宇航材料工艺2024，Vol.54Issue(5)：31-39,9.DOI:10.12044/j.issn.1007-2330.2024.05.004
粉末特性对W-Ti[w(Ti)=10％]合金致密度和组织的影响
Effect of Powder Characteristics on Density and Microstructure of W-Ti[w(Ti)=10％]Alloy
杨亚飞 1姚草根 1吕宏军 1谢飞 1孟烁1
作者信息
- 1. 航天材料及工艺研究所,北京 100076
- 折叠
摘要
Abstract
W-Ti[w(Ti)=10％]alloy was prepared,and the influence of powder purity and W powder size on the density and microstructure of W-Ti[w(Ti)=10％]alloy was studied.It is found that the higher the purity of powder,the higher the density of W-Ti[w(Ti)=10％]alloy,and the lower the Ti rich phase proportion.The W-Ti[w(Ti)=10％]alloy with 3N purity will retain pure Ti,and the proportion of Ti-rich phase is 31.28％.The W-Ti[w(Ti)=10％]alloy with 4N and 4N5 purity does not have pure Ti,and the proportion of Ti-rich phase is 28.41％and 21.67％,respectively.The influence of W powder particle size is reflected in two aspects:the larger the W powder particle size,the better the mixing effect with Ti powder,the more conducive to diffusion;but the smaller the specific surface area,the less conducive to diffusion.With the increase of W particle size,the Ti-rich phase content of W-Ti[w(Ti)=10％]alloy decreases first and then increases.In this experiment,when the particle size of W powder is 4～5 μm and the particle size of Ti powder is 44 μm,the microstructure properties of W-Ti[w(Ti)=10％]alloy are the best,and the proportion of Ti-rich phase is 28.79％.关键词
W-Ti[w(Ti)=10％]合金/W粉/粒度/富Ti相Key words
W-Ti[w(Ti)=10％]/W powder/Particle size/Ti-rich phase分类
金属材料引用本文复制引用
杨亚飞,姚草根,吕宏军,谢飞,孟烁..粉末特性对W-Ti[w(Ti)=10％]合金致密度和组织的影响[J].宇航材料工艺,2024,54(5):31-39,9.
