李阔,刘亮,刘柏宇,曹轩,王硕,崔岩,韦锋,张越

• 1:辽宁工业大学材料科学与工程学院

摘要(Abstract)：

采用X射线衍射仪(XRD)、扫描电镜(SEM)、显微硬度仪及万能试验机等研究了在950℃再结晶退火不同时间对Fe_2CoNiV_(1.3)高熵合金微观组织及力学性能的影响。结果表明：退火后合金基体仍保持面心立方(FCC)晶体结构，但晶界处析出了少量σ相；随着退火时间的延长，合金的晶粒尺寸逐渐增大，孪晶数量增加，完全再结晶的晶粒比例显著提高；虽然再结晶退火后合金的硬度均低于轧制态合金，但退火后合金的综合力学性能较为优秀，尤其是在950℃退火60 min后，其极限抗拉强度与伸长率发分别为857 MPa和54%,再结晶退火有效改善了合金的强度和塑性平衡。

关键词(KeyWords)： 高熵合金;再结晶退火;微观组织;晶体结构;力学性能

Abstract:

Keywords:

基金项目(Foundation): 辽宁省兴辽英才项目(XLYC2203060)

作者(Author): 李阔,刘亮,刘柏宇,曹轩,王硕,崔岩,韦锋,张越

DOI: 10.13289/j.issn.1009-6264.2025-zt08

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