Investigation of the Microstructure and Mechanical Performance of GH4099 Alloy Fabricated by Selective Laser Melting

• Published in: Materials Vol. 18; no. 10; p. 2271
• Main Authors: Chen, Bo, Zhong, Yilong, Li, Wenying, Li, Yanying, Wang, Qiyou, Lu, Yingjie, Qi, Zichen, Wang, Shenqi, Li, Yanbiao
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 14.05.2025; MDPI
• Subjects: 3D printing; Ablation; Additive manufacturing; Aging; Alloys; Cooling; Corrosion and anti-corrosives; Corrosion resistance; Dimpling; Ductile fracture; Heat resistant alloys; High temperature; Investigations; Laser beam melting; Lasers; Mechanical properties; Methods; Microstructure; Morphology; Nickel; Nickel base alloys; Particle size; Particle size distribution; Powders; Precipitation hardening; Precipitation hardening alloys; Raw materials; Solidification; Solution heat treatment; Specialty metals industry; Superalloys; Temperature; Tensile strength; Yield strength; China; Germany; selective laser melting; GH4099 alloy powder; heat treatment; EIGA; microstructure morphology

GH4099 is a nickel-based, high-temperature, precipitation-strengthened alloy with excellent mechanical properties and corrosion resistance, widely used in aerospace components. The performance of parts produced by additive manufacturing depends significantly on alloy powder quality and heat treatmen...