期刊
SCRIPTA MATERIALIA
卷 120, 期 -, 页码 85-89出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2016.04.014
关键词
Multi-principal-element alloy; Alloy design; Cluster-plus-glue-atom model; Coherent precipitation; Mechanical properties
类别
资金
- National Natural Science Foundations of China [51171035, 11174044, 51131002]
- International Science & Technology Cooperation Program of China [2015DFR60370]
- US Department of Energy, Office of Fossil Energy, National Energy Technology Laboratory [DE-FE-0008855, DE-FE-0011194, DE-FE-0024054]
- US Army Research Office Project [W911NF-13-1-0438]
- US National Science Foundation [CMMI-1100080]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1100080] Funding Source: National Science Foundation
The present work reports a cuboidal B2-coherently-enhanced body-centered-cubic (BCC) alloy Al0.7CoCrFe2Ni with prominent tensile properties at both room (ultimate tensile strength sigma(b) = 1223 MPa and elongation to fracture delta = 7.9%) and high temperatures. This multi-principal-element alloy is developed out of a cluster formula [Al-M-14]Al-1 issued from the cluster-plus-glue-atom model of a BCC structure. Here, the [Al-M-14] cluster is centered by Al, surrounded by fourteen average atoms M = Co1/2Cr1/5Fe2/5Ni1/5, and glued with one Al atom. Its excellent mechanical properties are attributed to a superalloy-like microstructure, characterized by cuboidal B2 nanoprecipitates coherently embedded in the BCC matrix. (C) 2016 Elsevier Ltd. 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
分享论文
