{"title":"Fe-30Mn-9Al-0.4C焊缝金属DO3组织的TEM研究","authors":"Chang-Pin Chou, Chien-Hsun Lee","doi":"10.1016/0026-0800(89)90034-7","DOIUrl":null,"url":null,"abstract":"<div><p>The microstructure of weld metal of duplex Fe-30Mn-9Al-0.4C alloy was investigated using optical metallography and transmission electron microscopy. It was found that DO<sub>3</sub> superlattices having an ordered FCC structure precipitated in the ferrite phase during autogenous gas tungsten arc welding. Two types of antiphase boundary were observed between precipitates in the Fe-Mn-Al weld metal.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"23 3","pages":"Pages 231-240"},"PeriodicalIF":0.0000,"publicationDate":"1989-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(89)90034-7","citationCount":"4","resultStr":"{\"title\":\"TEM studies of DO3 structure in Fe-30Mn-9Al-0.4C weld metal\",\"authors\":\"Chang-Pin Chou, Chien-Hsun Lee\",\"doi\":\"10.1016/0026-0800(89)90034-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The microstructure of weld metal of duplex Fe-30Mn-9Al-0.4C alloy was investigated using optical metallography and transmission electron microscopy. It was found that DO<sub>3</sub> superlattices having an ordered FCC structure precipitated in the ferrite phase during autogenous gas tungsten arc welding. Two types of antiphase boundary were observed between precipitates in the Fe-Mn-Al weld metal.</p></div>\",\"PeriodicalId\":100918,\"journal\":{\"name\":\"Metallography\",\"volume\":\"23 3\",\"pages\":\"Pages 231-240\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0026-0800(89)90034-7\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Metallography\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0026080089900347\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallography","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0026080089900347","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
TEM studies of DO3 structure in Fe-30Mn-9Al-0.4C weld metal
The microstructure of weld metal of duplex Fe-30Mn-9Al-0.4C alloy was investigated using optical metallography and transmission electron microscopy. It was found that DO3 superlattices having an ordered FCC structure precipitated in the ferrite phase during autogenous gas tungsten arc welding. Two types of antiphase boundary were observed between precipitates in the Fe-Mn-Al weld metal.
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