高温合金铸锭凝固过程各部分冷却条件不同，中心部分冷却速率缓慢。为了模拟铸锭内部的缓慢冷却速率，通过超高温激光共聚焦扫描显微镜......

试验用UNS N06625合金（/%：0.027C,0.005S,0.005P,0.27Si,0.07Mn,21.68Cr,62.93Ni,9.00Mo,3.98Nb,0.20Ti,1.22Fe,0.143A1）由3 t中频感......