A combinatorial assessment of AlxCrCuFeNi2(0 < x < 1.5) complex concentrated alloys: Microstructure, microhardness, and magnetic properties

被引：230
作者：
Borkar, T. [1 ,6 ]
Gwalani, B. [1 ]
Choudhuri, D. [1 ]
Mikler, C. V. [1 ]
Yannetta, C. J. [1 ]
Chen, X. [2 ]
Ramanujan, R. V. [2 ]
Styles, M. J. [3 ]
Gibson, M. A. [3 ,4 ,5 ]
Banerjee, R. [1 ]
机构：
[1] Univ North Texas, Dept Mat Sci & Engn, Denton, TX 76207 USA
[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[3] CSIRO Mfg, Private Bag 10, Clayton, Vic 3169, Australia
[4] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia
[5] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Carlton, Vic 3053, Australia
[6] Cleveland State Univ, Dept Mech Engn, Cleveland, OH 44115 USA
来源：
ACTA MATERIALIA | 2016年 / 116卷
基金：
新加坡国家研究基金会;
关键词：
High entropy alloys (HEAs); Alloy design; High-throughput; Laser engineered net shaping; Functional properties; HIGH-ENTROPY ALLOY; SOLID-SOLUTION PHASE; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; CRYSTAL-STRUCTURE; WEAR BEHAVIOR; LOW-DENSITY; AS-CAST; MULTICOMPONENT; STABILITY;
D O I：
10.1016/j.actamat.2016.06.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This article discusses a novel combinatorial approach for assessing composition-microstructure-microhardness-magnetic property relationships, using laser deposited compositionally graded AlxCrCuFeNi2 (0 < x < 1.5) complex concentrated alloys as a candidate system. The composition gradient has been achieved from CrCuFeNi2 to Al1.5CrCuFeNi2 over a length of similar to 25 mm, deposited using the laser engineered net shaping process from a blend, of elemental powders. With increasing Al content, there was a gradual change from a fcc-based microstructure (including the ordered L1(2) phase) to a bcc-based microstructure (including the ordered B2 phase), accompanied with an increase in microhardness. Interestingly, with increasing paramagnetic Al content, saturation magnetization as well as coercivity increases and reaches a maximum value when x =1.3, indicating the tunability of magnetic properties by a paramagnetic element in this alloy system. Such graded alloys are highly attractive candidates for investigating the influence of systematic compositional changes on microstructural evolution and concurrent physical and mechanical properties in complex concentrated alloys or high entropy alloys. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：63 / 76
页数：14
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