Microstructure Evolution as an Effect of Strain Reversal During the Hot Deformation of Microalloyed Steels

摘要：

Susceptibility of the steel for further cold processing strongly depends on the whole prior history of deformation in the hot working regime. In the industrial hot working processes, e.g. at the roughing stage of hot rolling,or forging, material undergoes complex deformation modes that leads to gradients of both microstructure and properties across the deformed cross-section.Torsion and multiaxial compression tests with different amounts of strain reversals were conducted at elevated temperatures to study the effect of applied strain path on the phenomena occurring during microstructure evolution of Nb-microalloyed steels. Gathered results will provide data for the modification of existing constitutive equations that mostly do not account for the strain path changes. Better through-process modelling will then enable to achieve better properties and quality of the products for further cold processing.

关键词： strain reversal strain path history microstructure microalloyed steel

作者: MUSZKA Krzysztof SUN Lin PALMIERE Eric MAJTA Janusz

作者单位: AGH University of Science and Technology,Mickiewicza 30,30-059 Krakow,Poland;IMMPETUS, University of IMMPETUS,University of Sheffield,Mappin St.,S1 3JD Sheffield,United Kingdom AGH University of Science and Technology,Mickiewicza 30,30-059 Krakow,Poland

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: 221-224

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）