论文部分内容阅读
环境做功对金属凝固过程形核的影响郭俊清,金属科学与工艺,1985,Vol.4,No,4,46～53等温等压条件下,环境对凝固体系做功可减小晶核的临界半径.做功的方式、大小不同,对临界晶核半径的影响也各异.凝固形核率随功值的增大而增大,其对功值的变化率随功值的增加而变小。环境对凝固体系做功,能细化晶粒并改变凝固组织。
Effect of ambient work on the nucleation of metal during solidification GUO Junqing, Metal Science and Technology, 1985, Vol.4, No, 4,46 ~ 53 Under the conditions of isothermal and equal pressure, the environment can reduce the critical radius of the nucleus for the solidification system. The way of doing work, the size, and the impact on the critical nuclei radius are also different.The solidification nucleation rate increases with the increase of work value, and the change rate of work value decreases with the increase of work value. Environment on the solidification system work, can refine the grain and change the solidified tissue.