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)