期刊
INTERMETALLICS
卷 145, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2022.107539
关键词
High-entropy alloys; Microstructure; Mechanical properties; Strengthening mechanisms; L2(1) precipitates
资金
- National Science Foundation of China [11932004]
Introducing the second phase into high-entropy alloy through composition design is an effective strategy to improve its mechanical properties. In this study, a novel Fe35Cr35Ni15Al12Ti3 HEA was successfully designed and prepared. The HEA exhibited outstanding mechanical properties, attributed to the precipitation strengthening and solid-solution strengthening.
Introducing the second phase into high-entropy alloy through composition design is an effective strategy to further improve its mechanical properties. In this work, a novel Fe35Cr35Ni15Al12Ti3 HEA was successfully designed and prepared with arc-melting method. Its microstructure, phase constitution, mechanical properties, and strengthening mechanisms were systematically investigated. A uniform distribution of high-density semi coherent L2(1) and coherent B2 precipitates in the BCC matrix was achieved. Significantly, the HEA possesses outstanding mechanical properties, with true compressive yield strength of 1308.0 MPa, maximum compressive strength of 1803.8 MPa and maximum compressive strain of 86.8%, which are much higher than most similar HEAs reported previously. The excellent mechanical properties could be ascribed to the precipitation strengthening and solid-solution strengthening induced by fine B2 and uniform distribution of L2(1) precipitates.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据