Effect of heat treatments on microstructural evolution of additively manufactured and wrought 17-4PH stainless steel
By Yu Sun, R. Hebert, M. Aindow. Materials & Design (1980-2015), 2018
232 citations recorded by the source corpus.
Abstract Additively manufactured (AM) components usually have nonequilibrium microstructures. Post-built heat treatments are recommended for AM components to achieve homogenous microstructures. In this study, the effects were investigated of conventional solutionizing and precipitation hardening (H-900) heat treatments on the microstructure evolution of 17-4PH AM and wrought components. Microstructural characterization techniques including SEM, TEM and EBSD analysis were used on 17-4PH AM and wrought components to obtain quantitative information about the microstructure and phase evolution during these heat treatments. These microstructural studies demonstrate that 17-4PH AM components can achieve microstructures and hardnesses similar to those of wrought samples by post-built heat treatments.
Subfields: Automotive Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/893df45bd805e4418abbcc579b62e882391ec950
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In Automotive Engineering
In Mechanical Engineering
Citations in the corpus
- Steels in additive manufacturing: A review of their microstructure and properties (2020, methodology): “They do not discuss the reason for the majority phase being ferrite, but it stands to reason that the material solidified as ferrite and never transformed to austenite during cooldown [85].”
- Review of Powder Bed Fusion Additive Manufacturing for Metals (2021, result): “Post-heat treatment of as-built 316L SS resulted in diminishing columnar structure and the microstructure is comparable to the wrought microstructure [205,206].”
- Additive manufacturing of steels: a review of achievements and challenges (2020, background): “Other studies have also shown these distinct microstructural changes in AM 17–4 with heat treatment [137, 138], with these changes generating increases in strength for AM 17–4 parts [127, 139].”