Effect of Al Content on Microstructure and Properties of AlxMoNbTiV RCCA's Alloys

被引：3
|
作者：
Lacour-Gogny-Goubert, Antoine [1 ]
Zhao-Huvelin, Zhao [1 ]
Bachelier-Locq, Agnes [1 ]
Guillot, Ivan [2 ]
Denquin, Anne [1 ]
机构：
[1] Off Natl Etud & Rech Aerosp, Dept Mat & Struct, 29 Ave Div Leclerc, F-92320 Chatillon, France
[2] Univ Paris Est, ICMPE, CNRS, UMR 7182,UPEC, F-94329 Thiais, France
来源：
THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS | 2018年 / 941卷
关键词：
High entropy Alloys; Compositionally complex Alloys; Refractory alloys; Microstructure; Scanning electron microscopy; Transmission electron microscopy; X-Ray-Diffraction; Heat Treatment; Mechanical properties; ENTROPY; ALUMINUM;
D O I：
10.4028/www.scientific.net/MSF.941.1111
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The objective of this study is the evaluation of high entropy alloys for aeroengines applications up to 1000 degrees C. AlxNbMoTiV alloys with 10 and 20 at.% Al have been produced by arc melting. As-cast microstructure and phase transformations during heat treatments have been investigated through SEM, DRX and TEM, revealing the possibility of homogenization at 1400 degrees C and the stability of the BCC structure at 1000 degrees C and 800 degrees C for both alloys. Mechanical properties have been evaluated through micro-hardness and compression tests up to 800 degrees C. It appears that, although both alloys show a similar microstructure and hardness evolution with heat treatment, the Alloy containing 10 at.% of Al show a higher yield strength at room temperature and 800 degrees C, related to the brittle character of the alloy containing 20 at.% of Al.
引用
收藏
页码：1111 / 1116
页数：6
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