熔渗法制备W-Ce合金的探索研究  

Infiltration Preparation of W-Ce Alloy

作　　者：王欣 刘兴伟 刘天宇 王玲[2,3] 李树奎 熊宁[2,3] 刘金旭 Wang Xin;Liu Xingwei;Liu Tianyu;Wang Ling;Li Shukui;Xiong Ning;Liu Jinxu(School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;Advanced Technology and Materials Co.,Ltd,Beijing 100081,China;ATTL.Advanced Materials Co.,Ltd,Beijing 100094,China;School of Materials Science and Engineering,Shenzhen MSU-BIT University,Shenzhen 518172,China;National Key Laboratory of Science and Technology on Materials Under Shock and Impact,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学材料学院,北京100081 [2]安泰科技股份有限公司,北京100081 [3]安泰天龙钨钼科技有限公司,北京100094 [4]深圳北理莫斯科大学材料系,广东深圳518172 [5]北京理工大学冲击环境材料技术国家级重点实验室,北京100081

出　　处：《稀有金属材料与工程》2024年第5期1363-1370,共8页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(52001026);北京理工大学科技创新项目创新人才科技资助专项(2022CX01012);北京理工大学青年教师启动基金(XSQD202210006)。

摘　　要：以制备高密度和高热值的活性合金为目标,开展了W-Ce合金的探索研究。以W粉为原料,通过等静压压制制备多孔W骨架,随后对骨架进行烧结,提高骨架强度,最后通过液相熔渗Ce制备出了高密度W为骨架、活性Ce为填充相的W-Ce合金材料。研究了不同W骨架制备工艺得到的W-Ce合金的组织、性能、反应活性,结果表明:W-Ce合金致密度均在95%以上;合金相组成为W、Ce 2个单质相,未形成金属间化合物;动态压缩强度范围为621~905 MPa,动态压缩塑性在20%~30%之间;W-Ce合金具有较低的反应阈值。W-Ce alloys were researched to prepare high density and high calorific value active alloys.Porous W skeleton was prepared by isostatic pressing with W powder as raw material.Then the skeleton was sintered to improve the skeleton strength.Finally,W-Ce alloy with high density W as skeleton and active Ce as filling phase was prepared by liquid phase infiltration of Ce.The microstructure,properties and reactivity of W-Ce alloys prepared by different W skeleton preparation processes were studied.The results s how that the density of W-Ce alloys is above 95%.The phase composition of the alloy is W and Ce,and no intermetallic compound is formed.The dynamic compressive strength ranges from 621 MPa to 905 MPa,and the dynamic compressive plasticity ranges from 20%to 30%.The W-Ce alloy has a lower reaction threshold.

关 键 词：熔渗 W-Ce合金 微观组织 合金性能 

分 类 号：TG146.411[一般工业技术—材料科学与工程]