Stretchability and drawability of twinning-Induced plasticity steel-Cored layer steel sheets

被引：5

作者：

Kim, J. G. ^{[1
]}

Baek, S. M. ^{[1
]}

Yoon, J. I. ^{[1
]}

Seo, M. H. ^{[2
]}

Cho, W. T. ^{[3
]}

Chin, K. -G. ^{[4
]}

Lee, S. ^{[1
]}

Kim, H. S. ^{[1
,5
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 37673, South Korea

[2] POSCO Tech Labs, Incheon 21985, South Korea

[3] POSCO, Tech Res Labs, HIMASS Res Project Team, Gwangyang 57807, South Korea

[4] Pohang Univ Sci & Technol POSTECH, GIFT, Pohang 37673, South Korea

[5] Pohang Univ Sci & Technol POSTECH, Ctr High Entropy Alloys, Pohang 37673, South Korea

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2017年 / 250卷

基金：

新加坡国家研究基金会;

关键词：

Layered material; Steels; Sheet formability; Tensile test; Anisotropy; STRAIN-RATE SENSITIVITY; 3-LAYER STEEL; TWIP; DUCTILITY; STRENGTH;

D O I：

10.1016/j.jmatprotec.2017.08.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the qualCONVERSION(0ities of sheet formability (i.e., stretchability and drawability), of twinning-induced plasticity (TWIP), steel-cored thr$ee-layer steel sheets were investigated in terms of tensile parameters (i.e., strain hardening exponent, strain rate sensitivity, normal anisotropy, mean R-value, and total elongation). The tensile parameters of TWIP steel-cored three-layer steel sheets follow the force-based rule of mixtures. The limit drawing ratio, the measure of drawability, of the three-layer steel sheet was proportional to the mean R-value and the strain rate sensitivity while the limit dome height (LDH), the measure of stretchability, could not be correlated with any tensile parameters. The LDH of the TWIP steel-cored layer sheet was superior to that of the single layer due to the inhibition of serration in the TWIP steel-core during the Erichsen test.

引用

页码：357 / 362

页数：6

共 23 条

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