摘要
采用区域熔化定向凝固装置，对冷却速度在１３～１３０Ｋ／ｓ范围内Ｎｉ－５％Ｃｕ合金的结晶形貌研究表明：在温度梯度１３００Ｋ／ｃｍ条件下，晶体生长速度ｖ＝５００μｍ／ｓ时，不同结晶取向晶粒的结晶形貌不同；当晶体生长速度ｖ＝８００μｍ／ｓ时，不同结晶取向晶粒的细胞晶间距不同，亚快速凝固条件下，晶体生长方向对结晶形貌的影响非常显著．
The solidified microstructure of Ni-5% Cu alloy is researched at the cooling rate range of 13￣130K/s with zone melting unidirectional solidification apparatus.It indicates that the crystals with different crystalline growth orientation have different solidified microstructures on the condition of GL-1300K/cm,v=500um/s.The crystals have different superfine cellular spacing due to the crystalline growth orientation with GL=1300K/cm,v=800um/s.The crystalline orientation has a great effect on the solidified microstructure in hyporapid solidification.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1994年第1期31-34,共4页
Journal of University of Science and Technology Beijing
基金
国家教委博士点基金
关键词
结晶取向
凝固
结晶形貌
晶体生长
crystalline growth orientation,solidification, solidified microstructure
