Inconel 740H Prepared by Additive Manufacturing: Microstructure and Mechanical Properties
Ruizhang Hu,
Wenqing Li,
Chun Guo
et al.
Abstract:An Inconel 740H nickel-based alloy was fabricated via wire arc additive manufacturing. The as-welded and heat-treated samples were analyzed to investigate their phase composition, microstructure, crystal structure, and mechanical properties. After heat treatment, the sample exhibited a columnar crystal zone microstructure consisting of a γ matrix + precipitated phase, the remelting zone metallographic structure was a γ matrix + precipitated phase, and the HAZ metallographic structure was a γ matrix + precipita… Show more
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