3D Printed CoCrFeMnNi High-entropy Alloy: Microstructure and Mechanical Properties at Room and Cryogenic Temperatures

被引：0

作者：

Liu G. ^{[1
]}

Zhou S. ^{[1
]}

Yang H. ^{[1
]}

Chen P. ^{[1
]}

Ouyang X. ^{[1
]}

Yan M. ^{[1
]}

机构：

[1] Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen

来源：

Cailiao Daobao/Materials Reports | 2020年 / 34卷 / 11期

关键词：

Additive manufacturing; CoCrFeMnNi; Cryogenic mechanical properties; High-entropy alloy; Selective laser melting;

D O I：

10.11896/cldb.19080182

中图分类号：

学科分类号：

摘要：

High-entropy alloys (HEAs) have been considered as a new class of metallic alloys famous for their unique microstructures, comprehensive performances and wide applications. In this study, selective laser melting technology has been utilized to fabricate CoCrFeMnNi HEA. Phases, microstructure and mechanical properties of the as-built specimens at both room and cryogenic temperatures were investigated. The optimized printing parameters and the high relative density alloy with excellent tensile properties were derived. The tensile strength was 647 MPa at room temperature and 893.8 MPa at cryogenic temperature, respectively, demonstrating good combination of strength and ductility at cryogenic temperature. © 2020, Materials Review Magazine. All right reserved.

引用

页码：11076 / 11080

页数：4

共 37 条

[1] Yeh J W, Chen S K, Lin S J, Et al., Advanced Engineering Materials, 6, 5, (2004)
[2] Zhang Y, Zuo T T, Tang Z, Et al., Progress in Materials Science, 61, (2014)
[3] Wang Y, Yan M, Qiang Zhu, Et al., Acta Materialia, 143, (2018)
[4] Bu Y H., Information Recording Materials, 20, 5, (2019)
[5] Miracle D B, Senkov O N., Acta Materialis, 122, (2017)
[6] Liu Y, Li Y X, Chen X, Et al., Materials Reports, 20, 4, (2006)
[7] Cheng C Y, Yang T C, Zhong Y Z, Et al., Current Opinion in Solid State and Materials Science, 21, (2017)
[8] Otto F, Yang Y, Bei H, Et al., Acta Materialia, 61, (2013)
[9] Gali A, George E P., Intermetallics, 39, (2013)
[10] Gludovatz B, Hohenwarter A, Catoor D, Et al., Science, 345, 6201, (2014)

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