Ningning Li, Lei Xu, Jin Peng, Xi Chen, Mingqi Tang, Jiajia Yang, Yan Shang
{"title":"MEASUREMENT OF ADHESION PROPERTIES OF Ni2Al3 COATING WITH A MICRO SCRATCH TESTER AND AUTOMATIC SCRATCH TESTER","authors":"Ningning Li, Lei Xu, Jin Peng, Xi Chen, Mingqi Tang, Jiajia Yang, Yan Shang","doi":"10.17222/mit.2023.920","DOIUrl":null,"url":null,"abstract":"A functionally graded Ni2Al3 coating, prepared with a two-step method of nickel electroplating and pack aluminizing, can improve the hardness of low-carbon steel and other surface performance features. However, the adhesion between the coating and the substrate is an important factor affecting these properties. The primary purpose of this study was to introduce a test for determining the adhesion of the Ni2Al3 coating, which included two tools, namely a micro scratch tester (MST) and a WS-2000 automatic scratch tester, used for measuring the coating adhesion and observing the scratch morphology. Results show that the adhesion is about 14 N according to the MST, which is equivalent to 56 N obtained with WS-2000. As the load increases, the scratches gradually become larger and deeper. Finally, the surface morphology shows cracks, indicating that the coating has failed.","PeriodicalId":18258,"journal":{"name":"Materiali in tehnologije","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materiali in tehnologije","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.17222/mit.2023.920","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A functionally graded Ni2Al3 coating, prepared with a two-step method of nickel electroplating and pack aluminizing, can improve the hardness of low-carbon steel and other surface performance features. However, the adhesion between the coating and the substrate is an important factor affecting these properties. The primary purpose of this study was to introduce a test for determining the adhesion of the Ni2Al3 coating, which included two tools, namely a micro scratch tester (MST) and a WS-2000 automatic scratch tester, used for measuring the coating adhesion and observing the scratch morphology. Results show that the adhesion is about 14 N according to the MST, which is equivalent to 56 N obtained with WS-2000. As the load increases, the scratches gradually become larger and deeper. Finally, the surface morphology shows cracks, indicating that the coating has failed.
期刊介绍：
The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is a scientific journal, devoted to original papers and review scientific papers concerned with the areas of fundamental and applied science and technology. Topics of particular interest include metallic materials, inorganic materials, polymers, vacuum technique and lately nanomaterials.
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