#5702. Interfacial characteristics of P91 steel - Inconel 740H bimetallic structure fabricated using wire-arc additive manufacturing

August 2026publication date
Proposal available till 23-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Metals and Alloys;
Industrial and Manufacturing Engineering;
Computer Science Applications;
Ceramics and Composites;
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Abstract:
Although bimetallic structures can offer unique solutions to engineering problems with varying functionality, joining two dissimilar alloys using additive manufacturing involves challenges such as cracking and segregation. In this work, bimetallic structures of Inconel 740H superalloy and P91 steel are processed using wire-arc additive manufacturing (WAAM) for the first time. P91 steel is directly deposited over 740H with a cooling time of 20 min in between the two depositions.
Keywords:
Coefficient of thermal expansion; Directed energy deposition; Dissimilar alloys; Processability; Residual stress

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