Abstract：The effect of withdrawing rate on the solidification microstructure of a single crystal superalloy DD6 was investigated.The results show that,with the increase of withdrawing rate,the morphology of liquid-solid interface of DD6 alloy transforms from coarse dendrite to fine dendrite,the size of the γ' phase particles decreases,the shape of γ' particles tends to be more cubic,the volume fraction of γ-γ' eutectic increases and the volume fraction of coarse primary γ' precipitates in γ-γ' eutectic decreases.
刘维维, 唐定中. 抽拉速率对DD6单晶高温合金凝固组织的影响[J]. 材料工程, 2006, (1): 16-18.
LIU Wei-wei, TANG Ding-zhong. Effect of Withdrawing Rate on Solidification Microstructure of Single Crystal Superalloy DD6. Journal of Materials Engineering, 2006, (1): 16-18.