一种高硼定向凝固合金的初熔行为及其对力学性能的影响
张洪伟1,2,秦学智2,李小武1,周兰章2(
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Incipient Melting Behavior and Its Influences on the Mechanical Properties of a Directionally Solidified Ni-Based Superalloy with High Boron Content
Hongwei ZHANG1,2,Xuezhi QIN2,Xiaowu LI1,Lanzhang ZHOU2()
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图4. 高硼DZ444合金在不同温度保温不同时间+水淬后初熔区SEM像
Fig.4. SEM images of IMR in the DZ444 alloy with high boron solid solution treated at different temperatures for different times and then cooled by WQ (Specimens were etched with electrolyte A)
(a) 1180 ℃, 5 min (b) 1190 ℃, 10 min (c) 1200 ℃, 10 min (d) 1200 ℃, 30 min
