激光粉末床熔融镍基高温合金中第二相演化机制与调控策略进展

彭望君, 王长河, 杜大帆, 董安平, 陈彪, 孙宝德

A Review on the Evolution Mechanisms and Regulation Strategies of Secondary Phases in Laser Powder Bed Fusion Nickel-Based Superalloys

PENG Wangjun, WANG Changhe, DU Dafan, DONG Anping, CHEN Biao, SUN Baode

图4 第二相分布和相演化规律[6,103~105]

Fig.4 Distribution and phase evolution laws of the secondary phase (a) oxide distribution[103] (b) phase transformation during heat treatment[6] (DA—direct aging, HDA—homogenizing + DA) (c) phase transformation during solid solution-aging heat treatment[104] (d) in situ oxide formation[105]