摘要
通过非自耗真空电弧熔炼法制备了WMoNbTaTi_(x)(x=1.2、1.4、1.6、1.8、2.0)高熵合金,研究了不同Ti含量对合金组织及力学性能的影响。结果表明,WMoNbTaTi_(x)由BCC单相组成,合金微观组织为枝晶组织,组成元素存在偏析情况,当x=1.2-1.6时,合金晶粒尺寸随Ti含量增高而增大,当x=1.8时合金晶粒尺寸大幅减小,随后再次变大。随着Ti含量的提高,合金塑性呈现出先增加后减小的趋势,而强度则是先增小后增加,当x=1.8时达到最大值,随后再次减小。
In this work,WMoNbTaTi_(x)(x=1.2,1.4,1.6,1.8,2.0)high entropy alloy was prepared by non-consumable vacuum arc melting method,the alloy structure and properties were characterized to study the effect of Ti contents on the microstructure and mechanical properties of the alloy.The results indicate that WMoNbTaTi_(x)is composed of BCC singlephase structure,and the alloy microstructure is dendritic structure.There is segregation in the constituent elements.When x=1.2-1.6,the alloy grain size increases with the increase of Ti content.When x=1.8,the alloy grain size significantly decreases and then increases again.With the increase of Ti content,the plasticity of the alloy shows a trend of first increasing and then decreasing,while the strength first increases and then increases,reaching its maximum value at x=1.8,and then decreases again.
作者
许泽炀
王春雨
汪涛
XU Ze-yang;WANG Chun-yu;WANG Tao(Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)
出处
《世界有色金属》
2025年第9期4-6,共3页
World Nonferrous Metals
关键词
TI含量
高熵合金
组织结构
元素偏析
力学性能
Ti contents
high entropy alloy
organizational structure
elemental segregation
mechanical properties
作者简介
许泽炀,男,浙江余姚人,硕士研究生在读,研究方向:金属材料。
