Influence of austenite grain size on recrystallisation-precipitation interaction in a V-microalloyed steel

被引：31

作者：

Quispe, A.

Medina, S. F.

Gomez, M.

Chaves, J. I.

机构：

[1] Natl Ctr Met Res, CENIM, Madrid 28040, Spain

[2] Natl Univ Jorge Basadre, Tacna, Peru

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 447卷 / 1-2期

关键词：

recrystallisation; strain induced precipitation; austenite; grain size;

D O I：

10.1016/j.msea.2006.11.036

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

By means of torsion tests using small specimens, the influence of austenite grain size on strain induced precipitation kinetics has been determined in a vanadium microalloyed steel. Determination of recrystallisation-precipitation-time-temperature (RPTT) diagrams for two austenite grain sizes allows values of the aforementioned magnitudes to be determined. An ample discussion is made of the quantitative influence found and its relation with nucleation and growth mechanisms of precipitates. The results are compared with the quantitative influence exerted by the other variables, reaching the conclusion that the austenite grain size has a notable influence on strain induced precipitation kinetics which should not be underestimated. Finally, the influence of austenite grain size is included in a strain induced precipitation model constructed by the authors of this work and which also takes into account the other aforementioned variables. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：11 / 18

页数：8

共 35 条

[1] EFFECT OF MOLYBDENUM, NIOBIUM, AND VANADIUM ON STATIC RECOVERY AND RECRYSTALLIZATION AND ON SOLUTE STRENGTHENING IN MICROALLOYED STEELS [J].