高强钢中亚稳奥氏体对断裂韧性影响的研究进展

唐景韬, 姚英杰, 张游游, 吴文华, 李宇博, 陈浩, 杨志刚

Research Progress on the Influence of Metastable Austenite on the Fracture Toughness of High-Strength Steels

TANG Jingtao, YAO Yingjie, ZHANG Youyou, WU Wenhua, LI Yubo, CHEN Hao, YANG Zhigang

图5 在不同淬火-配分工艺下相变贡献的裂纹能量释放速率( $G_{I C}^{γ}$ )，根据相变吸能理论计算的 $G_{I C}^{γ}$ 及奥氏体平均C含量^[77]

Fig.5 Changes of energy release rate ( $G_{I C}^{γ}$ ) due to phase transformation, corresponding evaluated $G_{I C}^{γ}$ from energy adsorption theory, and the carbon concentration in retained austenite varying with quenching & partitioning process^[77] (The sample axis represents the quenching & partitioning parameters, e.g. QP260(60) indicates partitioning at 260 ^oC for 60 min)