Aqueous Corrosion Behavior of Cast CoCrFeMnNi Alloy

Pathak S.; Kumar N.; Mishra R. S.; De P. S.

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Aqueous Corrosion Behavior of Cast CoCrFeMnNi Alloy

机译：铸造COCRFEMNNI合金的水性腐蚀行为

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CoCrFeMnNi high-entropy alloy demonstrates good mechanical properties and can be further strengthened by thermomechanical processes. A sample alloy prepared by vacuum casting in a graphite mold was further investigated for its corrosion resistance. One-millimeter thin strips of cast alloy were used to investigate its corrosion behavior at room temperature. Linear potentiodynamic tests of the alloy in sodium chloride solution confirmed uniform corrosion property comparable to stainless steel AISI 304. However, a positive cyclic hysteresis loop indicated susceptibility to pitting corrosion. In sodium hydroxide solution, metastable pit formation was observed, while sulfuric acid solution passivated the alloy. In both cases, the alloy did not show any spontaneous pitting tendency.

机译：COCRFEMNNI高熵合金显示出良好的机械性能，可以通过热机械过程进一步加强。进一步研究了石墨模具中真空铸造制备的样品合金以进行耐腐蚀性。使用单毫米薄的铸造合金用于研究室温下的腐蚀行为。氯化钠溶液中合金的线性电位动力学试验证实与不锈钢AISI 304相当的均匀腐蚀性。然而，正环状滞后回路表明对蚀腐蚀的敏感性。在氢氧化钠溶液中，观察到亚稳凹坑形成，而硫酸溶液钝化合金。在这两种情况下，合金没有显示出任何自发点蚀倾向。

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来源
《Journal of Materials Engineering and Performance》 |2019年第10期|共8页
作者
Pathak S.; Kumar N.; Mishra R. S.; De P. S.;
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作者单位

Indian Inst Technol Sch Minerals Met &

Mat Engn Bhubaneswar India;

North Carolina State Univ Dept Nucl Engn Raleigh NC 27695 USA;

Univ North Texas Dept Mat Sci &

Engn Denton TX 76203 USA;

Indian Inst Technol Sch Minerals Met &

Mat Engn Bhubaneswar India;

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原文格式 PDF
正文语种 eng
中图分类金属学与金属工艺;工程材料学;
关键词
alloy; cyclic voltammetry; passivity; pitting corrosion;

机译：合金;循环伏安法;被动;点腐蚀;

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专利

1. Aqueous Corrosion Behavior of Cast CoCrFeMnNi Alloy [J] . Pathak S., Kumar N., Mishra R. S., Journal of Materials Engineering and Performance . 2019,第10期

机译：铸造COCRFEMNNI合金的水性腐蚀行为
2. Comparative corrosion behavior of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy and CoCrFeMnNi high-entropy alloy in 3.5 wt% NaCl solution [J] . Lu Che-Wei, Lu Yi-Sheng, Lai Zen-Hao, Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2020,第1期

机译：3.5wt％NaCl溶液中Fe50mN30Co10CR10双相高熵合金和COCRFEMENNI高熵合金的比较腐蚀行为
3. Transformation between localized and general corrosion behavior of die‐cast AZ91D magnesium alloy in 3.5?wt% NaCl aqueous solutions [J] . Zhang Shaohua, Hou Lifeng, Du Huayun, Materials and Corrosion . 2019,第12期

机译：3.5中压铸AZ91D镁合金局部化与一般腐蚀行为的转化.wt％NaCl水溶液
4. Corrosion Behavior of CoCrFeMnNi High-Entropy Alloys (HEAs) Under Acidic Aqueous Conditions [C] . Alvaro Rodriguez, Joseph H. Tylczak, Margaret Ziomek-Moroz Meeting of the Electrochemical Society . 2017

机译：COCRFEMNNI高熵合金（HEAS）在酸性含水条件下的腐蚀行为
5. Corrosion behavior of as-cast silicon carbide particulate/aluminum alloy metal-matrix composites. [D] . Buarzaiga, Mohamed M. 1994

机译：铸态碳化硅颗粒/铝合金金属基复合材料的腐蚀行为。
6. Effect of Cast Defects on the Corrosion Behavior and Mechanism of UNS C95810 Alloy in Artificial Seawater [O] . Xu Zhao, Yuhong Qi, Jintao Wang, 2020

机译：铸造缺陷对UNS C95810合金在人工海水中的腐蚀行为及其机理的影响
7. Corrosion Behavior of an Equiatomic CoCrFeMnNi High-Entropy Alloy- a Comparison Between Selective Laser Melting and Cast [O] . Haoping Peng, Zehuan Lin, Ruidi Li, 2020

机译：赤素COCRFemnni高熵合金的腐蚀行为 - 选择性激光熔化与铸造的比较
8. Stress Corrosion Cracking Behavior of Alloy 22 in Multi-Ionic Aqueous Environments [R] . King, K. J., Estill, J. C., Rebak, R. B. 2002

机译：多离子水环境中合金22的应力腐蚀开裂行为

Aqueous Corrosion Behavior of Cast CoCrFeMnNi Alloy

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