热氢处理对(TiB,TiC)/Ti-6Al-4V复合材料显微组织和力学性能的影响  

Effect of Thermo Hydrogen Treatment on Microstructure and Mechanical Properties of(TiB,TiC)/Ti-6Al-4V Composite

作　　者：宋杰[1] 王立强[1] 覃继宁[1] 吕维洁[1] 张荻[1] 侯红亮[2] 

机构地区：[1]上海交通大学金属基复合材料国家重点实验室,上海200240 [2]北京航空制造工程研究所,北京100024

出　　处：《机械工程材料》2012年第5期65-68,共4页Materials For Mechanical Engineering

基　　金：国家重点基础研究发展计划项目(2007CB613806);国家自然科学基金资助项目(50871066)

摘　　要：对原位反应制备的(TiB,TiC)/Ti-6Al-4V复合材料进行热氢处理,研究了不同状态下复合材料的显微组织和力学性能。结果表明:置氢处理降低了复合材料的相变温度,提高了β相的含量;氢含量为0和0.15%的复合材料热锻后获得α和β相,氢含量为0.6%的复合材料获得α′′马氏体和β相;除氢处理提高了复合材料在室温和400℃下的屈服强度和抗拉强度。The thermo hydrogen treatment was performed on （TiB, TiC）/Ti-6AL4V composites prepared in situ reaction, and the microstructure and mechanical properties of the composite in different states were studied. The results show that hydrogenation decreased the phase transformation temperature and increased the β phase content, α and β phases were obtained in the composite with 0 and 0. 15wt% H after hot-forging, while α″ martensite and β phase was obtained in the composite with 0. 6wt% H. Dehydrogenation treatment increased the yield strength and tensile strength of the composite at room temperature and at 400 ℃.

关 键 词：钛基复合材料 热氢处理 显微组织 力学性能 

分 类 号：TG146.1[一般工业技术—材料科学与工程]