{"title":"Thermo physical properties of protective coatings used in arc welding by melting","authors":"E. Zernin, V.T. Fedko, S. B. Sapozhkov","doi":"10.1109/SPCMTT.2003.1438152","DOIUrl":null,"url":null,"abstract":"The paper investigates the thermophysical properties of protective coatings used in arc welding by melting and their effect on the value of the residual welding stress. Based on the performed investigations, it was established that the usage of protective coatings provide a decrease of the residual stresses after welding. This is due to the slower cooling of the welded joint metal than after welding without protective coating. In this case, the less factor of thermal diffusivity of protective coating, the lower residual stress after welding. Hence, in developing new protective coatings it is necessary to aim at obtaining composition with the lowest factor of thermal diffusivity.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPCMTT.2003.1438152","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The paper investigates the thermophysical properties of protective coatings used in arc welding by melting and their effect on the value of the residual welding stress. Based on the performed investigations, it was established that the usage of protective coatings provide a decrease of the residual stresses after welding. This is due to the slower cooling of the welded joint metal than after welding without protective coating. In this case, the less factor of thermal diffusivity of protective coating, the lower residual stress after welding. Hence, in developing new protective coatings it is necessary to aim at obtaining composition with the lowest factor of thermal diffusivity.
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