[1]陈得友,闵学刚,李龙,等.拉拔方式对高碳钢丝组织性能的影响[J].东南大学学报(自然科学版),2019,49(4):749-756.[doi:10.3969/j.issn.1001-0505.2019.04.019]
 Chen Deyou,Min Xuegang,Li Long,et al.Effects of drawing methods on the microstructure and mechanical properties of high carbon steel wire[J].Journal of Southeast University (Natural Science Edition),2019,49(4):749-756.[doi:10.3969/j.issn.1001-0505.2019.04.019]
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拉拔方式对高碳钢丝组织性能的影响()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
49
期数:
2019年第4期
页码:
749-756
栏目:
材料科学与工程
出版日期:
2019-07-20

文章信息/Info

Title:
Effects of drawing methods on the microstructure and mechanical properties of high carbon steel wire
作者:
陈得友1闵学刚2李龙2冯汉臣1方峰1
1东南大学材料科学与工程学院, 南京 211189; 2江苏省宝钢精密钢丝有限公司, 南通 226114
Author(s):
Chen Deyou1 Min Xuegang2 Li Long2 Feng Hanchen1 Fang Feng1
1School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
2Jiangsu Baosteel Fine Wire & Cord Co., Ltd., Nantong 226114, China
关键词:
高碳钢丝 辊模拉拔 冷拉拔 微观组织 力学性能
Keywords:
high carbon steel wire roller die drawing cold drawing microstructure mechanical property
分类号:
TG142
DOI:
10.3969/j.issn.1001-0505.2019.04.019
摘要:
为探究拉拔方式对高碳钢丝组织性能的影响,采用拉伸试验、SEM、EBSD、XRD、DSC等测试手段,对比研究了辊模拉拔和冷拉拔过程中高碳钢丝的组织及力学性能演变规律.结果表明:与冷拉拔钢丝相比,辊模拉拔钢丝的强度与塑性更优.经辊模拉拔后,钢丝组织形变更协调,片层更薄,形成的〈110〉丝织构更强.残余应力分析表明,当应变量为1.18时,辊模拉拔钢丝表面为残余压应力,冷拉拔钢丝表面为残余拉应力.DSC分析表明,应变量为1.18时,辊模拉拔钢丝在403~491 ℃之间出现放热峰,而冷拉拔钢丝在381~472 ℃之间出现放热峰,这表明辊模拉拔钢丝组织更稳定,形变存储能相对更低.
Abstract:
To explore the effects of drawing methods on microstructure and mechanical properties of high carbon steel wires, the microstructural evolution and mechanical properties of high carbon steel wires during cold drawing and roller-die drawing were investigated by tensile tests, the scanning electron microscope(SEM), electron backscattered diffraction(EBSD), X-ray diffraction(XRD), and the differential scanning calorimeter(DSC). Experimental results show that the steel wire drawn in roller dies is superior to cold drawn steel wire in strength and ductility. The deformation behavior in the steel wires after roller-die drawing is more coordinated than that in cold drawn steel wires, and thinner lamellae and stronger 〈110〉 fiber texture are detected in the roller-die drawing wire. The analysis of residual stress reveals when the drawing strain is 1.18, the residual compressive stress is introduced on the surface of steel wires drawn in roller dies, and conversely the residual tensile stress on the surface of cold drawn steel wires. DSC analysis shows that the exothermic peak of steel wires drawn in roller dies is from 403 ℃ to 491 ℃, while the exothermic peak of cold drawn steel wires is from 381 ℃ to 472 ℃ at the drawing strain of 1.18, which indicates that the steel wires drawn in roller dies have better thermal stability and lower deformation storage capacity.

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备注/Memo

备注/Memo:
收稿日期: 2018-11-02.
作者简介: 陈得友(1992—),男,硕士生;方峰(联系人),男,博士,教授,博士生导师,fangfeng@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51371050)、江苏省333工程资助项目(BRA2018045)、江苏省产学研合作项目(BY2018194)、江苏省科技成果转化资金专项资助项目(BA2017112).
引用本文: 陈得友,闵学刚,李龙,等.拉拔方式对高碳钢丝组织性能的影响[J].东南大学学报(自然科学版),2019,49(4):749-756. DOI:10.3969/j.issn.1001-0505.2019.04.019.
更新日期/Last Update: 2019-07-20