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.
出处
《特殊钢》
北大核心
2014年第1期46-48,共3页
Special Steel
