高温合金单晶铸件中条纹晶的形成机制

马德新,王富,徐维台,徐文梁,赵运兴

Formation of Sliver Defects in Single CrystalCastings of Superalloys

Dexin MA,Fu WANG,Weitai XU,Wenliang XU,Yunxing ZHAO

表1 所用合金的的化学成分 (mass fraction / %)

Table 1 Nominal composition of used alloys (mass fraction / %)

Alloy Cr Co W Mo Al Ti Ta Hf Re Ni DD5 7.02 7.52 5.03 1.52 6.23 - 6.51 0.15 3.01 Bal. CMSX-4 6.49 9.71 6.41 0.63 5.60 1.01 6.52 0.10 2.97 Bal.