选区激光熔化 γ' 相强化镍基高温合金裂纹形成机理与抗裂纹设计研究进展

祝国梁, 孔德成, 周文哲, 贺戬, 董安平, 疏达, 孙宝德

Research Progress on the Crack Formation Mechanism and Cracking-Free Design of γ' Phase Strengthened Nickel-Based Superalloys Fabricated by Selective Laser Melting

ZHU Guoliang, KONG Decheng, ZHOU Wenzhe, HE Jian, DONG Anping, SHU Da, SUN Baode

图11 激光增材制造无裂纹镍基高温合金设计[22]和增材制造新型镍基高温合金性能设计对比[80]

Fig.11 Design of crack-free nickel-based superalloys produced by additive manufacturing (a) solidification temperature range and γ' phase content[22] (b) solidification temperature range and creep life[22] (c) solidification temperature range and strain aging crack factor[22] (d) property design comparison of nickel-based superalloys fabricated by additive manufacturing (OAC—oxidation-assisted cracking)[80]