应用Pillbox模型研究了低碳钢高温变形对先共析铁素体相变形核率的影响,主要依据稳态形核率方法进行计算.为确定变形储能的数值,探讨了变形参数对变形储能的影响.计算结果表明,热变形使铁素体相变起始温度和最大形核率温度升高、相同温度条件下形核率增加、相变孕育期缩短,如进一步控制铁素体晶粒长大,可以起到促进晶粒细化的作用.
参考文献
| [1] | Umemoto M,Tamura I,Otsuka H.Tetsu Hagané,1982;68(Suppl.):1384(梅本 实,田村今男,大冢秀幸.铁と钢,1982;68(增刊):1384) |
| [2] | Ouchi C,Sampei T,Kozasu I.Trans ISIJ,1982; 22:214 |
| [3] | Lange W F Ⅲ,Enomoto M,Aaraonson H I.Metall Trans,1988; 19A:427 |
| [4] | Bergstrom Y.Rev Powder Metall Phys Ceram,1983; (2):79 |
| [5] | Bodin A,Seitsma J,van der Zwaag S.Scr Mater,2001;45:875 |
| [6] | Cahn J W.Acta Metall,1956; 4:449 |
| [7] | Yang Z G,Enomoto M.In:Howe J M,Laughlin D E,Lee J K,eds.,Int Conf on Solid-Solid Phase Transformation in Inorganic Materials,Phoenix,Arizona,USA:TMS,2005:47 |
| [8] | Enomoto M,Lange Ⅲ W F,Aaronson H I.Metall Trans,1986; 17A:1399 |
| [9] | Ungar T.Scr Mater,2004; 51:777 |
| [10] | Godfrey A,Hughes D A.Acta Mater,2000; 48:1897 |
| [11] | Humphreys F J.Scr Mater,2004; 51:771 |
| [12] | Yu Y N.Principle of Metallurgy.Beijing:Metallurgical Industry Press,2000(余永宁.金属学.北京:冶金工业出版社,2000) |
| [13] | Leeuwen Y,Sietsma J.In:Howe J M,Laughlin D E,Lee J K,eds.,Int Conf on Solid-Solid Phase Transformation in Inorganic Materials,Phoenix,Arizona,USA:TMS,2005:855 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%