熔速对氩气保护GH4169G合金电渣锭组织及夹杂物的影响

郝剑, 刘芳, 杨树林, 姚晓雨, 孙文儒

Effect of Melting Rate on Structure and Inclusions of GH4169G Alloy Ingot Fabricated by Argon Protected Electroslag Melting

HAO Jian, LIU Fang, YANG Shulin, YAO Xiaoyu, SUN Wenru

表1 不同熔速电渣锭边缘及中心部位的化学成分

Table 1 Chemical composition in the edge and center of electroslag ingots (mass fraction, %)

Melting rate Position Ti Nb Mg N O S LMR Edge 1.03 5.35 <0.003 0.0090 0.0009 <0.0005 Center 1.03 5.36 <0.003 0.0060 0.0014 <0.0005 LMR+1 kg/min Edge 0.96 5.37 <0.003 0.0062 0.0009 <0.0005 Center 0.98 5.40 <0.003 0.0071 0.0013 <0.0005