机械合金化与热等静压制备Cu-Cr-Mo合金  

Cu-Cr-Mo alloys prepared by mechanical alloying and hot isostatic pressing

作　　者：王思伦 崔子振[1] 刘全义 谢飞[1] 林岩松[1] WANG Silun;CUI Zizhen;LIU Quanyi;XIE Fei;LIN Yansong(Aerospace Research Institute of Materials&Processing Technology,Beijing 100076,China;Aerospace Long March Arimt Science and Technology Co.,Ltd.,Tianjin 300475,China)

机构地区：[1]航天材料及工艺研究所,北京100076 [2]航天长征睿特科技有限公司,天津300475

出　　处：《粉末冶金技术》2023年第5期475-480,共6页Powder Metallurgy Technology

摘　　要：通过机械混合和机械合金化工艺制备Cu-9.3Cr-9.3Mo(质量分数)粉末,并利用热等静压压制Cu-Cr-Mo合金。采用X射线衍射和激光粒度分析等方法表征了粉末物相、组织分布和粒度;通过对相对密度、硬度、电导率等性能检测和微观组织观察分析了合金性能。结果表明,机械合金化过程可诱导Cu-Cr-Mo过饱和固溶体形成,合金的晶格畸变程度提高,晶粒尺寸和粉末颗粒尺寸减小,制备的合金块材硬度高,相对密度和电导率理想,综合性能优异。The Cu-9.3Cr-9.3Mo(mass fraction)powders were prepared by mechanical mixing and mechanical alloying,respectively,and the Cu-Cr-Mo alloys were pressed by hot isostatic pressing.The phase composition,organizational structure,and particle size of the powders were characterized by X-ray diffraction and laser particle size analysis.The relative density,hardness,conductivity,and microstructure of the alloys were measured.The results show that,the mechanical alloying process can induce the formation of Cu-Cr-Mo supersaturated solid solution,improve the degree of lattice distortion,and reduce the grain size and powder particle size.The prepared alloy blocks by mechanical alloying have the high hardness,ideal relative density,and electrical conductivity,showing the excellent comprehensive properties.

关 键 词：Cu-Cr-Mo合金 机械混合 机械合金化 过饱和固溶体 热等静压 

分 类 号：TF125[冶金工程—粉末冶金]