{"title":"3.5%NaCl 溶液中激光熔覆 NiTi-xAl2O3 涂层的微观结构、腐蚀磨损和电化学性能","authors":"Yang Chenglong, Kong Dejun","doi":"10.1108/ilt-02-2024-0044","DOIUrl":null,"url":null,"abstract":"<h3>Purpose</h3>\n<p>The aim of this study is to investigate the effects of Al<sub>2</sub>O<sub>3</sub> mass fraction on the corrosive-wear and electrochemical performance of NiTi coating in 3.5% NaCl solution.</p><!--/ Abstract__block -->\n<h3>Design/methodology/approach</h3>\n<p>The NiTi–xAl<sub>2</sub>O<sub>3</sub> coatings were fabricated on S355 steel by laser cladding, and their corrosive-wear and electrochemical performance were investigated using a wear tester and electrochemical workstation, respectively.</p><!--/ Abstract__block -->\n<h3>Findings</h3>\n<p>The wear rates of NiTi–5%Al<sub>2</sub>O<sub>3</sub>, –10%Al<sub>2</sub>O<sub>3</sub> and –15%Al<sub>2</sub>O<sub>3</sub> coatings are 82.33, 54.23 and 30.10 µm<sup>3</sup> mm<sup>−1</sup> N<sup>−1</sup>, respectively, showing that the wear resistance of NiTi–15%Al<sub>2</sub>O<sub>3</sub> coating is the best. The wear mechanism is abrasive wear, which is attributed to the increase of coating hardness by the Al<sub>2</sub>O<sub>3</sub> addition. The polarization resistance of NiTi–5%Al<sub>2</sub>O<sub>3</sub>, –10%Al<sub>2</sub>O<sub>3</sub> and –15%Al<sub>2</sub>O<sub>3</sub> coatings is 3,639, 5,125 and 10,024 O cm<sup>2</sup>, respectively, exhibiting that the NiTi–15% Al<sub>2</sub>O<sub>3</sub> coating has the best corrosion resistance.</p><!--/ Abstract__block -->\n<h3>Originality/value</h3>\n<p>The roles of Al<sub>2</sub>O<sub>3</sub> in the corrosive-wear and electrochemical performance of NiTi–xAl<sub>2</sub>O<sub>3</sub> coating were revealed through the experimental investigation.</p><!--/ Abstract__block -->\n<h3>Peer review</h3>\n<p>The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2024-0044/</p><!--/ Abstract__block -->","PeriodicalId":13523,"journal":{"name":"Industrial Lubrication and Tribology","volume":"68 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microstructure, corrosive-wear and electrochemical performance of laser cladded NiTi–xAl2O3 coatings in 3.5%NaCl solution\",\"authors\":\"Yang Chenglong, Kong Dejun\",\"doi\":\"10.1108/ilt-02-2024-0044\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3>Purpose</h3>\\n<p>The aim of this study is to investigate the effects of Al<sub>2</sub>O<sub>3</sub> mass fraction on the corrosive-wear and electrochemical performance of NiTi coating in 3.5% NaCl solution.</p><!--/ Abstract__block -->\\n<h3>Design/methodology/approach</h3>\\n<p>The NiTi–xAl<sub>2</sub>O<sub>3</sub> coatings were fabricated on S355 steel by laser cladding, and their corrosive-wear and electrochemical performance were investigated using a wear tester and electrochemical workstation, respectively.</p><!--/ Abstract__block -->\\n<h3>Findings</h3>\\n<p>The wear rates of NiTi–5%Al<sub>2</sub>O<sub>3</sub>, –10%Al<sub>2</sub>O<sub>3</sub> and –15%Al<sub>2</sub>O<sub>3</sub> coatings are 82.33, 54.23 and 30.10 µm<sup>3</sup> mm<sup>−1</sup> N<sup>−1</sup>, respectively, showing that the wear resistance of NiTi–15%Al<sub>2</sub>O<sub>3</sub> coating is the best. The wear mechanism is abrasive wear, which is attributed to the increase of coating hardness by the Al<sub>2</sub>O<sub>3</sub> addition. The polarization resistance of NiTi–5%Al<sub>2</sub>O<sub>3</sub>, –10%Al<sub>2</sub>O<sub>3</sub> and –15%Al<sub>2</sub>O<sub>3</sub> coatings is 3,639, 5,125 and 10,024 O cm<sup>2</sup>, respectively, exhibiting that the NiTi–15% Al<sub>2</sub>O<sub>3</sub> coating has the best corrosion resistance.</p><!--/ Abstract__block -->\\n<h3>Originality/value</h3>\\n<p>The roles of Al<sub>2</sub>O<sub>3</sub> in the corrosive-wear and electrochemical performance of NiTi–xAl<sub>2</sub>O<sub>3</sub> coating were revealed through the experimental investigation.</p><!--/ Abstract__block -->\\n<h3>Peer review</h3>\\n<p>The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2024-0044/</p><!--/ Abstract__block -->\",\"PeriodicalId\":13523,\"journal\":{\"name\":\"Industrial Lubrication and Tribology\",\"volume\":\"68 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-06-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Industrial Lubrication and Tribology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1108/ilt-02-2024-0044\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial Lubrication and Tribology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1108/ilt-02-2024-0044","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Microstructure, corrosive-wear and electrochemical performance of laser cladded NiTi–xAl2O3 coatings in 3.5%NaCl solution
Purpose
The aim of this study is to investigate the effects of Al2O3 mass fraction on the corrosive-wear and electrochemical performance of NiTi coating in 3.5% NaCl solution.
Design/methodology/approach
The NiTi–xAl2O3 coatings were fabricated on S355 steel by laser cladding, and their corrosive-wear and electrochemical performance were investigated using a wear tester and electrochemical workstation, respectively.
Findings
The wear rates of NiTi–5%Al2O3, –10%Al2O3 and –15%Al2O3 coatings are 82.33, 54.23 and 30.10 µm3 mm−1 N−1, respectively, showing that the wear resistance of NiTi–15%Al2O3 coating is the best. The wear mechanism is abrasive wear, which is attributed to the increase of coating hardness by the Al2O3 addition. The polarization resistance of NiTi–5%Al2O3, –10%Al2O3 and –15%Al2O3 coatings is 3,639, 5,125 and 10,024 O cm2, respectively, exhibiting that the NiTi–15% Al2O3 coating has the best corrosion resistance.
Originality/value
The roles of Al2O3 in the corrosive-wear and electrochemical performance of NiTi–xAl2O3 coating were revealed through the experimental investigation.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2024-0044/
期刊介绍：
Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.
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