温度和变形量对27SiMn钢组织影响的热模拟研究  

Experimental Study of Hot Simulation on Effect of Deformation and Temperature on Structure of Steel 27SiMn

作　　者：杨忠[1,2] 刘雅政[1] 王海波[1] 张燕东 王海龙 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]西宁特殊钢集团公司,西宁810005

出　　处：《特殊钢》2014年第1期46-48,共3页Special Steel

摘　　要：采用Gleeble1500热模拟试验机研究了煤机用钢27SiMn（／％：0．27C，1．20Si，1．25Mn，0．015Mo，0．021Ti）热轧中190mm棒材的变形量（10％～50％）和温度（850—1000℃）对钢中珠光体、铁素体尺寸和比例的影响。结果表明，随变形量和变形温度的增加，钢中晶粒尺寸减小，尺寸均匀度增加；当27SiMn钢在950℃进行30％形变时，珠光体晶粒尺寸为18—42μm，平均尺寸为28μm，珠光体占54％。The effect of deformation （ 10% - 50% ） and temperature （850 - 1 000 ℃ ） on peadite, ferrite size and ratio in hot rolled q5190 mm product of steel 27SiMn （/% ： 0. 27C, 1.20Si, 1.25Mn, 0. 015Mo, 0. 021Ti） for coal ma- chine has been studied by using Gleeble-1500 thermal simulator. Results show that with increasing deformation and temper- ature the size of grains in steel decreases and the homogenization of grain size increases ; as the steel deforms at 950 ℃ with deformation 30%, the grain size of pearlite in steel is 18 ×42 μm, the average size is 28 μm and the pearlite accounts to 54% of the total structure in steel 27SiMn.

关 键 词：煤机用钢27SiMn 大棒材 变形量 温度 珠光体 铁素体 

分 类 号：TF142.1[冶金工程—冶金物理化学]