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(
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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()
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图4. K465合金管材经不同热暴露处理后枝晶间区域的SEM像
Fig.4. SEM-BSE images showing the two-dimentional morphologies of the interdendritic regions in the K465 alloy tube after thermal exposure conditions of 900 ℃, 300 h (a), 900 ℃, 1000 h (b), 1000 ℃, 1000 h (c) and 1050 ℃, 1000 h (d), and SEM-SE images showing the three-dimentional morphologies after thermal exposure at 1050 ℃ for 300 h with low (e) and high (f) magnifications
