Effect of heat treatment on the properties of a high alloying maraging steel fabricated by laser metal deposition
Soochow University, China, successfully demonstrated a novel high alloying element maraging steel (HA-MS1) prepared by laser metal deposition (LMD). Differential scanning calorimetry (DSC) phase transformation analysis on the as-deposited (AF) specimens was conducted and the reasonable aging heat treatment (AT) and solution + aging heat treatment (ST + AT) were subsequently proposed. These specimens were characterized by scanning electron microscopy (SEM), electron back-scattered diffraction (EBSD), X-ray diffraction (XRD), hardness test, wear test and potentiodynamic polarization test for microstructure, phase,
