{"title":"15-7Mo钢热处理后焊缝的组织和织构","authors":"A. Ziewiec, A. Zielińska-Lipiec, M. Witkowska","doi":"10.7494/mafe.2016.42.4.225","DOIUrl":null,"url":null,"abstract":"This paper presents the results of determining the effect of heat treatment after welding X8CrNiMoAl15-7-2 steel (commercial name: PH 15-7Mo steel) on the microstructure and texture of the welds. XRD studies showed the presence of the two phases in the welds of 15-7Mo steel; i.e., δ ferrite and austenite. Annealing at a temperature of 400°C/1 h and 550°C/1 h results in changes of the intensities for individual peaks derived from austenite and ferrite. Microstructure investigations carried out by LM and TEM indicated that the austenite and δ ferrite coexist in the microstructure of 15-7Mo steel in as-welded condition. Annealing at a temperature range of between 400–620°C after welding causes small changes in the microstructure. The hardness of the welds after annealing in that temperature range increases.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"25 1","pages":"225"},"PeriodicalIF":0.0000,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"MICROSTRUCTURE AND TEXTURE WELDS OF 15-7Mo STEEL AFTER HEAT TREATMENT\",\"authors\":\"A. Ziewiec, A. Zielińska-Lipiec, M. Witkowska\",\"doi\":\"10.7494/mafe.2016.42.4.225\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents the results of determining the effect of heat treatment after welding X8CrNiMoAl15-7-2 steel (commercial name: PH 15-7Mo steel) on the microstructure and texture of the welds. XRD studies showed the presence of the two phases in the welds of 15-7Mo steel; i.e., δ ferrite and austenite. Annealing at a temperature of 400°C/1 h and 550°C/1 h results in changes of the intensities for individual peaks derived from austenite and ferrite. Microstructure investigations carried out by LM and TEM indicated that the austenite and δ ferrite coexist in the microstructure of 15-7Mo steel in as-welded condition. Annealing at a temperature range of between 400–620°C after welding causes small changes in the microstructure. The hardness of the welds after annealing in that temperature range increases.\",\"PeriodicalId\":18751,\"journal\":{\"name\":\"Metallurgy and Foundry Engineering\",\"volume\":\"25 1\",\"pages\":\"225\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metallurgy and Foundry Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.7494/mafe.2016.42.4.225\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallurgy and Foundry Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7494/mafe.2016.42.4.225","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
MICROSTRUCTURE AND TEXTURE WELDS OF 15-7Mo STEEL AFTER HEAT TREATMENT
This paper presents the results of determining the effect of heat treatment after welding X8CrNiMoAl15-7-2 steel (commercial name: PH 15-7Mo steel) on the microstructure and texture of the welds. XRD studies showed the presence of the two phases in the welds of 15-7Mo steel; i.e., δ ferrite and austenite. Annealing at a temperature of 400°C/1 h and 550°C/1 h results in changes of the intensities for individual peaks derived from austenite and ferrite. Microstructure investigations carried out by LM and TEM indicated that the austenite and δ ferrite coexist in the microstructure of 15-7Mo steel in as-welded condition. Annealing at a temperature range of between 400–620°C after welding causes small changes in the microstructure. The hardness of the welds after annealing in that temperature range increases.
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