摘要
在压力为３－６ＧＰａ和温度为７２３－９３３Ｋ范围内，对非晶（Ｆｅ_（０．９９）Ｍｏ_（０．０１））_（７８）Ｓｉ_９Ｂ_（１３）合金等温晶化形成的纳米α－Ｆｅ（Ｍｏ，Ｓｉ）晶粒尺寸随温度和压力的变化进行了研究。发现其晶粒尺寸随压力变化主要取决于压力对成核速率的影响，其根本原因是压力对熔点的作用；而压力亦影响生长速率，但对最小晶粒尺寸的形成温度和临界压力的影响可以忽略．
Effects of pressure and temperature on grain size of nanocrystalline α-Fe(Mo,Si) produced by annealing amorphous (Fe_(0.99)Mo_(0.01)_(78)Si_9B_(13) alloys in temperature range from 723 to 933 K under pressures range of 3 to 6 GPa were studied. It is found that the effect of pressure on α-Fe(Mo,Si) grain size results mainly from nucleation rate, and its basic cause is the effect on melting point. Yet the effect of pressure, decreasing growth rate, on the fomiation temperature and critical pressure of smallest grain size of α-Fe(Mo,Si) can be negligible.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第8期867-871,共5页
Acta Metallurgica Sinica
基金
国家自然科学基金
吉林省教委资助
关键词
静高压
晶化
非晶态合金
纳米材料
晶粒尺寸
high pressure, crystallization, nanocrystal, Fe-Mo-Si-B, amorphous alloy
