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Enhanced microwave absorption property of silver decorated biomass ordered porous carbon composite materials with frequency selective surface incorporation 被引量:4
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作者 Yi Liu Jingnan Qin +2 位作者 Linlin Lu Jie Xu Xiaolei Su 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2023年第3期525-535,共11页
Porous carbon(PC)is a promising electromagnetic(EM)wave absorbing material thanks to its light weight,large specific surface area as well as good dissipating capacity.To further improve its microwave absorbing perform... Porous carbon(PC)is a promising electromagnetic(EM)wave absorbing material thanks to its light weight,large specific surface area as well as good dissipating capacity.To further improve its microwave absorbing performance,silver coated porous carbon(Ag@PC)is synthesized by one-step hydro-thermal synthesis process making use of fir as a biomass formwork.Phase compositions,morphological structure,and microwave absorption capability of the Ag@PC has been explored.Research results show that the metallic Ag was successfully reduced and the particles are evenly distributed inward the pores of the carbon formwork,which accelerates graphitization process of the amorphous carbon.The Ag@PC composite without adding polyvinyl pyrrolidone(PVP)exhibits higher dielectric constant and better EM wave dissipating capability.This is because the larger particles of Ag give rise to higher electric conductivity.After combing with frequency selective surface(FSS),the EM wave absorbing performance is further improved and the frequency region below-10 d B is located in8.20-11.75 GHz,and the minimal reflection loss value is-22.5 dB.This work indicates that incorporating metallic Ag particles and FSS provides a valid way to strengthen EM wave absorbing capacity of PC material. 展开更多
关键词 biomass carbon Ag@PC composite material frequency selective surface electromagnetic wave absorbing property
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Microstructure and hardness of WC-Co particle reinforced iron matrix surface composite 被引量:4
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作者 Zhang Peng Zeng Shaolian +1 位作者 Zhang Zhiguo Li Wei 《China Foundry》 SCIE CAS 2013年第6期374-379,共6页
In this study, a high Cr cast iron surface composite material reinforced with WC-Co particles 2-6 mm in size was prepared using a pressureless sand mold infiltration casting technique. The composition, microstructure ... In this study, a high Cr cast iron surface composite material reinforced with WC-Co particles 2-6 mm in size was prepared using a pressureless sand mold infiltration casting technique. The composition, microstructure and hardness were determined by means of energy dispersive spectrometry(EDS), electron probe microanalysis(EPMA), scanning electron microscope(SEM) and Rockwell hardness measurements. It is determined that the obtained composite layer is about 15 mm thick with a WC-Co particle volumetric fraction of ~38%. During solidification, interface reaction takes place between WC-Co particles and high chromium cast iron. Melting and dissolving of prefabricated particles are also found, suggesting that local Co melting and diffusion play an important role in promoting interface metallurgical bonding. The composite layer is composed of ferrite and a series of carbides, such as(Cr, W, Fe)23C6, WC, W2C, M6C and M12C. The inhomogeneous hardness in the obtained composite material shows a gradient decrease from the particle reinforced metal matrix composite layer to the matrix layer. The maximum hardness of 86.3 HRA(69.5 HRC) is obtained on the particle reinforced surface, strongly indicating that the composite can be used as wear resistant material. 展开更多
关键词 PARTICLE reinforcement INFILTRATION CASTING composite material high Cr cast IRON hardness
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AN IN SITU SURFACE COMPOSITE AND GRADIENT MATERIAL OF Al-Si ALLOY PRODUCED BY ELECTROMAGNETIC FORCE 被引量:3
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作者 Z.M. Xu, T.X. Li, Z.L. Zhu and Y.H. Zhou School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2001年第5期335-340,共6页
Because of the different conductivities between the primary phase (low electric conduc tivity) and the metal melt, electromagnetic force scarcely acts on the primary phase. Thus, an electromagnetic repulsive force ap... Because of the different conductivities between the primary phase (low electric conduc tivity) and the metal melt, electromagnetic force scarcely acts on the primary phase. Thus, an electromagnetic repulsive force applied by the metal melt exerts on the pri mary phase when the movement of the melt in the direction of electromagnetic force is limited. As a result, the repulsive force exerts on the primary phase to push them to move in the direction opposite to that of the electromagnetic force when the metal melt with primary phase solidifies under an electromagnetic force field. Based on this, a new method for production of in situ surface composite and gradient material by electromagnetic force is proposed. An in situ primary Si reinforced surface composite of Al-15wt%Si alloy and gradient material of Al-l9wt%Si alloy were produced by this method. The microhardness of the primary Si is HV1320. The reinforced phase size is in the range from 40μm to 100μm. The wear resistance of Al-Si alloy gradient material can be more greatly increased than that of their matrix material. 展开更多
关键词 Al-Si alloy electromagnetic force in situ surface composite gradient material
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Microstructure and properties of Cu matrix composites reinforced with surface-modified Kovar particles
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作者 Tao MENG Ri-chu WANG +1 位作者 Zhi-yong CAI Ying-jun YAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2024年第10期3251-3264,共14页
The thermal conductivity of Cu/Kovar composites was improved by suppressing element diffusion at the interfaces through the formation of FeWO_(4)coating on the Kovar particles via vacuum deposition.Cu matrix composite... The thermal conductivity of Cu/Kovar composites was improved by suppressing element diffusion at the interfaces through the formation of FeWO_(4)coating on the Kovar particles via vacuum deposition.Cu matrix composites reinforced with unmodified(Cu/Kovar)and modified Kovar(Cu/Kovar@)particles were prepared by hot pressing.The results demonstrate that the interfaces of Cu/FeWO_(4)and FeWO_(4)/Kovar in the Cu/Kovar@composites exhibit strong bonding,and no secondary phase is generated.The presence of FeWO_(4)impedes interfacial diffusion within the composite,resulting in an increase in grain size and a decrease in dislocation density.After surface modification of the Kovar particle,the thermal conductivity of Cu/Kovar@composite is increased by 110%from 40.6 to 85.6 W·m^(-1)·K^(-1).Moreover,the thermal expansion coefficient of the Cu/Kovar@composite is 9.8×10^(-6)K^(-1),meeting the electronic packaging requirements. 展开更多
关键词 electronic packaging material Cu/Kovar composite surface modification thermal conductivity
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A METHOD FOR PREDICTING BUCKLING LOADS OF COMPOSITE LAMINATED STRIPS WITH A SURFACE NOTCH
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作者 胡自力 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1999年第1期75-79,共5页
Surface notches lower the stiffness of laminated strips, so they lower the buckling loads of the laminated strips, too. In this paper a new method is proposed to predict the buckling loads of the laminated strips with... Surface notches lower the stiffness of laminated strips, so they lower the buckling loads of the laminated strips, too. In this paper a new method is proposed to predict the buckling loads of the laminated strips with a surface notch. The theoretical and experimental results show that the buckling loads decrease as the depth or width of the surface notches increase; when the stacking sequence of the laminated strips is [0°/0°/+ θ/-θ/0°/0°/+θ/-θ] s , the buckling load decrease as θ increases. It proves that the method is reliable and significant. 展开更多
关键词 composite materials laminated strips surface notch BUCKLING calculation method
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Effect of Different Bleaching Applications on the Surface Properties and Staining Susceptibility of Dental Composites
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作者 Pinlar Gul Osman Tolga Harorli +1 位作者 Nilgün Ak Mustafa Gündogdu 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第3期677-683,共7页
The aim of this study was to investigate the effects of two bleaching systems on micro hardness, surface roughness and color stability of two novel dental composites. Ormocer based restorative Admira and nano-filled c... The aim of this study was to investigate the effects of two bleaching systems on micro hardness, surface roughness and color stability of two novel dental composites. Ormocer based restorative Admira and nano-filled composite Clearfil Majesty Esthetic were bleached with 10% carbamide peroxide (Opalescence PF) or 35% hydrogen peroxide (Beyond Max 5) and subsequently immersed in four different staining solutions (coffee, tea, red wine, and cola). Distilled water was used as a control. Color measurements were performed with a spectrophotometer. Vickers micro hardness and roughness data were analyzed with two- way analysis of variance for repeated measures. The analysis of variance was used to compare the color change values. Duncan's multiple comparison test was applied to compare the results (a = 5%). AE~" values over 3.3 were considered clinically unacceptable. Micro hardness and surface roughness values of the tested composites were decreased significantly after bleaching applications. Red wine and tea storage caused perceptible discolorations in the composite resin materials after 30 days of 3-hour immersion. Home or office bleaching applications can affect the surface properties of resin composites and accelerate the staining process. 展开更多
关键词 composite resin BLEACHING surface roughness micro hardness DISCOLORATION
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Magnesium based surface metal matrix composites by friction stir processing 被引量:7
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作者 B.Ratna Sunil G.Pradeep Kumar Reddy +1 位作者 Hemendra Patle Ravikumar Dumpala 《Journal of Magnesium and Alloys》 SCIE EI CAS 2016年第1期52-61,共10页
Surface metal matrix composites(MMCs)are a group of modern engineered materials where the surface of the material is modified by dispersing secondary phase in the form of particles or fibers and the core of the materi... Surface metal matrix composites(MMCs)are a group of modern engineered materials where the surface of the material is modified by dispersing secondary phase in the form of particles or fibers and the core of the material experience no change in chemical composition and structure.The potential applications of the surface MMCs can be found in automotive,aerospace,biomedical and power industries.Recently,friction stir processing(FSP)technique has been gaining wide popularity in producing surface composites in solid state itself.Magnesium and its alloys being difficult to process metals also have been successfully processed by FSP to fabricate surface MMCs.The aim of the present paper is to provide a comprehensive summary of state-of-the-art in fabricating magnesium based composites by FSP.Influence of the secondary phase particles and grain refinement resulted from FSP on the properties of these composites is also discussed. 展开更多
关键词 surface composites Friction stir processing hardness Light weight Magnesium alloys Biomedical implants
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Microstructure of Ni /WC Surface Composite Layer on Gray Iron Substrate 被引量:2
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作者 杨贵荣 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2011年第5期861-866,共6页
The surface infiltrated composite (Ni/WC) layers on gray iron substrate were fabricated through a vacuum infiltration casting technique (VICT) using Ni-based composite powder with different WC particles content as... The surface infiltrated composite (Ni/WC) layers on gray iron substrate were fabricated through a vacuum infiltration casting technique (VICT) using Ni-based composite powder with different WC particles content as raw materials.The microstructures of surface infiltrated composite layer,the interface structures between surface composite layer and the substrate,the changes of macro-hardness with the increasing of WC content and the micro-hardness distribution are investigated.The infiltrated composite layer includes a surface composite layer and a transition layer,and the thickness of the transition layer decreases with the increasing content of WC.The thickness of transition layer with 20%WC content in the surface infiltrated composite layer was 170 μm which was the thickest for all transition layers with different WC content.The surface composite layer was mainly composed of WC,W2C,FeB and NiB,along with Ni-Cr-Fe,Ni (Cr) solid solution,Ni (Si) solid solution and Ni (Fe) solid solution.The transition layer was composed of Ni (Cr) solid solution,Ni (Fe) solid solution,Ni (Si) solid solution,Fe (Ni) solid solution and eutectic.The surface macro-hardness and micro-hardness of the infiltrated layer had been evaluated.The macro-hardness of the surface composite layer decreases with the WC content increasing,and the average macro-hardness is HRC60.The distribution of micro-hardness presents gradient change.The average micro-hardness of the infiltrated layer is about HV1000. 展开更多
关键词 Ni/WC surface composite layer vacuum infiltration casting technique gray iron substrate MICROSTRUCTURE hardness of the infiltrated composite layer
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Co-continuous Composite Material Design Using the Volumetric Distance Field Based on Analytic Shape Functions 被引量:1
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作者 Huimin Han Dong-Jin Yoo Yan Liang 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2019年第1期88-96,共9页
An effective and simple design method for co-continuous composite material construction is proposed by using a hybrid methodology with triply periodic minimal surface( TPMS) cellular topology and the volumetric distan... An effective and simple design method for co-continuous composite material construction is proposed by using a hybrid methodology with triply periodic minimal surface( TPMS) cellular topology and the volumetric distance field( VDF). After generating a set of VDF-based features for the given exterior shape and desired internal core structure,a series of simple modifications in distance fields enabled us to obtain an arbitrarily-shaped complex co-continuous composite material computational model. Design results and manufactured prototypes through 3 D printing technology show that the proposed methodology has the potential to open a new paradigm for producing multifunctional next generation co-continuous composite materials which are impossible to design and manufacture using traditional CAD and CAM. 展开更多
关键词 triply periodic minimal surface (TPMS) cellular topology VOLUMETRIC distance field (VDF) co-continuous composite material model basic feature 3D printing technology
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Microstructure-based three-dimensional characterization of chip formation and surface generation in the machining of particulate-reinforced metal matrix composites 被引量:2
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作者 Qi Wu Liangchi Zhang 《International Journal of Extreme Manufacturing》 EI 2020年第4期74-85,共12页
Particulate-reinforced metal matrix composites(PRMMCs)are difficult to machine due to the inclusion of hard,brittle reinforcing particles.Existing experimental investigations rarely reveal the complex material removal... Particulate-reinforced metal matrix composites(PRMMCs)are difficult to machine due to the inclusion of hard,brittle reinforcing particles.Existing experimental investigations rarely reveal the complex material removal mechanisms(MRMs)involved in the machining of PRMMCs.This paper develops a three-dimensional(3D)microstructure-based model for investigating the MRM and surface integrity of machined PRMMCs.To accurately mimic the actual microstructure of a PRMMC,polyhedrons were randomly distributed inside the matrix to represent irregular SiC particles.Particle fracture and matrix deformation and failure were taken into account.For the model’s capability comparison,a two-dimensional(2D)analysis was also conducted.Relevant cutting experiments showed that the established 3D model accurately predicted the material removal,chip morphology,machined surface finish,and cutting forces.It was found that the matrix-particle-tool interactions led to particle fractures,mainly in the primary shear and secondary deformation zones along the cutting path and beneath the machined surface.Particle fracture and dilodegment greatly influences the quality of a machined surface.It was also found that although a 2D model can reflect certain material removal features,its ability to predict microstructural variation is limited. 展开更多
关键词 particulate-reinforced metal-matrix composites MMCS finite element three-dimensional modelling particle fracture material removal surface integrity
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Effect of Autoclaving on the Action of Polishing Systems on the Surface Roughness of a Composite Resin
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作者 Vanessa Carla Ruschel Hamilton Pires Maia Elito Araujo Cleo Nunes Sousa 《材料科学与工程(中英文A版)》 2014年第3期120-125,共6页
关键词 表面粗糙度 高压灭菌 复合树脂 光系统 试样制作 周期数 纳米粒子 方差分析
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Improving tribological properties of CP-Ti by in-situ fabrication of Ti-WC surface composite using a pinless WC-Co stirring tool
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作者 Meisam ASHOURI Reza TAGHIABADI +2 位作者 Mohammad EMAMI Morteza SAGHAFI YAZDI Iman ANSARIAN 《Journal of Central South University》 SCIE EI CAS 2024年第10期3688-3702,共15页
A surface Ti-WC composite was fabricated on CP-Ti by surface friction stirring(SFS)using a pinless WC-Cotool at a processing window of 800−2500 r/min and 8−50 mm/min.At 1600 r/min-50 mm/min,a defect-free compositelaye... A surface Ti-WC composite was fabricated on CP-Ti by surface friction stirring(SFS)using a pinless WC-Cotool at a processing window of 800−2500 r/min and 8−50 mm/min.At 1600 r/min-50 mm/min,a defect-free compositelayer with an average hardness of~HV 1170 is formed.The hardness was increased by WC and TiN reinforcingparticles,dissolved Co atoms in Ti,and the formation of ultrafine grains.WC particles were incorporated into the Tisubstrate owing to the intense frictional interaction/heating at the tool-plate interface(~1000℃),which led to strengthloss and wear of the tool.The Williamson-Hall analysis of the XRD peaks of the SFSed sample confirmed a significantlysmall crystallite size(~100 nm).Wear tests showed that the wear resistance of the composite structure was about 4.5times higher than that of the CP-Ti.Friction analysis revealed a significant reduction in average value and fluctuations ofthe friction coefficient. 展开更多
关键词 surface friction stirring CP-Ti Ti-WC surface composite hardness wear
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Wear and Contact Temperature on Steel Surface in Linear Dry Friction Contact with Polimers with SGF
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作者 Dorin Rus Lucian Capitanu 《Journal of Mechanics Engineering and Automation》 2015年第10期554-566,共13页
In this paper, we tried to present a qualitative correlation, based on extensive experimental trials between the value and the evolution of the friction coefficient, wear and contact temperature in the case of linear ... In this paper, we tried to present a qualitative correlation, based on extensive experimental trials between the value and the evolution of the friction coefficient, wear and contact temperature in the case of linear dry contact, thermoplastic material reinforced with SGF (short glass fibres) and various steel surfaces. We tried, believing successfully, the graphic illustration of the evolution of the steel surface wear and of the contact temperature, depending on the friction coefficient. It was analyzed in detail the influence of the normal load and sliding speed, but also of the metallic surface roughness on the friction coefficient. 展开更多
关键词 Friction coefficient evolution wear of steel surface contact temperature plastic material transfer hardness of steel surface influence
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Plasma Surface Modification of Kevlar Fibers
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作者 贺弘 李荣志 +2 位作者 朱鹤孙 孙慕瑾 胡宝蓉 《Journal of Beijing Institute of Technology》 EI CAS 1992年第1期66-74,共9页
Cold plasma techniques were used to treat the surface of Kevlar-49 fibers. The dynamic parameters of wetting, contact-angles and surface energy of the fiber before and alter the treatment were compared to see the chan... Cold plasma techniques were used to treat the surface of Kevlar-49 fibers. The dynamic parameters of wetting, contact-angles and surface energy of the fiber before and alter the treatment were compared to see the changes in the wetting property. ESCA and electron spin resonance were utilized to examine the chemical composition and the attached free radicals of the fiber surface. The results, together with changes in the magnitude of the contact-angle and the number of free radicals with time after the plasma treatment do not show any ageing effect. Single filament test revealed that the tensile strength was not impaired but even improved somewhat after the plasma treatment. The experiment shows that the interlaminar shear strength of Kevlar fiber reinforced epoxy resin compo- site is increased for more than 60%% after the treatment. 展开更多
关键词 KEVLAR surface modification composite materials adhsions/plasma graft
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Surface Treatment of UHMWPE Fibers for Adhesion Promotion in Epoxy Polymers 被引量:1
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作者 宋俊 肖长发 +1 位作者 安树林 贾广霞 《Journal of Donghua University(English Edition)》 EI CAS 2007年第3期329-332,共4页
Surface of Ultra-high molecular weight polyethylene (UHMWPE) fiber were treated by chromic acid chemical etching, pyrrole chemical vapour phase deposition and the complex of these two methods, respectively. The chan... Surface of Ultra-high molecular weight polyethylene (UHMWPE) fiber were treated by chromic acid chemical etching, pyrrole chemical vapour phase deposition and the complex of these two methods, respectively. The change of surface properties and structure of fibers were discussed by Fiour Transform Infrared Spectroscope (FTIR), Dynamic Mechanical Analysis (DMA) and Scanning Electron Microscope (SEM). The results show that some new oxygenous groups could be found on surface of UHMWPE fiber after chromic acid chemical etching, which enhanced intemolecular interaction with polypyrrcle. The adhesion of the fiber and resin natrix increased after pyrrole chemical vapour deposition. When chromic acid etching combined with pyrrole chemical vapor deposition, the treated fiber not only has the same properties as original fiber bat also outstanding adhesion to epoxy resin matrix, and its composites have better mechanic properties shear strength), resulting from intemolecular interaction treated fiber and polypyrrole. 展开更多
关键词 ultra-high molecular weight polyethylene surface treatment pol yprrole composite material
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Effect of Surface Treatment on Bonding Strength of Aluminum-Magnesium Hot-Rolled Composite Plate 被引量:1
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作者 Yang Bin Bai Wenbo +2 位作者 Zheng Yang Yu Chao Xiao Hong 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2024年第8期2167-2173,共7页
The effect of different surface treatments on the bonding strength of composite plates was investigated under the conditions of 400℃ and reduction ratio of 45%.Results show that the wire brush grinding treatment can ... The effect of different surface treatments on the bonding strength of composite plates was investigated under the conditions of 400℃ and reduction ratio of 45%.Results show that the wire brush grinding treatment can only eliminate the oxide film on the plate surface,but it can hardly produce a hard layer on the plate surface.The bonding effect depends on the element diffusion promoted by the close contact between the metals on both sides of the interface.After anodic oxidation,there is a hard layer on the metal surface,and the hard layer broken during the rolling process forms a mechanical occlusion at the bonding interface.However,the hard layer cannot form an effective combination with the metal at the interface,and the bonding can only occur in the fresh metal bonding area at the crack of the hard layer.The acid-alkali washing treatment can completely remove the hard layer on the surface of both alloys without increasing the surface roughness of the plate,and the metal on both sides of the interface is more closely bonded during the rolling process.The optimal bonding strength can be obtained by surface treatment of acid-alkali washing for the aluminum-magnesium hot-rolled bonding. 展开更多
关键词 aluminum-magnesium composite plate surface treatment hard layer bonding strength
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Femtosecond laser-induced periodic surface structures on hard and brittle materials 被引量:1
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作者 ZHAO GuoXu WANG Gong +6 位作者 LI YunFei WANG Lei LIAN YuDong YU Yu ZHAO Hui WANG YuLei LU ZhiWei 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2024年第1期19-36,共18页
Hard and brittle materials have high hardness,excellent optical stability,chemical stability,and high thermal stability.Hence,they have huge application potential in various fields,such as optical components,substrate... Hard and brittle materials have high hardness,excellent optical stability,chemical stability,and high thermal stability.Hence,they have huge application potential in various fields,such as optical components,substrate materials,and quantum information,especially under harsh conditions,such as high temperatures and high pressures.Femtosecond laser direct writing technology has greatly promoted the development of femtosecond laser-induced periodic surface structure(Fs-LIPSS or LIPSS by a femtosecond laser)applications of hard and brittle materials due to its high precision,controllability,and three-dimensional processing ability.Thus far,LIPSSs have been widely used in material surface treatment,optoelectronic devices,and micromechanics.However,a consensus has not been reached regarding the formation mechanism of LIPSSs on hard and brittle materials.In this paper,three widely accepted LIPSS formation mechanisms are introduced,and the characteristics and applications of LIPSSs on diamonds,silicon,silicon carbide,and fused silica surfaces in recent years are summarized.In addition,the application prospects and challenges of LIPSSs on hard and brittle materials by a femtosecond laser are discussed. 展开更多
关键词 laser-induced periodic surface structures hard and brittle materials femtosecond laser
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Quantitative Correlation between Friction Coefficient and Steel Surface Wear in the Case of Linear Friction Dry Contact with Reinforced Polymers with Glass Fibres
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作者 Rus Dorin Lucian Capitanu Liliana-Laura Badita 《材料科学与工程(中英文A版)》 2014年第5期135-145,共11页
关键词 短玻璃纤维 表面磨损 摩擦接触 增强复合材料 系数和 定量关系 线性 钢材
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SURFACE CARBURIZATION OF TiAl BASED ALLOY
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作者 Huang, Baiyun He, Yuehui +1 位作者 Qu, Xuanhui Kong, Gaoning 《中国有色金属学会会刊:英文版》 EI CSCD 1994年第4期59-61,共3页
SURFACECARBURIZATIONOFTiAlBASEDALLOY¥Huang,Baiyun;He,Yuehui;Qu,Xuanhui;Kong,Gaoning(PowderMetallurgyResearch... SURFACECARBURIZATIONOFTiAlBASEDALLOY¥Huang,Baiyun;He,Yuehui;Qu,Xuanhui;Kong,Gaoning(PowderMetallurgyResearchInstitute,Central... 展开更多
关键词 TIAL based ALLOY CARBURIZATION OXIDATION RESISTANCE MECHANICAL properties
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Wear characteristics of copper-based surface-level microcomposites and nanocomposites prepared by friction stir processing 被引量:3
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作者 S.CARTIGUEYEN K.MAHADEVAN 《Friction》 CSCD 2016年第1期39-49,共11页
关键词 friction stir processing surface engineering surface metal matrix composites microstructure hardness wear characteristics
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