冷却速率导致的薄壁效应对K465合金显微组织和持久性能的影响
郭小童1,2, 郑为为1, 李龙飞1, 冯强1()
Cooling Rate Driven Thin-Wall Effects on the Microstructures and Stress Rupture Properties of K465 Superalloy
GUO Xiaotong1,2, ZHENG Weiwei1, LI Longfei1, FENG Qiang1()

图9. K465合金棒材[14]、管材标准热处理态和经900~1050 ℃热暴露后975 ℃、225 MPa条件下的持久寿命

Fig.9. Stress rupture lives of the K465 alloy bar[14] and K465 alloy tube at 975 ℃, 225 MPa after the standard heat treatment and after thermal exposure at 900 ℃ (a), 1000 ℃ and 1050 ℃ (b)