SWRS82B钢盘条的显微组织对力学性能的影响  

Effect of microstructure on mechanical properties of SWRS82B steel wire rod

作　　者：杨峰[1] 孙玉领[2] 

机构地区：[1]贵州师范大学材料与建筑工程学院,贵州贵阳550001 [2]贵州大学材料与冶金学院,贵州贵阳550003

出　　处：《金属热处理》2013年第5期104-107,共4页Heat Treatment of Metals

基　　金：贵州省科学技术基金项目(黔科合J字LKS[2010]26号)

摘　　要：采用盐浴等温冷却和风机连续冷却,SWRS82B钢热轧盘条能获得珠光体团尺寸7.58μm、片层间距201 nm的均匀细小索氏体组织;随着珠光体片层间距的增大,盘条抗拉强度Rm、伸长率A等力学性能指标降低;细小的珠光体片层间距使盘条具有更好的综合力学性能,有利于提高钢丝拉拔成材率和获得高性能钢丝绳。Fine and uniform sorbite microstructure with pearlite colony size 7.58 μm and pearlite lamellar spacing 201 nm can be obtained for SWRS82B steel wire rod by salt bath isothermal cooling and continuous forced air cooling. The tensile strength Rn, and elongation A of the steel wire rod reduce with the increase of pearlite lamellar spacing. Smaller pearlite lamellar spacing lead to that the wire rod has preferable meehanical properties, and the wire drawing qualified rate can be improved and high-performance wire rope be obtained.

关 键 词：SWRS82B钢盘条 热处理 微观组织 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]