Ta含量对高能量速率锻造的W-Ta合金力学性能的影响

doi:10.16568/j.0254-6086.202502003

核工业西南物理研究院 ›› 2025, Vol. 45 ›› Issue (2): 142-148.DOI: 10.16568/j.0254-6086.202502003

Ta含量对高能量速率锻造的W-Ta合金力学性能的影响

陈潇，封范，王建豹，练友运，刘翔

(核工业西南物理研究院，成都 610041)

收稿日期:2022-03-07 修回日期:2023-05-12 出版日期:2025-06-15 发布日期:2025-06-13
通讯作者: 刘翔(1963-)，男，研究员，博士生导师，从事聚变堆面向等离子体材料和部件及等离子体-壁相互作用。
作者简介:陈潇(1996-)，女，硕士研究生，从事聚变堆面向等离子体先进钨基材料研究。
基金资助:
国家自然科学基金项目(11975092)；2020年中核集团青年英才项目(菁英人才)；西物创新项目(202001XWCXRZ002、202101XWCXRZ002)

Effect of Ta content on mechanical properties of W-Ta alloy in high energy rate forging

CHEN Xiao, FENG Fan, WANG Jian-bao, LIAN You-yun, LIU Xiang

(Southwestern Institute of Physics, Chengdu 610041)

Received:2022-03-07 Revised:2023-05-12 Online:2025-06-15 Published:2025-06-13

摘要/Abstract

摘要：

通过高能球磨制粉、氢气保护烧结和高能量速率锻造(HERF)制备了Ta含量为0.2~1.0 wt.%的W-Ta合金块体。采用电子背散射衍射(EBSD)和扫描电子显微镜(SEM)对材料的微观组织进行了分析，利用维氏硬度计和万能拉伸试验机对材料的硬度和拉伸性能进行了测试。结果表明，通过高能量速率锻造获得了接近全致密的W-Ta块体合金材料，在锻造面呈现明显的<100>和<111>择优取向；随着Ta含量的增加，晶粒尺寸明显细化，材料的硬度和抗拉强度则呈增加趋势；高能量速率锻造的W-Ta合金在300℃时表现出明显的拉伸韧性，其中W-0.5 wt.% Ta具有最优的综合力学性能，在300℃时抗拉强度达到900 MPa，应变接近19%。

关键词: W-Ta合金, 氢气烧结, 高能量速率锻造, 拉伸性能

Abstract:

Bulk W-Ta alloys with Ta contents ranging from 0.2 to 1.0 wt.% were prepared through high-energy ball milling for powder preparation, sintering under hydrogen atmosphere and high energy rate forging (HERF). The microstructure of the materials was analyzed by electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM). The hardness and tensile properties of the materials were tested using a Vickers hardness tester and a universal tensile testing machine. The results show that near fully dense bulk W-Ta alloy materials were obtained through high energy rate forging, and obvious <100> and <111> preferred orientations were presented on the forging surface. With the increase of Ta content, the size of grain decreases obviously, the hardness and tensile strength of the material showed an increasing trend. The W-Ta alloy prepared by high energy rate forging exhibited obvious tensile ductility at 300℃. Among them, W-0.5 wt.% Ta had the best comprehensive mechanical properties, with a tensile strength reaching 900 MPa and a strain approaching 19% at 300℃.

Key words: W-Ta alloys, Hydrogen sintering, High-energy-rate forging, Tensile properties

中图分类号:

TL62⁺7

陈潇, 封范, 王建豹, 练友运, 刘翔. Ta含量对高能量速率锻造的W-Ta合金力学性能的影响[J]. 核工业西南物理研究院, 2025, 45(2): 142-148.

CHEN Xiao, FENG Fan, WANG Jian-bao, LIAN You-yun, LIU Xiang. Effect of Ta content on mechanical properties of W-Ta alloy in high energy rate forging[J]. Nuclear Fusion and Plasma Physics, 2025, 45(2): 142-148.

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Ta含量对高能量速率锻造的W-Ta合金力学性能的影响

Effect of Ta content on mechanical properties of W-Ta alloy in high energy rate forging

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