质地、晶界构成和钼分区对脉冲电沉积镍钼镀层的腐蚀和氢渗透行为的影响

IF 3 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materialia Pub Date : 2024-11-05 DOI:10.1016/j.mtla.2024.102284
Sunando Banerjee, Akhand Pratap Singh, G. Mohan Kumar, Chandan Srivastava
{"title":"质地、晶界构成和钼分区对脉冲电沉积镍钼镀层的腐蚀和氢渗透行为的影响","authors":"Sunando Banerjee,&nbsp;Akhand Pratap Singh,&nbsp;G. Mohan Kumar,&nbsp;Chandan Srivastava","doi":"10.1016/j.mtla.2024.102284","DOIUrl":null,"url":null,"abstract":"<div><div>Microstructural evolution, electrochemical corrosion and hydrogen permeation in pulse electrodeposited Ni-Mo coatings (2, 4, 8, and 11wt% Mo) were investigated. Electrochemical impedance spectroscopy and potentiodynamic polarization measurements revealed improved corrosion resistance at an optimum Mo content. The corrosion current density <em>i<sub>corr</sub></em> and polarization resistance <em>R<sub>p</sub></em> values obtained were 13.8 μA/cm<sup>2</sup> and 1745 Ωcm<sup>2</sup> respectively for pure Ni coating while the <em>i<sub>corr</sub></em> and <em>R<sub>p</sub></em> values obtained were 1.7 μA/cm<sup>2</sup> and 5406 Ωcm<sup>2</sup> respectively for Ni-4wt% Mo coating. Further, increase in the Mo content beyond 4 wt% increased the corrosion rate. Nevertheless, corrosion resistance of Ni-Mo coatings was found to be higher than the pure Ni coating. Ni-Mo coatings contained relatively Mo-enriched clusters in a solid solution matrix. The highest corrosion resistance of Ni-4wt% Mo coating was due to lower energy (001) and (111) textures, lower energy grain boundary constitution, and low coating strain. In Ni-4wt% Mo coating, Mo-enriched Ni-Mo nanoclusters inhibited hydrogen passage by providing a torturous path. In contrast, a high fraction of high-angle grain boundaries (compared to pure Ni coating) facilitated hydrogen permeation leading to a similar extent of hydrogen permeation through pure Ni and Ni-4wt% Mo coatings.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102284"},"PeriodicalIF":3.0000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of texture, grain boundary constitution, and molybdenum partitioning on corrosion and hydrogen permeation behavior of pulse electrodeposited Ni-Mo coatings\",\"authors\":\"Sunando Banerjee,&nbsp;Akhand Pratap Singh,&nbsp;G. Mohan Kumar,&nbsp;Chandan Srivastava\",\"doi\":\"10.1016/j.mtla.2024.102284\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Microstructural evolution, electrochemical corrosion and hydrogen permeation in pulse electrodeposited Ni-Mo coatings (2, 4, 8, and 11wt% Mo) were investigated. Electrochemical impedance spectroscopy and potentiodynamic polarization measurements revealed improved corrosion resistance at an optimum Mo content. The corrosion current density <em>i<sub>corr</sub></em> and polarization resistance <em>R<sub>p</sub></em> values obtained were 13.8 μA/cm<sup>2</sup> and 1745 Ωcm<sup>2</sup> respectively for pure Ni coating while the <em>i<sub>corr</sub></em> and <em>R<sub>p</sub></em> values obtained were 1.7 μA/cm<sup>2</sup> and 5406 Ωcm<sup>2</sup> respectively for Ni-4wt% Mo coating. Further, increase in the Mo content beyond 4 wt% increased the corrosion rate. Nevertheless, corrosion resistance of Ni-Mo coatings was found to be higher than the pure Ni coating. Ni-Mo coatings contained relatively Mo-enriched clusters in a solid solution matrix. The highest corrosion resistance of Ni-4wt% Mo coating was due to lower energy (001) and (111) textures, lower energy grain boundary constitution, and low coating strain. In Ni-4wt% Mo coating, Mo-enriched Ni-Mo nanoclusters inhibited hydrogen passage by providing a torturous path. In contrast, a high fraction of high-angle grain boundaries (compared to pure Ni coating) facilitated hydrogen permeation leading to a similar extent of hydrogen permeation through pure Ni and Ni-4wt% Mo coatings.</div></div>\",\"PeriodicalId\":47623,\"journal\":{\"name\":\"Materialia\",\"volume\":\"38 \",\"pages\":\"Article 102284\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-11-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materialia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2589152924002813\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materialia","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589152924002813","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

研究了脉冲电沉积镍钼涂层(2、4、8 和 11wt% Mo)的微观结构演变、电化学腐蚀和氢渗透。电化学阻抗谱和电位极化测量结果表明,在最佳钼含量下,耐腐蚀性能有所提高。纯 Ni 涂层的腐蚀电流密度 icorr 和极化电阻 Rp 值分别为 13.8 μA/cm2 和 1745 Ωcm2,而 Ni-4wt% Mo 涂层的 icorr 和 Rp 值分别为 1.7 μA/cm2 和 5406 Ωcm2。此外,当 Mo 含量超过 4 wt% 时,腐蚀速率也会增加。尽管如此,Ni-Mo 涂层的耐腐蚀性仍高于纯 Ni 涂层。镍钼涂层在固溶体基体中含有相对富集的钼簇。镍-4wt%钼涂层的耐腐蚀性能最高是由于较低能量的(001)和(111)纹理、较低能量的晶界构成以及较低的涂层应变。在镍-4wt%钼涂层中,钼富集的镍-钼纳米团簇提供了一条曲折的路径,从而抑制了氢的通过。相反,高角度晶界的高比例(与纯镍涂层相比)促进了氢的渗透,导致氢在纯镍和 Ni-4wt% Mo 涂层中的渗透程度相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Effect of texture, grain boundary constitution, and molybdenum partitioning on corrosion and hydrogen permeation behavior of pulse electrodeposited Ni-Mo coatings
Microstructural evolution, electrochemical corrosion and hydrogen permeation in pulse electrodeposited Ni-Mo coatings (2, 4, 8, and 11wt% Mo) were investigated. Electrochemical impedance spectroscopy and potentiodynamic polarization measurements revealed improved corrosion resistance at an optimum Mo content. The corrosion current density icorr and polarization resistance Rp values obtained were 13.8 μA/cm2 and 1745 Ωcm2 respectively for pure Ni coating while the icorr and Rp values obtained were 1.7 μA/cm2 and 5406 Ωcm2 respectively for Ni-4wt% Mo coating. Further, increase in the Mo content beyond 4 wt% increased the corrosion rate. Nevertheless, corrosion resistance of Ni-Mo coatings was found to be higher than the pure Ni coating. Ni-Mo coatings contained relatively Mo-enriched clusters in a solid solution matrix. The highest corrosion resistance of Ni-4wt% Mo coating was due to lower energy (001) and (111) textures, lower energy grain boundary constitution, and low coating strain. In Ni-4wt% Mo coating, Mo-enriched Ni-Mo nanoclusters inhibited hydrogen passage by providing a torturous path. In contrast, a high fraction of high-angle grain boundaries (compared to pure Ni coating) facilitated hydrogen permeation leading to a similar extent of hydrogen permeation through pure Ni and Ni-4wt% Mo coatings.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Materialia
Materialia MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
6.40
自引率
2.90%
发文量
345
审稿时长
36 days
期刊介绍: Materialia is a multidisciplinary journal of materials science and engineering that publishes original peer-reviewed research articles. Articles in Materialia advance the understanding of the relationship between processing, structure, property, and function of materials. Materialia publishes full-length research articles, review articles, and letters (short communications). In addition to receiving direct submissions, Materialia also accepts transfers from Acta Materialia, Inc. partner journals. Materialia offers authors the choice to publish on an open access model (with author fee), or on a subscription model (with no author fee).
期刊最新文献
Mechano-chemical competition in driven complex concentrated alloys Nucleation of recrystallization: A new approach to consider the evolution of the substructure in the system Thermoelectric properties of Bi2Te3-based prepared by directional solidification under a high magnetic field Effect of thermal history on performance of bulk metallic glass spacecraft components Multi-phase-field lattice Boltzmann modeling and simulations of semi-solid simple shear deformation
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1