Effect of Minor P and C Regulation on Microstructure Evolution and High-Temperature Properties of Selective Laser Melted GH4169 Superalloy
Selective laser melting (SLM) produces elemental segregation and nonequilibrium secondary phases in GH4169 superalloys, but the effects of P and C variations on grain-boundary phase evolution and high-temperature tensile behavior remain unclear. Alloys with primarily varied P (0.034–0.058 wt.%) and C (0.009–0.066 wt.%)...