Abstract
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.
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This work was supported by Important National Science & Technology Specific Projects of China 2011ZX06004-009.
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Chen, Z.R., Lu, Y.H. TEM Observation of Martensite Layer at the Weld Interface of an A508III to Inconel 82 Dissimilar Metal Weld Joint. Metall Mater Trans A 46, 5494–5498 (2015). https://doi.org/10.1007/s11661-015-3171-2
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DOI: https://doi.org/10.1007/s11661-015-3171-2