Microstructure and Mechanical Properties of Ultra-High Strength Pearlitic Wire in Single-pass Cold Drawing

被引：0

作者：

Wei, M. Z. ^{[1
]}

Chen, Z. H. ^{[1
]}

Zhang, X. M. ^{[1
]}

Wang, D. P. ^{[1
]}

Sun, K. ^{[1
]}

Zhou, J. ^{[1
,2
]}

Xue, F. ^{[1
,2
]}

机构：

[1] Southeast Univ, Jiangsu Key Lab Adv Metall Mat, Nanjing 211189, Jiangsu, Peoples R China

[2] Nanjing Inst Technol, Jiangsu Key Lab Adv Struct Mat & Applicat Technol, Nanjing 211189, Jiangsu, Peoples R China

来源：

2018 3RD INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS RESEARCH AND MANUFACTURING TECHNOLOGIES (AMRMT 2018) | 2018年 / 436卷

基金：

中国国家自然科学基金;

关键词：

STEEL; DEFORMATION;

D O I：

10.1088/1757-899X/436/1/012001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of compression ratio on the microstructure and mechanical properties of ultra-high strength pearlitic wire in single-pass cold drawing has been studied. The ultra-high tensile strength cord steel with a carbon content of 1.02 wt% were pulled through a single-pass drawing to different compression ratios (0-30%). With the increase of the single-pass compression ratio, the tensile strength, microhardness and torsional properties of the steel wire increased gradually. When the compression rate increased from 0 to 30%, the tensile strength of the steel wire increased from 1263.4 MPa to 1553.7 MPa, the torsional strength of steel wire increased from 1126.83 MPa to 1279.66 MPa. In the single-pass drawing process, the strengthening mechanism of the pearlitic steel wire are mainly the work hardening caused by the dislocation slip in the ferrite, and the fine grain strengthening caused by the decrease of the pearlite sheet spacing.

引用

页数：6

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