The Microstructure and Properties of Vanadium-Bearing DP980 Steels Processed with Continuous Galvanizing Line Simulations
A study is being conducted of additions of the microalloying elements Nb,V and V-N to a low carbon,highstrength (980 grade) Dual-Phase steel that was processed using a CGL simulation.In this study,compositions with a common base but containing various additions of V or Nb with or without high N were designed and subjected to Gleeble simulations of different galvanizing(GI),galvannealing(GA) and super cooling processing.These experiments were supplemented with additional heat treatments performed using a quartz filament furnace.The results revealed that the phase balance (martensite-bainite-ferrite) was strongly influenced by the different microalloying additions,while the strengths of each phase were somewhat less affected.UTS levels of 1100MPa,along with good levels of ductility and work hardening,were measured in steels containing less than 0.1%C and 1.75%Mn.The results of this program will be presented and discussed.
Microalloyed dual-phase steels High strength Ductility Work hardening n-values Yield/Tensile ration Intercritical annealing Galvanizing Galvannealing CG Lines Simulations
Yu Gong Xiaojun Liang Mingjian Hua A. J. DeArdo
Basic Metals Processing Research Institute,Department of Mechanical Engineering and Materials Science,University of Pittsburgh,Pittsburgh,PA,15261,USA
国际会议
The 2nd International Symposium on Automobile Steel (第二届汽车用钢生产及应用技术国际研讨会)
鞍山
英文
122-125
2013-05-21（万方平台首次上网日期，不代表论文的发表时间）