摘要
Abstract
The effect of deformation drawing and the different heat treatment on microstructure and mechanical properties of the fluid machinery steel pipe was studied,and the fracture morphology of the steel pipe with furnace cooling and air cooling mode was prepared.The results show that with the increase of drawing deformation,the tensile strength,yield strength and hardness of the steel tube increased,while the elongation decreases gradually.Under the furnace cooling mode,with the increase of heat treatment temperature,tensile strength,yield strength and hardness increase firstly and then decrease,the maximum value in the heat treatment temperature is 880 ℃.Under the air cooling mode,with the increase of heat treatment temperature,tensile strength,yield strength and hardness of steel increase gradually.In the same heat treatment temperature,the tensile strength,yield strength and microhardness are significantly higher with air cooling mode,but the elongation is significantly lower than that with the furnace cooling mode.关键词
流体机械钢管/拔制变形量/热处理/力学性能Key words
fluid mechanical steel pipe/drawing deformation/heat treatment/mechanical properties分类
矿业与冶金
