Precipitation kinetics on a Nb–V microalloyed steel

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.

关键词： stress relaxation microalloyed steels precipitation FESEM

作者: CARTAYA Elio Armando CABRERA José María PRADO José Manuel

作者单位: Departamento de Ciencia de Materiales e Ingenieria Metalurgica,ETSEIB, Universidad Politecnica de Ca Departamento de Ciencia de Materiales e Ingenieria Metalurgica,ETSEIB, Universidad Politecnica de Ca

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 301-304

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）