期刊文献+
共找到39篇文章
< 1 2 >
每页显示 20 50 100
Studies on Aluminum-Iron Ore in-Situ Particulate Composite
1
作者 S. Sarkar Akhilesh Singh 《Open Journal of Composite Materials》 2012年第1期22-30,共9页
Discontinuously reinforced aluminium matrix composites are fast emerging as engineering materials and competing with common metals and alloys. They are gaining significant acceptance because of higher specific strengt... Discontinuously reinforced aluminium matrix composites are fast emerging as engineering materials and competing with common metals and alloys. They are gaining significant acceptance because of higher specific strength, specific modulus and good wear resistance as compared to ordinary unreinforced alloys. Reinforcing particles or short fibers normally used are silicon carbide and alumina which are added externally. Recently it has been shown that alumina particles can be produced in-situ by reaction with metallic oxides reduced by aluminium. Alumina particles thus produced are dispersed in the aluminium matrix and the elementary metal gives solid solution strengthening of the matrix. In-situ particulate composites in comparison with conventional cast particulate composites produced by external addition promote cleaner interface, eliminates interface incompatibility of the matrices with the reinforcements, help to achieve greater thermodynamic stability of reinforcement particles in the matrix at elevated temperature and also increase the possibility of developing coherency between the matrix and particles formed in-situ. The morphology and the distribution of particles strongly influence the physical and mechanical properties of composites. In the present investigation, iron ore was added to molten aluminium, aluminium-magnesium and aluminium-silicon alloys by vortex method. The iron oxides present in the iron ore are observed to react with aluminium, magnesium resulting in production of Al2O3, MgO and metallic iron which dissolved in liquid aluminium. The composites thus produced were cast into cast iron die. The mechanical properties of the composites were evaluated. The dry sliding wear behavior of the cast composites was studied at different loads and different sliding velocities using Pin-On-Disk configuration wear testing machine. The worn surfaces and the wear debris were also analyzed using optical microscope and scanning electron microscope. 展开更多
关键词 WETTABILITY particulate Composite Iron-Ore in-situ and SLIDING VELOCITY
下载PDF
In-situ TiC Reinforced Composite Coating Produced by Powder Feeding Laser Cladding 被引量:9
2
作者 Sen YANG Wenjin LIU Minlin ZHONG 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2006年第4期519-525,共7页
A Ni-base alloy composite coating reinforced with TiC particles of various shapes and sizes on medium carbon steel substrate was produced by multilayer laser cladding. The chemical compositions, microstructures and su... A Ni-base alloy composite coating reinforced with TiC particles of various shapes and sizes on medium carbon steel substrate was produced by multilayer laser cladding. The chemical compositions, microstructures and surface morphology of the cladded layer were analyzed using energy dispersive X-ray spectroscopy (EDX), scanning electron microscope (SEM), and X-ray diffractometry (XRD). The experimental results showed that an excellent metallurgical bonding between the coating and the substrate was obtained. The microstructure of the coating was mainly composed of γ-Ni dendrites, a small amount of CrB, Ni3B, M23C6 and dispersed TiC particles. Much more and larger TiC particles formed in the overlapping zone, which led to a slightly higher microhardness of this zone. The maximum microhardness of the coating was about HV0.21200. The effects of the laser processing parameters on the microstructures and properties of coating were also investigated. 展开更多
关键词 Laser cladding in-situ synthesized Powder feeding tic particle
下载PDF
Wear Behavior of In-situ TiC Particles Reinforced Aluminum Matrix Composite 被引量:3
3
作者 隋艳伟 CHEN Xiao +5 位作者 WANG Rui QI Jiqiu WEI Fuxiang HE Yezeng MENG Qingkun 孙智 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2017年第3期552-556,共5页
The microstructure, tensile property and wear resistance of 7075 aluminum matrix composite reinforced with TiC particles prepared by in-situ reaction casting were investigated. The effect of TiC reinforcement on wear ... The microstructure, tensile property and wear resistance of 7075 aluminum matrix composite reinforced with TiC particles prepared by in-situ reaction casting were investigated. The effect of TiC reinforcement on wear behavior was analyzed. The wear mechanism was also discussed. A micro-mechanism model of reaction kinetics for synthesis of TiC was acquired. Results show that TiC could increase the tensile and yield strength, but decrease the elongation. Besides, TiC particles improve the property of wear resistance of 7075 aluminum alloy. The wear mechanisms include abrasive wear and adhesive wear in wear test process. 展开更多
关键词 in-situ reaction tic tensile properties wear behavior
下载PDF
Microstructure Characteristic of In-situ Ti/TiC Composites 被引量:1
4
作者 Bo YANG Beijing institute of Aeronauticul Materials, Beijing 100095, China Erlin ZHANG Yunxue JIN Zhaojun ZHU and Songyan ZENG National Key Lab. of Precision Hot Processing of Metals, Harbin institute of Technology, Harbin 150001, China 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2001年第1期103-104,共2页
TiC reinforced titanium composites has been produced with different Al content and C content by XDTM. The results have shown that TiC particles are of two different morphologies f coarse dendritical primary TiC and sh... TiC reinforced titanium composites has been produced with different Al content and C content by XDTM. The results have shown that TiC particles are of two different morphologies f coarse dendritical primary TiC and short bar-shape eutectic TiC. Al content has great effects on the morphology of TiC. With the increasing of Al content, the morphology of primary TiC changes from coarse developed dendrite into short bar-shape or plate--shape TiC with 35%Al. Meanwhile, the structure of the matrix changes from single Ti to Ti and Ti3Al, and to Ti3Al and TiAl. However, the C content has no influence on the microstructure of matrix. When the C content is less than 1.2%, the dendrite TiC disappears and only short bar-shape or plate-shape TiC exists in the composites. In addition, the effect of he3t treatment on the morphology of TiC has also Studied. 展开更多
关键词 tic Microstructure Characteristic of in-situ Ti/tic Composites
下载PDF
Fabrication of in-situ TiC reinforced composite coating via plasma transferred arc process
5
作者 黄诗铭 孙大干 +2 位作者 王文权 徐红勇 刘帅 《China Welding》 EI CAS 2015年第2期35-41,共7页
In this work, the in-situ TiC panicles reinforced composite coating was prepared by plasma transferred arc process on the surface of Q235 steel. Microstructures, phase composition and wear property of the coating were... In this work, the in-situ TiC panicles reinforced composite coating was prepared by plasma transferred arc process on the surface of Q235 steel. Microstructures, phase composition and wear property of the coating were investigated. The results showed that the composite coating consisted mainly of T-Ni, TiC, Cr23C6, Cr7C3, Ni3Si, CrB, Cr5B3 and FeNi3 phases, and was characterized by fine TiC panicles embedded in Ni matrix. The wear resistance of composite coating was significantly improved compared with that of the steel substrate. The wear volume loss of the substrate was 443 mm3, which was about 9 times as that of in-situ TiC particles reinforced composite coating (49 mm3 ). It is mainly attributed to the presence of chromium carbide particles and in-situ TiC particles and their favorable combination with Ni matrix. 展开更多
关键词 plasma transferred arc process in-situ tic particles MICROSTRUCTURES wear resistance
下载PDF
Fabrication and Characterizations of Mechanical Properties of Al-4.5%Cu/10TiC Composite by <i>In-situ</i>Method
6
作者 Anand Kumar Manas Mohan Mahapatra Pradeep Kumar Jha 《Journal of Minerals and Materials Characterization and Engineering》 2012年第11期1075-1080,共6页
Addition of reinforcement such as TiC, SiC, Al2O3, TiO2, TiN, etc. to Aluminium matrix for enhancing the mechanical properties has been a well established fact. In-situ method of reinforcement of the Aluminium matrix ... Addition of reinforcement such as TiC, SiC, Al2O3, TiO2, TiN, etc. to Aluminium matrix for enhancing the mechanical properties has been a well established fact. In-situ method of reinforcement of the Aluminium matrix with ceramic phase like Titanium Carbide (TiC) is well preferred over the Ex-situ method. In the present investigation, Al-Cu alloy (series of 2014 Aluminium alloy) was used as matrix and reinforced with TiC using In-situ process. The Metal Matrix Composite (MMC) material, Al-4.5%Cu/10%TiC developed exhibited higher yield strength, ultimate strength and hardness as compared to Al-4.5%Cu alloy. Percentage increase in yield and ultimate tensile strengths were reported to be about 15% and 24% respectively whereas Vickers hardness increased by about 35%. The higher values in hardness indicated that the TiC particles contributed to the increase of hardness of matrix. Fractured surface of the tensile specimen of the composite material indicated presence of dimpled surface, indicating thereby a ductile type of fracture. During the fabrication of composite, reaction products such as Al3Ti, Al2Cu and Al3C4 were identified with various morphologies and sizes in metal matrix. 展开更多
关键词 in-situ Metal Matrix Composites tic REINFORCEMENT MECHANICAL Characterization
下载PDF
Microstructure and Mechanical Property of in-situ Al-Cu/TiC Composites 被引量:6
7
作者 Zhang, EL Zeng, SY +2 位作者 Yang, B Li, QC Ma, MZ 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1998年第3期255-258,共4页
An approach named direct reaction synthesis (DRS) has been developed to fabricate particulate composites with an extremely fine reinforcement size. ID situ Al matrix composites were fabri-cated by DRS. Extensive analy... An approach named direct reaction synthesis (DRS) has been developed to fabricate particulate composites with an extremely fine reinforcement size. ID situ Al matrix composites were fabri-cated by DRS. Extensive analysis of the composites microstructure using SEM and TEM identify that the reinforcement formed during the DRS process is Ti carbide (TiC) particle, generally less than 1.0 μm. The reacted, semisolid extruded samples exhibit a homogeneous distribution of fine TiC particles in Al-Cu matrix, Mechanical property evaluation of the composites has revealed a very high tensile strength relative to the matrix alloy. Fractographic analysis indicates ductile failure although the ductility and strength are limited by the presence of coarse titanium aluminides (Al3Ti). 展开更多
关键词 tic CU FIGURE Microstructure and Mechanical Property of in-situ Al-Cu/tic Composites Al
全文增补中
铝熔体中原位反应生成TiC颗粒的机制分析 被引量:19
8
作者 杨滨 王玉庆 +1 位作者 张键 周本濂 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 1997年第6期12-17,共6页
借助XRD、EPMA、TEM和SEM等分析测试手段对铝熔体中原位反应合成TiC进行的研究表明:(1)形成Al3Ti放出的热量可能是引发后续TiC反应的原因之一;(2)整个反应过程中,扩散机制和溶解-析晶机制实际上都存... 借助XRD、EPMA、TEM和SEM等分析测试手段对铝熔体中原位反应合成TiC进行的研究表明:(1)形成Al3Ti放出的热量可能是引发后续TiC反应的原因之一;(2)整个反应过程中,扩散机制和溶解-析晶机制实际上都存在。在相对较低的温度区时,是由较慢的扩散过程控制整个反应。这时,随压制块温度升高,首先发生3Al(l)+Ti(s)→Al3Ti的反应,然后通过该反应的反应热引发TiC的反应;而高温区时。 展开更多
关键词 铝熔体 复合材料 原位反应 碳化钛
下载PDF
原位TiC颗粒增强铸造钢基复合材料制备工艺 被引量:10
9
作者 严有为 魏伯康 +3 位作者 林汉同 刘生发 范晓明 傅正义 《特种铸造及有色合金》 CAS CSCD 北大核心 2002年第5期19-21,共3页
利用钢液自身的高温直接引燃压入其中的Ti C Fe预制块 ,原位合成TiC增强颗粒 ,然后 ,对含有TiC颗粒的钢液进行铸造成形 ,即可获得TiC颗粒增强钢基复合材料。着重研究了钢液温度、合成的TiC颗粒含量以及钢液保温时间对复合材料组织的影... 利用钢液自身的高温直接引燃压入其中的Ti C Fe预制块 ,原位合成TiC增强颗粒 ,然后 ,对含有TiC颗粒的钢液进行铸造成形 ,即可获得TiC颗粒增强钢基复合材料。着重研究了钢液温度、合成的TiC颗粒含量以及钢液保温时间对复合材料组织的影响。在此基础上 ,优化了复合材料的制备工艺参数 。 展开更多
关键词 反应合成 tic颗粒 钢基复合材料 铸造
下载PDF
Fe-Ti-C熔体中TiC颗粒的原位合成及长大过程研究 被引量:22
10
作者 严有为 魏伯康 +2 位作者 傅正义 林汉同 袁润章 《金属学报》 SCIE EI CAS CSCD 北大核心 1999年第9期909-912,共4页
本文研究了Fe-Ti-C合金熔体中原位TiC颗粒的形成过程,结果表明:在合金熔体的等温过程中,Ti和C原子首先不断反应合成TiC颗粒,直至生成的TiC与熔体达到平衡;然后,TiC颗粒按照小颗粒不断溶解、大颗粒相应粗化的模式而长大其中,Ti... 本文研究了Fe-Ti-C合金熔体中原位TiC颗粒的形成过程,结果表明:在合金熔体的等温过程中,Ti和C原子首先不断反应合成TiC颗粒,直至生成的TiC与熔体达到平衡;然后,TiC颗粒按照小颗粒不断溶解、大颗粒相应粗化的模式而长大其中,TiC颗粒的合成过程又可进一步分为TiC晶核的形成和长大两个阶段,形核阶段越长,熔体中TiC颗粒的数目越多.尺寸越小,而当TiC的合成反应平衡后、如继续延长等温时间,则熔体中TiC颗粒的尺寸增加。 展开更多
关键词 Fe-Ti-C熔体 原位反应 复合材料 碳化钛
下载PDF
液态反应法制备TiC_p增强铸造Fe-Cr-Ni基复合材料 被引量:9
11
作者 惠希东 王执福 +2 位作者 杨院生 吴欣强 陈熙琛 《金属学报》 SCIE EI CAS CSCD 北大核心 1998年第10期1115-1120,共6页
研究了利用液态反应法制备的TiC颗粒(TiCo)增强铸造Fe-Cr-Ni基复合材料的显微结构和力学性能.该复合材料主要由γ基体和均匀分布的尺寸为1-5μm的球状或多面体状TiCp组成γ/TiCp界面洁净,两相靠近界面的区域内均存在高密度位错(Ti... 研究了利用液态反应法制备的TiC颗粒(TiCo)增强铸造Fe-Cr-Ni基复合材料的显微结构和力学性能.该复合材料主要由γ基体和均匀分布的尺寸为1-5μm的球状或多面体状TiCp组成γ/TiCp界面洁净,两相靠近界面的区域内均存在高密度位错(Ti十C)加入量(质量分数)为3%-6%时复合材料的常温和高温拉伸性能比基体合金明显提高,其拉伸断口在800℃时仍能保持韧性断裂特征. 展开更多
关键词 液态反应法 铸造 Fe-Cr-Ni基 复合材料 碳化钛
下载PDF
碳含量对自生TiC_P增强钛基复合材料组织的影响 被引量:15
12
作者 张二林 金云学 +3 位作者 曾松岩 朱兆军 李东 康强 《材料工程》 EI CAS CSCD 北大核心 2000年第6期7-12,共6页
采用反应自生法制备了 Ti C颗粒增强钛合金基复合材料 ,并通过 XRD,SEM对复合材料的相组成和微观组织进行了研究。结果表明 :在 Ti- 6Al- 1 .8C中主要存在 Ti和 Ti C两种相。Ti C以树枝状初生 Ti C和短棒状共晶 Ti C两种形态存在。对 T... 采用反应自生法制备了 Ti C颗粒增强钛合金基复合材料 ,并通过 XRD,SEM对复合材料的相组成和微观组织进行了研究。结果表明 :在 Ti- 6Al- 1 .8C中主要存在 Ti和 Ti C两种相。Ti C以树枝状初生 Ti C和短棒状共晶 Ti C两种形态存在。对 Ti C晶格常数的计算结果表明 ,Ti C的衍射峰存在一定的偏移 ,主要是由于 Ti C中存在 C空位。研究了 C含量对材料组织和 Ti C形貌的影响。结果表明 :C含量对基体组织基本没有影响 ,但是随着 C含量由 1 .98%减少到 0 .39% ,粗大的树枝状 Ti C逐渐消失 ,Ti C以短棒状为主 ,部分呈羽毛状。 展开更多
关键词 反应自生 钛合金基复合材料 tic 微观组织
下载PDF
自生TiC增强钛基复合材料的微观组织 被引量:10
13
作者 张二林 金云学 +3 位作者 曾松岩 朱兆军 康强 李东 《材料研究学报》 EI CAS CSCD 北大核心 2000年第5期524-530,共7页
采用反应自生法制备了 TiC颗粒增强钛合金基复合材料,研究了复合材料的相组成和微观组 织.在 Ti-6Al-2C合金中存在 Ti和 TiC两种相. TiC以树枝状初生 TiC和短棒状共晶 TiC两种 形态存在,其中共晶 TiC... 采用反应自生法制备了 TiC颗粒增强钛合金基复合材料,研究了复合材料的相组成和微观组 织.在 Ti-6Al-2C合金中存在 Ti和 TiC两种相. TiC以树枝状初生 TiC和短棒状共晶 TiC两种 形态存在,其中共晶 TiC主要存在于晶界,特别是三角晶界处 TiC晶格常数的计算结果表明 TiC的 衍射峰存在一定的偏移,主要是由于存在于 TiC中的 C空位引起晶格畸变。随着 Al含量的增加,初生 TiC由发达粗大的树枝晶变为不发达的树枝晶,当 Al含量为 35%时变为短棒状和薄片状的 TiC.基体 组织也相应地由单一的 Ti基体变为 Ti和 Ti3Al的两相基体以及 Ti3Al和 TiAl两相基体.根据相图 分析了组织变化的主要原因. 展开更多
关键词 反应自主 钛合金基复合材料 tic 微观组织
下载PDF
TiC/Fe表面梯度复合材料微区组织及陶瓷层磨损性能 被引量:5
14
作者 王亮亮 许云华 +2 位作者 钟黎声 王娟 闫洪华 《焊接学报》 EI CAS CSCD 北大核心 2013年第5期49-53,115,共5页
采用灰铸铁(HT300)与厚度为0.25 mm的钛板,通过浇注法使得灰铸铁与钛板紧密结合,在真空管式炉中1 138℃保温时间8 h后,等温处理并炉冷.通过观察,在基体表面原位生成了TiC颗粒增强铁基表面梯度复合材料,对梯度复合区进行显微组织观察、... 采用灰铸铁(HT300)与厚度为0.25 mm的钛板,通过浇注法使得灰铸铁与钛板紧密结合,在真空管式炉中1 138℃保温时间8 h后,等温处理并炉冷.通过观察,在基体表面原位生成了TiC颗粒增强铁基表面梯度复合材料,对梯度复合区进行显微组织观察、显微硬度测量以及磨损性能测试.结果表明,TiC颗粒增强表面梯度复合材料大致分为三层,各层之间最大的区别是:生成的TiC颗粒的大小及形状不相同;从复合层(C区)到珠光体区显微硬度逐渐降低,显微硬度最大的区域出现在致密陶瓷层(C区).因此对TiC颗粒增强表面梯度复合材料致密陶瓷层进行了磨粒磨损试验,表明陶瓷层耐磨性比灰铸铁(HT300)有了很大程度上的提高. 展开更多
关键词 碳化钛颗粒 显微硬度 陶瓷层 耐磨性
下载PDF
碳含量对TiC颗粒增强铁基复合材料微观结构的影响 被引量:11
15
作者 章桥新 梅志 杨勇勤 《特种铸造及有色合金》 CAS CSCD 北大核心 2001年第2期8-9,共2页
采用分析电镜和X射线衍射仪研究了原位合成TiC颗粒增强铁基复合材料的微观结构 ,结果表明所形成的颗粒增强相为非化学式的TiCxN1-x,其中x值大小随基体含碳量的高低而发生明显变化 ,基体中较高的含碳量有助于抑制Fe2
关键词 含碳量 微观结构 铁基复合材料 原位合成 碳化钛
下载PDF
电渣熔铸TiC增强钢基复合材料组织性能初探 被引量:4
16
作者 马建国 黄曼平 +2 位作者 尤显卿 任昊 斯庭智 《特种铸造及有色合金》 CAS CSCD 北大核心 2005年第1期16-17,共2页
用电渣熔铸的方法制备了 3 %的TiC颗粒增强轴承钢复合材料 ,对其组织性能进行了初步的探索。试验结果表明 ,该复合材料的孔隙小、致密度高 ;TiC颗粒较为均匀地分布在基体中 ,并保留了原始的形态 ,在晶界处形成了Fe3 C化合物 ;复合材料... 用电渣熔铸的方法制备了 3 %的TiC颗粒增强轴承钢复合材料 ,对其组织性能进行了初步的探索。试验结果表明 ,该复合材料的孔隙小、致密度高 ;TiC颗粒较为均匀地分布在基体中 ,并保留了原始的形态 ,在晶界处形成了Fe3 C化合物 ;复合材料的耐磨性比基体材料有明显提高。 展开更多
关键词 电渣熔铸 tic颗粒 显微组织 磨损
下载PDF
TiC颗粒增强钢铁基复合材料的研究现状与展望 被引量:6
17
作者 王静 王一三 丁义超 《材料导报》 EI CAS CSCD 北大核心 2005年第F05期360-362,共3页
论述了TiC颗粒增强钢铁基复合材料主要制备技术的特点及存在的问题.并对其进行了对比评价,对国内外的最新研究进展和应用现状进行了综述.在此基础上展望了TiC颗粒增强钢铁基复合材料的发展前景。
关键词 碳化钛 钢铁基复合材料 颗粒增强
下载PDF
熔体内合成TiC颗粒增强Al基复合材料及其性能研究 被引量:4
18
作者 宋谋胜 张杰 +2 位作者 李勇 王应 张东方 《热加工工艺》 CSCD 北大核心 2017年第20期116-120,共5页
在高温Al熔体内原位反应合成了Ti C颗粒进而制备了不同质量分数Ti C增强相的Al基复合材料。实验发现,原位生成的Ti C相与基体结合紧密,能有效细化基体组织。随着基体中Ti C含量增加,复合材料的致密性下降,但硬度增大,Ti C含量为10wt%时... 在高温Al熔体内原位反应合成了Ti C颗粒进而制备了不同质量分数Ti C增强相的Al基复合材料。实验发现,原位生成的Ti C相与基体结合紧密,能有效细化基体组织。随着基体中Ti C含量增加,复合材料的致密性下降,但硬度增大,Ti C含量为10wt%时具有最佳硬度。摩擦测试表明:随Ti C增强颗粒的增加,复合材料磨损率减小,复合材料在10 N和25 N载荷下经30 m磨损行程,其磨损失重率仅分别为0.45%和0.67%,表明其具有优良的抗磨损性能。摩擦后复合材料表面产生了大量平行而明显的"犁削"痕迹,其摩擦机制主要为疲劳磨损。 展开更多
关键词 反应合成 tic颗粒 AL基复合材料 摩擦性能
下载PDF
原位TiC颗粒增强Fe-Cr-Ni基复合材料的高温蠕变行为 被引量:8
19
作者 陈俊 王执福 +1 位作者 边建华 王晓民 《金属学报》 SCIE EI CAS CSCD 北大核心 2001年第2期207-211,共5页
在973-1123 K和40-160MPa条件下研究了含5%, 10%, 16%(体积分数,下同)原位TiC颗粒增强的 Fe-26Cr-14Ni基复合材料的高温里蠕变性能.原位TiC颗粒明显改善了 Fe-26Cr-14N... 在973-1123 K和40-160MPa条件下研究了含5%, 10%, 16%(体积分数,下同)原位TiC颗粒增强的 Fe-26Cr-14Ni基复合材料的高温里蠕变性能.原位TiC颗粒明显改善了 Fe-26Cr-14Ni基复合材料的高温蠕变性能.含5% 和10%TiC复合材料的抗蠕变能力比基础合金增强.随着 TiC颗粒体积分数的增高,复合材料的蠕变速率降低而蠕变激活能和 临界应力提高.TEM显微组织观察表明,复合材料的蠕变主要是以局部位错攀移机制进行的.因此,所有蠕变速率可以由应力 指数为5的指数方程经归一化处理得到. 展开更多
关键词 FE-CR-NI基复合材料 高温蠕变 位错攀移机制 碳化钛颗粒增强
下载PDF
原位反应TiC颗粒对喷射沉积Al-20Si-5Fe合金微观组织的影响 被引量:3
20
作者 杨滨 王锋 +2 位作者 黄赞军 段先进 张济山 《北京科技大学学报》 EI CAS CSCD 北大核心 2001年第1期24-27,共4页
利用熔铸-原位反应喷射沉积成形技术制备了TiC颗粒增强A1-20Si-SFe复合材料.分析了内生TiC颗粒对喷射沉积Al-20Si-5Fe合金微观组织的影响.结果表明:喷射沉积A1-20SI-5Fe合金微观组织中常出... 利用熔铸-原位反应喷射沉积成形技术制备了TiC颗粒增强A1-20Si-SFe复合材料.分析了内生TiC颗粒对喷射沉积Al-20Si-5Fe合金微观组织的影响.结果表明:喷射沉积A1-20SI-5Fe合金微观组织中常出现脆性、针状的 A1-SI-Fe三元金属间化合物相.在 A1-20Si-5Fe合金中内生一定量的 TiC颗粒,有助于减小粗晶Si颗粒的尺寸、消除针状的 A1-Si--Fe三元金属间化合物相. 展开更多
关键词 原位反应 微观组织 碳化钛颗粒 快速凝固组织 喷射沉积成形 过共晶铝-硅合金 沉积态
下载PDF
上一页 1 2 下一页 到第
使用帮助 返回顶部