INFLUENCE OF NON-UNIFORM WATER COOLING ON THE SHAPE OF ROLLED H-SHAPED BEAM
(0) A Quenching & Self Tempering(QST)treatment is one of advanced thermo-mechanically controlled processes to develop high strength and good toughness H shaped beams.However,the QST has sometimes caused their abnormal H shape called “off-squareness” due to non-uniform rapid cooling.In this paper,a correlation between the non-uniform rapid cooling and shape deformation is observed by QST test equipment.In order to understand the mechanism,deformation behaviors are analyzed by a commercial software package,DEFORM,coupled with thermal expansion and volumetric shrinkage during phase transformation in accelerated cooling,its reliability was evaluated with direct measure of deformation.
H-shaped beam QST off-squareness phase transformation
Jung Seung Hoon Yun Myung Seok Koo Bon Seung Lee Kwang Keun
Hyundai Steel Technical Research Center,1480,Dangjin-si,Chungcheongnam-do,343-823,Korea
国内会议
杭州
英文
411-417
2015-11-11（万方平台首次上网日期，不代表论文的发表时间）