SWRS82B热镀锌钢丝力学性能不合格原因分析  

Factors analysis on disqualification of mechanical properties for SWRS82B hot dip galvanizing steel wire

作　　者：张磊[1,2] 孙建林 张芳[2] 李兵 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]邢台钢铁有限责任公司,邢台054027

出　　处：《塑性工程学报》2016年第5期103-106,113,共5页Journal of Plasticity Engineering

摘　　要：通过力学性能测试、光学显微镜和扫描电镜显微组织观察等手段,分析了SWRS82B热镀锌钢丝力学性能不合格的具体原因。结果表明,组织不均、粗晶及过量贝氏体的生成是镀锌钢丝屈服强度和塑性下降的主要原因。可以通过适当降低Cr元素含量或者通过改善控轧控冷工艺参数来改善SWRS82B的综合力学性能。The factors on the disqualification of mechanical properties for SWRS82 Bhot dip galvanizing（HDG）steel wire were analyzed by mechanical property test,photology-microscope（OM）and scanning electron microscope（SEM）.The results indicate that non-uniform microstructure,coarse-grains and excessive Bainite are the main reasons for reducing the yield strength and plasticity.Thus,it is useful to decrease the content of Cr or optimize the controlled rolling and cooling parameters for improving the mechanical properties of SWRS82 Bhot dip galvanizing steel wire.

关 键 词：SWRS82B 热镀锌 力学性能 贝氏体 屈服强度 塑性 

分 类 号：TG142.12[一般工业技术—材料科学与工程]