Corrosion performance of selective laser-melted equimolar CrCoNi medium-entropy alloy vs its cast counterpart in 3.5 wt% NaCl

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成果类型：

期刊论文

作者：

Zhang, Zhijian;Yuan, Tiechui*;Li, Ruidi*

通讯作者：

Yuan, Tiechui;Li, Ruidi

作者机构：

[Zhang, Zhijian; Li, Ruidi; Yuan, Tiechui; Li, RD] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.

[Zhang, Zhijian] Hengyang Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Key Lab Funct Organometall Mat,Univ Hunan Prov, Hengyang 421001, Peoples R China.

通讯机构：

[Yuan, TC; Li, RD] C

Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.

语种：

英文

关键词：

Chromium alloys;Chromium metallography;Chromium metallurgy;Cobalt alloys;Cobalt metallography;Cobalt metallurgy;Corrosion resistance;Corrosive effects;Entropy;Grain boundaries;Morphology;Nickel metallography;Nickel metallurgy;Sodium alloys;Sodium chloride;Surface morphology;Ternary alloys;X ray photoelectron spectroscopy;3.5 wt% NaCl solution;Corrosion behaviour;Corrosion performance;Different planes;Fusion pores;Grain boundary densities;Medium entropy;Metallurgical defects;Electrochemical corrosion

期刊：

Journal of Alloys and Compounds

ISSN：

0925-8388

年：

2021

卷：

864

页码：

158105

DOI：

10.1016/j.jallcom.2020.158105

基金类别：

The authors are grateful for the financial support from the National Key Research and Development Program of China (Grant No. 2016YFB1100101 ), Guizhou Science and the Technology Plan Project (Grant No. GHK support [2017] 2013 ), Hunan Science Fund for Distinguished Young Scholars ( 2020JJ2046 ), Huxiang Young talents ( 2018RS3007 ) and Hengyang Normal University Industrial Supported Project (Grant No. HXKJ201909 ) in this work.

机构署名：

本校为其他机构

院系归属：

化学与材料科学学院

摘要：

The corrosion behaviour of different planes of a selective laser-melted (SLM) equimolar CrCoNi medium-entropy alloy (MEA) was investigated and compared with its counterpart cast alloy in a 3.5 wt% NaCl solution. The microstructures of the SLM products were characterised, and electrochemical corrosion measurements, corrosion surface morphology observations, and X-ray photoelectron spectroscopy analyses were performed. Compared with the cast MEA, the SLM MEA has an inferior corrosion resistance for its more metallurgical defects and smaller grain...

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Corrosion performance of selective laser-melted equimolar CrCoNi medium-entropy alloy vs its cast counterpart in 3.5 wt% NaCl

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