Abstract：The microstructure of alloy IC6 with different carbon contents as-cast and after homoginization at 1260℃ for 10h was studied by SEM with EDS and XRD.The results showed that the microstructure of as-cast alloy was mainly composed of γ',γ,NiMo,α-Mo,M3B2 and M6C phases.NiMo,α-Mo,M3B2 and M6C phases distributed in the interdendrite in bone or net pattern.Quantity of NiMo,α-Mo and M3B2 phases decreased obviously with increase of C content,and α-Mo phase disappeared when C content reached 0.20%(mass fraction),while the amount of M6C increased with increase of C content.Microstructures of the three alloys changed obviously after 1260℃/10h solution heat treatment,and NiMo,α-Mo phases disappeared.The shape of M3B2 and M6C transformed from bone and net pattern in as-cast to strip and block pattern.Quantity of M6C increased obviously with increase of C content,distributing continuously in the interdendrite.
范映伟, 叶洋, 侯淑娥, 宋尽霞, 韩雅芳. C含量对IC6合金微观组织的影响[J]. 材料工程, 2006, (1): 8-11.
FAN Ying-wei, YE Yang, HOU Shu-e, SONG Jin-xia, HAN Ya-fang. Effect of Carbon Content on Microstructure of IC6 Alloy. Journal of Materials Engineering, 2006, (1): 8-11.