| Abstract Scope |
Attention is given to 17-4 PH stainless steel because of the attainable high mechanical properties needed in a structural material. Further, there is now widespread availability of suitable powders from a variety of sources, allowing shaping by injection molding, die compaction, hot isostatic pressing, and additive manufacturing. The properties of this alloy are sensitive to several processing decisions. As a consequence, the evolving additive manufacturing approaches are rediscovering some of the same effects documented earlier for metal powder injection molding, hot isostatic pressing, and die compaction. The main interactions are illustrated based on optimized mechanical properties, showing how the properties change with the processing parameters. This review gives the conditions that optimize the density, properties, microstructure, and distortion for this alloy. |