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6 选区激光熔化高强镍基高温合金成形质量与扫描速率和扫描策略的对应关系[55,56]

Fig.6 Relationship between forming quality and scan velocity for CM247LC (a)[55] and scanning strategy for IN738LC (Insets show the corresponding defects such as cracks and voids) (b)[56] fabricated by selective laser melting