Microstructure and mechanical properties evolution of B1.5(CrFeNi)98.5 medium-entropy alloy during recrystallization annealing

被引：0

作者：

Yang, Baiting ^{[1
]}

Zhou, Jilan ^{[1
]}

Zhao, Panpan ^{[1
]}

Yu, Genghao ^{[1
]}

Ma, Lili ^{[1
]}

Chen, Ming ^{[1
]}

机构：

[1] Qinghai Univ, Sch Mech Engn, Xining 810016, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2025年

关键词：

medium-entropy alloys; recrystallization annealing; precipitate; microstructure; mechanical properties; STABILITY; BEHAVIOR;

D O I：

10.1177/02670836251317163

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A cold-rolled B1.5(CrFeNi)98.5 medium-entropy alloy was annealed at 600-1000 degrees C for 1 h to investigate the microstructure and mechanical properties evolution duding recrystallization annealing process. The as-cast alloy exhibited an FCC + Cr2B dual-phase structure and dendritic microstructure. The annealed alloy exhibited a typical bimodal grain structure. Massive BCC-structured precipitate with a nano-scale formed in FCC pahse, whose content reached the peak around 800 degrees C, and then almost disappeared at 1000 degrees C. The yield strength of the alloy reduced from 1225 MPa in cold-rolling state to 330 MPa when annealed at 1000 degrees C, and the elongation raised from 2.4% to 33.8%. The alloy annealed at 800 degrees C displayed a good strength-plasticity balance with a yield strength of 601 MPa and an elongation of 20%.

引用

页数：9

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