重力对高温合金定向凝固组织的影响

马德新, 赵运兴, 徐维台, 王富

Effect of Gravity on Directionally Solidified Structure of Superalloys

MA Dexin, ZHAO Yunxing, XU Weitai, WANG Fu

图2 采用下抽拉法制备的CMSX-4合金3种样品表面宏观腐蚀照片及相应横截面组织的OM像

Fig.2 Etched surface photos (a1-a3) and corresponding cross-section OM images (b1-b3) of three CMSX-4 alloy samples with circular (a1, b1), square (a2, b2), and cross shaped (a3, b3) cross-sections prepared by the pull-down method (Ellipse zones in Figs.1b1-b3 show the freckles)