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Striped Non-Uniform Corrosion Behavior of Non-Equiatomic FeMnCoCr High-Entropy Alloy Prepared by Laser Melting Deposition in 0.1 M H2SO4 Solution

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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, Key Lab Funct Met Organ Cpds 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;Corrosive effects;Deposition;Electrochemical corrosion;Electrochemical impedance spectroscopy;Entropy;Grain boundaries;High-entropy alloys;Iron alloys;Iron metallography;Iron metallurgy;Manganese alloys;Manganese metallography;Manganese metallurgy;Melting;Morphology;Scanning electron microscopy;Sulfuric acid;Corrosion performance;Electrochemical impedance spectroscopy measurements;Electron backscatter diffraction technique;Grain boundary regions;Laser melting deposition;Metallurgical defects;Non-uniform corrosions;Open circuit potential;Localized corrosion
期刊:
Materials
ISSN:
1996-1944
年:
2020
卷:
13
期:
23
页码:
1-17
基金类别:
This research received no external funding.
机构署名:
本校为其他机构
摘要:
The corrosion behavior of the Fe50Mn30Co10Cr10 high-entropy alloy (HEA) manufactured via laser melting deposition (LMD) was investigated using open circuit potential, potentiodynamic polarization, and electrochemical impedance spectroscopy measurements. The microstructure and morphology of LMD samples before and after the electrochemical tests were compared using X-ray diffraction, optical microscopy, scanning electron microscopy, and electron backscatter diffraction techniques. After the corrosion tests, a striped morphology was observed on th...

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