Strain Hardening Behavior of Dual-Phase Steels

被引：103
|
作者：
Colla, V. [1 ]
De Sanctis, M. [2 ]
Dimatteo, A. [1 ]
Lovicu, G. [2 ]
Solina, A. [2 ]
Valentini, R. [2 ]
机构：
[1] Scuola Super Univ & Perfezionamento St Anna, Pisa, Italy
[2] Univ Pisa, Dipartimento Ingn Chim Chim Ind & Sci Mat, Pisa, Italy
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2009年 / 40A卷 / 11期
关键词：
MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; CONSTITUTIVE-EQUATIONS; TENSILE; CURVES; SHEET;
D O I：
10.1007/s11661-009-9975-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A detailed qualitative and quantitative examination of the microstructure and mechanical properties of three different classes of DP600 and DP450 dual-phase (DP) steels was carried out. The tested DP steels are characterized by different alloying elements: aluminum, boron, and phosphorus. Among them, aluminum DP steels showed the lowest percentages of hard phases, while phosphorus DP steels exhibited the highest resistance values. The Hollomon, Pickering, Crussard-Jaoul (CJ), and Bergstrom models were used to reproduce the strain hardening behavior of DP steels. Relationships that correlate the fitting parameters with the chemical composition and the thermal cycle parameters were found, and the predictive abilities of different models were evaluated. The Pickering equation, among the tested models, is the best one in the reproduction of the experimental stress-strain data.
引用
收藏
页码：2557 / 2567
页数：11
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