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4 由下向上凝固(UWS)和由上向下凝固(DWS)示意图
Fig.4 Schematics of UWS (a) and DWS (b)