摘要
对比分析了热轧H型钢翼缘和腹板的室温拉伸性能、低温冲击性能和显微组织的差别。结果表明,腹板屈服强度、抗拉强度和低温冲击吸收功高于翼缘,尤其是低温冲击吸收功提高明显;腹板晶粒呈扁平状,但尺寸细小且分布均匀.其综合力学性能优于晶粒呈等轴状的翼缘。
The difference of room temperature tensile properties, low temperature impact properties and microstructure of flange and web of hot-rolled H-section steel were compared and analyzed. The results show that the yield strength, tensile strength and low temperature impact absorption energy of the web are higher than those of the flange, especially the low temperature impact absorption energy increases obviously. The web grain is flat, but the size is small and the distribution is uniform. Its comprehensive mechanical properties are superior to those of the flange with equiaxed grain.
作者
夏勐
邢军
吴保桥
彦井成
XIA Meng;XING Jun;WU Baoqiao;YAN Jingcheng(Technical Center of Maanshan Iron & Steel Co.,Ltd.,Maanshan 243000,China)
出处
《热加工工艺》
CSCD
北大核心
2018年第23期48-51,共4页
Hot Working Technology
基金
国家重点研发计划资助项目(2017YFB0304700,2017YFB0304703)
关键词
热轧H型钢
力学性能
晶粒尺寸
hot-rolled H-section steel
mechanical property
grain size
