Maya M. Harfouche, Sima A. Alidokht, Alejandra Islas Encalada, Venkata N. V. Mungala, Richard R. Chromik, Christian Moreau, Navid Sharifi, Pantcho Stoyanov, Mary E. Makowiec
{"title":"厚 HVOF 热喷涂涂层的划痕附着力测试","authors":"Maya M. Harfouche, Sima A. Alidokht, Alejandra Islas Encalada, Venkata N. V. Mungala, Richard R. Chromik, Christian Moreau, Navid Sharifi, Pantcho Stoyanov, Mary E. Makowiec","doi":"10.1007/s11666-024-01741-3","DOIUrl":null,"url":null,"abstract":"<div><p>The cohesion bond strength of two different families of HVOF coatings was evaluated by cross-sectional scratch testing at multiple loads, according to the ISO working draft (ISO/WD 27307). Diamalloy 3001 coatings with and without regions of enhanced oxidation were investigated. Stellite 6 coatings with and without Cr<sub>3</sub>C<sub>2</sub> carbide phases were also observed. The effects of oxidation and composition on the cohesion bond strength of these metallic and composite HVOF coatings were analyzed. Cross-sectional scratch testing revealed to be a useful qualitative tool for comparing the cohesion strength of different thick HVOF coatings, as well as identifying their failure mechanisms and observing their relationship to the coating microstructure and composition. Indeed, in both coating families tested here, the presence of ceramic compounds was linked to a decrease in the overall cohesion strength of the coating. Cracking and/or microcracking in these brittle ceramic phases was observed and is the likely mechanism behind the lower overall cohesion strength in the coatings. Splat boundary failure occurred preferentially at heavily oxidized splat boundaries in the Diamalloy 3001 coatings. Cracking within the Cr<sub>3</sub>C<sub>2</sub> phase of the Stellite 6 composite coating significantly decreased the cohesive bond strength at high scratch loads.</p></div>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"33 4","pages":"1158 - 1166"},"PeriodicalIF":3.2000,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Scratch Adhesion Testing of Thick HVOF Thermal Sprayed Coatings\",\"authors\":\"Maya M. Harfouche, Sima A. Alidokht, Alejandra Islas Encalada, Venkata N. V. Mungala, Richard R. Chromik, Christian Moreau, Navid Sharifi, Pantcho Stoyanov, Mary E. Makowiec\",\"doi\":\"10.1007/s11666-024-01741-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The cohesion bond strength of two different families of HVOF coatings was evaluated by cross-sectional scratch testing at multiple loads, according to the ISO working draft (ISO/WD 27307). Diamalloy 3001 coatings with and without regions of enhanced oxidation were investigated. Stellite 6 coatings with and without Cr<sub>3</sub>C<sub>2</sub> carbide phases were also observed. The effects of oxidation and composition on the cohesion bond strength of these metallic and composite HVOF coatings were analyzed. Cross-sectional scratch testing revealed to be a useful qualitative tool for comparing the cohesion strength of different thick HVOF coatings, as well as identifying their failure mechanisms and observing their relationship to the coating microstructure and composition. Indeed, in both coating families tested here, the presence of ceramic compounds was linked to a decrease in the overall cohesion strength of the coating. Cracking and/or microcracking in these brittle ceramic phases was observed and is the likely mechanism behind the lower overall cohesion strength in the coatings. Splat boundary failure occurred preferentially at heavily oxidized splat boundaries in the Diamalloy 3001 coatings. Cracking within the Cr<sub>3</sub>C<sub>2</sub> phase of the Stellite 6 composite coating significantly decreased the cohesive bond strength at high scratch loads.</p></div>\",\"PeriodicalId\":679,\"journal\":{\"name\":\"Journal of Thermal Spray Technology\",\"volume\":\"33 4\",\"pages\":\"1158 - 1166\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-02-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Thermal Spray Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11666-024-01741-3\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Thermal Spray Technology","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11666-024-01741-3","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Scratch Adhesion Testing of Thick HVOF Thermal Sprayed Coatings
The cohesion bond strength of two different families of HVOF coatings was evaluated by cross-sectional scratch testing at multiple loads, according to the ISO working draft (ISO/WD 27307). Diamalloy 3001 coatings with and without regions of enhanced oxidation were investigated. Stellite 6 coatings with and without Cr3C2 carbide phases were also observed. The effects of oxidation and composition on the cohesion bond strength of these metallic and composite HVOF coatings were analyzed. Cross-sectional scratch testing revealed to be a useful qualitative tool for comparing the cohesion strength of different thick HVOF coatings, as well as identifying their failure mechanisms and observing their relationship to the coating microstructure and composition. Indeed, in both coating families tested here, the presence of ceramic compounds was linked to a decrease in the overall cohesion strength of the coating. Cracking and/or microcracking in these brittle ceramic phases was observed and is the likely mechanism behind the lower overall cohesion strength in the coatings. Splat boundary failure occurred preferentially at heavily oxidized splat boundaries in the Diamalloy 3001 coatings. Cracking within the Cr3C2 phase of the Stellite 6 composite coating significantly decreased the cohesive bond strength at high scratch loads.
期刊介绍：
From the scientific to the practical, stay on top of advances in this fast-growing coating technology with ASM International''s Journal of Thermal Spray Technology. Critically reviewed scientific papers and engineering articles combine the best of new research with the latest applications and problem solving.
A service of the ASM Thermal Spray Society (TSS), the Journal of Thermal Spray Technology covers all fundamental and practical aspects of thermal spray science, including processes, feedstock manufacture, and testing and characterization.
The journal contains worldwide coverage of the latest research, products, equipment and process developments, and includes technical note case studies from real-time applications and in-depth topical reviews.
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