国内变形高温合金研制进展

杜金辉,吕旭东,董建新,孙文儒,毕中南,赵光普,邓群,崔传勇,马惠萍,张北江

Research Progress of Wrought Superalloys in China

Jinhui DU,Xudong LV,Jianxin DONG,Wenru SUN,Zhongnan BI,Guangpu ZHAO,Qun DENG,Chuanyong CUI,Huiping MA,Beijiang ZHANG

表1 不同锭型纵截面中心部位二次枝晶间距及Ti元素偏析系数(K)比较

Table 1 Comparisons of the SDAS and Ti element segregation coefficient (K) of different ingot center longitudinal section

Diameter of ingot / mm Range of SDAS / μm Average of SDAS / μm K 406 80~160 116.3 1.410 508 98~161 132.2 1.618