摘要
以热流分析为基础，估算了Ｎｉ原子分数分别为５３％和７２％的ＮｉＡｌ金属间化合物快速凝固过程中的冷却速率，研究了合金比热、熔化潜热及结晶温度间隔等对冷却速率的影响．结果发现，ＮｉＡｌ金属间化合物快速凝固过程中的冷却速率在２．５６×１０４～８．０２×１０５Ｋ／ｓ之间．快速凝固开始后的冷却速率将有所下降。
The cooling rates of melt spun Al 53%Ni￣Al 72%Ni intermetallics are calculated based on the theory of heat flux, and the effects of C p、Δ H m and Δ T 1 on the cooling rates are investigated. The results show that the cooling rates lie in the range of 2.56×10 4￣8.02×10 5 K/s during the melt spun process. The cooling rates are dropping down after rapid solidification initiates, and the drop relates with Δ H m and Δ T 1.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1997年第4期40-43,共4页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金
上海市科委科技基金
