Precipitation Kinetics on a Nb-V Microalloyed Steel

被引：1
|
作者：
Cartaya Elio Armando [1 ,2 ]
Cabrera José María [1 ,3 ]
Prado José Manuel [1 ,3 ]
机构：
[1] Departamento de Ciencia de Materiales e Ingeniería Metalúrgica,ETSEIB,Universidad Politécnica de Catalua Av.Diagonal 647,08028 Barcelona,Spain
[2] Departamento de Manufactura y Materiales,Facultad de Ingeniería Mecánica,Universidad de Oriente,Santiago de Cuba,Cuba  3. Fundación CTM Centro Tecnológico,Av.Bases de Manresa 1,08242 Manresa,Spain
来源：
Journal of Iron and Steel Research(International) | 2011年 / 18卷 / S1期
关键词：
stress relaxation; microalloyed steels; precipitation; FESEM;
D O I：
10.13228/j.boyuan.issn1006-706x.2011.s1.040
中图分类号：
TG142.33 [合金钢];
学科分类号：
080502 ;
摘要：
The precipitation kinetics in a low carbon high strength low alloy (HSLA) steel,microalloyed with V+Nb has been studied by using the stress relaxation method.This technique was carried out in a dynamic dilatometer and allows to determine the onset and finishing precipitation times in hot deformed austenite.The evolution of the precipitates was also observed using field emission scanning electron microscopy (FESEM) on samples quenched at different times at given temperatures.Discussion is completed with the predictions by the thermodynamic software FactSage to identify stable precipitate phases under equilibrium conditions.Results confirm the feasibility of the stress relaxation technique as an efficient method for investigating precipitation kinetics.
引用
收藏
页码：148 / 153
页数：6
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