期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 479, 期 1-2, 页码 157-160出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2008.12.088
关键词
Casting; Precipitation; Scanning and transmission electron microscopy; Strain
Homogeneously spherical nanoprecipitates with a L1(2) ordered structure are observed in as-cast FCC Al0.3CoCrFeNi high entropy alloy, while their morphology changes to platelets after aging at 700 degrees C. The appearance of a yield drop and low work-hardening during tension reveals that these nanoprecipitates are coherent and have the characteristics of the Guinier-Preston zone. The 900 degrees C aged alloy displays micro-sized rod-shaped precipitates rich in Ni and Al instead of nanoprecipitates. There is no yield drop but high work-hardening occurs during tension. This rod-shaped phase has a B2 ordered structure and has the Kurdiumov-Sachs relationship with the FCC matrix. (c) 2008 Elsevier B.V. All rights reserved,
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