高温合金单晶铸件中条纹晶的形成机制
马德新1,2,王富3,徐维台1,徐文梁3,赵运兴1(
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Formation of Sliver Defects in Single CrystalCastings of Superalloys
MA Dexin1,2,WANG Fu3,XU Weitai1,XU Wenliang3,ZHAO Yunxing1()
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图9. 枝晶横向收缩(包括法向和切向收缩)引起的条纹晶产生机制示意图
Fig.9. Schematic of sliver formation caused by lateral shrinkage force in normal (FN) and tangential direction (FT)(a) dendrite growth into mold hole (b) rotation of the broken dendrite
