Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying

Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying

Undeformed face-centred cubic (FCC) high-entropy alloys (HEAs) always possess excellent plasticity but low hardness. In this work, Al alloying on the surface of a CrCoFeNi FCC HEA is realized by laser alloying technique. An Al1.5CoCrFeNi body-centred cubic (BCC) HEA is in-situ generated on the surfa...

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Bibliographic Details
Main Authors: Shuyuan Gou, Shunchao Li, Hailei Hu, Youtong Fang, Jiabin Liu, Weiping Dong, Hongtao Wang
Format: Article
Language:English
Published: Taylor & Francis Group 2021-10-01
Series:Materials Research Letters
Subjects:
surface hardening
laser alloying
crcofeni
high-entropy alloy
Online Access:http://dx.doi.org/10.1080/21663831.2021.1968524
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spelling doaj-1f809f7a1acc4ec6a8fe6512b20ea5162021-09-06T14:06:26ZengTaylor & Francis GroupMaterials Research Letters2166-38312021-10-0191043744410.1080/21663831.2021.19685241968524Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloyingShuyuan Gou0Shunchao Li1Hailei Hu2Youtong Fang3Jiabin Liu4Weiping Dong5Hongtao Wang6Zhejiang UniversityZhejiang UniversityZhejiang Normal UniversityZhejiang UniversityZhejiang UniversityZhejiang Normal UniversityZhejiang UniversityUndeformed face-centred cubic (FCC) high-entropy alloys (HEAs) always possess excellent plasticity but low hardness. In this work, Al alloying on the surface of a CrCoFeNi FCC HEA is realized by laser alloying technique. An Al1.5CoCrFeNi body-centred cubic (BCC) HEA is in-situ generated on the surface of the FCC HEA. The well-bonding BCC HEA layer possesses a hardness as high as 536 HV. The hard surface results in a much lower wear rate of the Al-alloyed specimen than the pristine specimen. This study provides a simple strategy to harden the FCC HEAs by in-situ formation of BCC HEA through laser alloying.http://dx.doi.org/10.1080/21663831.2021.1968524surface hardeninglaser alloyingcrcofenihigh-entropy alloy
collection DOAJ
language English
format Article
sources DOAJ
author Shuyuan Gou
Shunchao Li
Hailei Hu
Youtong Fang
Jiabin Liu
Weiping Dong
Hongtao Wang
spellingShingle Shuyuan Gou
Shunchao Li
Hailei Hu
Youtong Fang
Jiabin Liu
Weiping Dong
Hongtao Wang
Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying
Materials Research Letters
surface hardening
laser alloying
crcofeni
high-entropy alloy
author_facet Shuyuan Gou
Shunchao Li
Hailei Hu
Youtong Fang
Jiabin Liu
Weiping Dong
Hongtao Wang
author_sort Shuyuan Gou
title Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying
title_short Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying
title_full Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying
title_fullStr Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying
title_full_unstemmed Surface hardening of CrCoFeNi high-entropy alloys via Al laser alloying
title_sort surface hardening of crcofeni high-entropy alloys via al laser alloying
publisher Taylor & Francis Group
series Materials Research Letters
issn 2166-3831
publishDate 2021-10-01
description Undeformed face-centred cubic (FCC) high-entropy alloys (HEAs) always possess excellent plasticity but low hardness. In this work, Al alloying on the surface of a CrCoFeNi FCC HEA is realized by laser alloying technique. An Al1.5CoCrFeNi body-centred cubic (BCC) HEA is in-situ generated on the surface of the FCC HEA. The well-bonding BCC HEA layer possesses a hardness as high as 536 HV. The hard surface results in a much lower wear rate of the Al-alloyed specimen than the pristine specimen. This study provides a simple strategy to harden the FCC HEAs by in-situ formation of BCC HEA through laser alloying.
topic surface hardening
laser alloying
crcofeni
high-entropy alloy
url http://dx.doi.org/10.1080/21663831.2021.1968524
work_keys_str_mv AT shuyuangou surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
AT shunchaoli surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
AT haileihu surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
AT youtongfang surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
AT jiabinliu surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
AT weipingdong surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
AT hongtaowang surfacehardeningofcrcofenihighentropyalloysviaallaseralloying
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