The synergetic effect of TaC particles and Re alloy on microstructure and mechanical properties in tungsten alloy

被引：10
作者：
Liu, Ruxia [1 ]
Zhao, Wei [1 ]
Tian, Ye [1 ]
Zhang, Jian [1 ]
Luo, Guoqiang [1 ]
Shen, Qiang [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 28卷
基金：
中国国家自然科学基金;
关键词：
W-Re-TaC composites; Microstructure; Mechanical properties; Synergetic effect; ATOM-PROBE TOMOGRAPHY; W-RE; DEFORMATION; DEPENDENCE; SIZE;
D O I：
10.1016/j.jmrt.2024.01.035
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
TaC enhancement particles and Re alloy were used to improve the strength and ductility of the tungsten alloy. The synergetic effect of TaC addition and Re alloying on relative density, microstructure, and mechanical properties of tungsten alloy were investigated. The results indicated that a W-based composite with 2.5 wt% TaC addition and 25 wt% Re alloying exhibited yield stress of 1.23 GPa, the ultimate compressive stress of 2.86 GPa, bending strength of 1.30 GPa and strain capacity of 42 %, which was increased by 114 %, 140 %, 226 %, and 133 % than those of pure W. Further analysis revealed that the grain boundary purification, grain refinement, and kinematic strain gradient contribution because of the addition of TaC, lattice distortion, and the generation of dislocations because of the addition of Re alloying are the main strengthening mechanisms in W-TaC-Re composite.
引用
收藏
页码：4639 / 4646
页数：8
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