K439B铸造高温合金800℃长期时效组织与性能演变
张雷雷, 陈晶阳, 汤鑫, 肖程波, 张明军, 杨卿

Evolution of Microstructures and Mechanical Properties of K439B Superalloy During Long-Term Aging at 800oC
ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing
图7 K439B合金800℃时效3000 h后的晶界析出相及元素分布
Fig.7 Grain boundary precipitated phase, SAED patterns of regions 1#-3#, and EDS compositional mapping of K439B alloy subjected to long-term aging at 800oC for 3000 h