摘要
为了获得高质量的W/CuCrZr复合材料,采用真空熔铸法制备了具有燕尾槽型结构的W/CuCrZr复合板材。通过光学显微镜、扫描电镜及EDS能谱分析、显微硬度仪等设备,系统分析了W/CuCrZr复合板结合界面的微观结构特征及力学性能。结果表明:在真空度为10^(-4)Pa,加热温度为1100~1200℃真空条件下熔铸制备的W/CuCrZr复合材料,结合界面以平直结构特征为主,界面结合紧密,无明显的缺陷生成。在结合界面处,元素发生明显的互扩散现象,并有明显的带状熔融扩散层生成,扩散层宽度为6~8μm。W/CuCrZr复合板钨侧的维氏硬度较母材有所提高,而CuCrZr侧的维氏硬度较母材有所降低。
In order to obtain high quality W/CuCrZr composites,the W/CuCrZr composite plates with dovetail groove structure were fabricated by vacuum melting and casting.The microstructure characteristics and mechanical properties of W/CuCrZr joining interface were systematically analyzed by optical microscope,scanning electron microscope coupled with EDS analysis,hardness tester and other equipment.The results show that the joining interface of W/CuCrZr composite prepared by melting and casting under vacuum conditions of 10^(-4) Pa and heating temperature of 1100-1200℃presents flat and straight structure.The W and CuCrZr are tightly bonded at the interface without obvious defects.At the joining interface,the phenomenon of elemental interdiffusion occurs,there by forming a banded melting diffusion layer with the width of 6-8μm.The Vickers hardness on the tungsten side of the W/CuCrZr composite plate is improved compared with that of the base material,where as that on CuCrZr side is lower than that of the base metal.
作者
孙玉玲
马宏昊
沈兆武
罗宁
Sun Yuling;Ma Honghao;Shen Zhaowu;Luo Ning(CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei 230026,China;PLA Army Academy of Artillery and Air Defense,Hefei 230031,China;State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230026,China;School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2023年第8期2844-2850,共7页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51874267,12072363)
中央高校基本科研业务费专项资金(WK2480000008,WK2320000049)
安徽省科技重大专项(202003a05020035)。
