重庆大学学报：自然科学版2012，Vol.35Issue(7)：72-76,5.
氮含量对SWRH82B盘条组织和性能的影响
Effect of nitrogen on microstructure and properties of SWRH82B wire rod
摘要
Abstract
The microstructure,mechanical properties,tensile fractures and the precipitation of the second phase of vanadium microalloyed wire rods with different nitrogen contents are studied by hydraulic universal testing machine,scanning electron microscopy（SEM） and transmission electron microscopy（TEM）.The results show that the interlamellar spacing of pearlite is smaller in high nitrogen steel;the high nitrogen steel has higher yield strength,tensile strength and lower elongation and reduction of area;there are more inclusions on the tensile fracture surfaces of the high nitrogen steel;and in high nitrogen steel,the size of precipitation,mainly precipitating at dislocation or the boundary of austenite,is finer than that of low nitrogen steel,what is more,fine V（C,N） particles are concluded in the precipitations.关键词
盘条/组织/力学性能/拉伸断口/第二相Key words
wire rod/microstructure/mechanical properties/tensile fractures/second phase分类
矿业与冶金引用本文复制引用
盛光敏,吴莉莉,邓永强,魏福龙,李正嵩,张东升,杨茂麟..氮含量对SWRH82B盘条组织和性能的影响[J].重庆大学学报：自然科学版,2012,35(7):72-76,5.基金项目
国家科技支撑计划项目 （）
