Strain Influence on the Precipitation Kinetic Nb-V Microalloyed HSLA Steel

被引：0
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作者：
Cartaya Elio Armando [1 ,2 ]
Cabrera Jos Mara [1 ,3 ]
Prado Jos Manuel [1 ,3 ]
机构：
[1] Departamento de Ciencia de Materiales e Ingeniería Metalúrgica,ETSEIB,Universidad Politécnica de Catalu a AvDiagonal , Barcelona,Spain
[2] Departamento de Manufactura y Materiales,Facultad de Ingeniería Mecánica,Universidad de Oriente, Santiago de Cuba,Cuba
[3] Fundación CTM Centro Tecnológico,AvBases de Manresa ,
来源：
Journal of Iron and Steel Research(International) | 2011年 / 18(S1)卷 / International期
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摘要：
The strain induced effect on the precipitation kinetics of a high strength low alloy (HSLA) steel microalloyed with Nb-V was investigated.The stress relaxation method was employed to determine the dependence of the precipitation-time-temperature curves (PTT) on previous strain.Relaxation tests were performed over a temperature range of 850 to 1150 oC at a constant strain rate of 0.1 s-1 at three deformation levels,namely 5,15 and 25 pct.Field emission scanning electron microscopy (FESEM) was used to study the progress of precipitation on samples obtained by interrupted relaxation test at different times.Results display the acceleration kinetics at increasing strain.Theoretical models are discussed and compared with the present experimental results.
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页码：278 / 281
页数：4
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