TEM Observation of Martensite Layer at the Weld Interface of an A508III to Inconel 82 Dissimilar Metal Weld Joint

A lenticular martensite layer at the weld interface in an A508III/Inconel 82 dissimilar metal weld (DMW) joint was studied by TEM. The martensite/weld metal boundary was observed as the fusion boundary. There was a K–S orientation relationship between martensite and weld metal. The formation of the...

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Bibliographic Details
Published inMetallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 46; no. 12; pp. 5494 - 5498
Main Authors Chen, Z. R., Lu, Y. H.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2015
Springer Nature B.V
Subjects
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Martensitic stainless steel
Materials Science
Metallic Materials
Microstructure
Nanotechnology
Steel alloys
Structural Materials
Surfaces and Interfaces
Thin Films
Bainite
Welding
Post Weld Heat Treatment
Martensite
Weld Metal
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Summary:A lenticular martensite layer at the weld interface in an A508III/Inconel 82 dissimilar metal weld (DMW) joint was studied by TEM. The martensite/weld metal boundary was observed as the fusion boundary. There was a K–S orientation relationship between martensite and weld metal. The formation of the martensite was mainly determined by the distribution of alloy elements. The martensite was responsible for the hardness peak in the DMW.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-015-3171-2