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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.5 P.797~804

10.1631/jzus.2007.A0797


Effects of finishing rolling temperatures and reduction on the mechanical properties of hot rolled multiphase steel


Author(s):  LI Zhuang, WU Di

Affiliation(s):  Department of Materials Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang 110034, China; more

Corresponding email(s):   Lizhuang20047@163.com

Key Words:  Hot rolling conditions, Retained austenite, Hot rolled multiphase steels, Mechanical properties


LI Zhuang, WU Di. Effects of finishing rolling temperatures and reduction on the mechanical properties of hot rolled multiphase steel[J]. Journal of Zhejiang University Science A, 2007, 8(5): 797~804.

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author="LI Zhuang, WU Di",
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%T Effects of finishing rolling temperatures and reduction on the mechanical properties of hot rolled multiphase steel
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A0797

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T1 - Effects of finishing rolling temperatures and reduction on the mechanical properties of hot rolled multiphase steel
A1 - LI Zhuang
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J0 - Journal of Zhejiang University Science A
VL - 8
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SP - 797
EP - 804
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2007.A0797


Abstract: 
Effects of finishing rolling temperatures and reduction on the mechanical properties of hot rolled multiphase steel were investigated. Thermo-mechanical control processing (TMCP) was conducted by using a laboratory hot rolling mill, in which three different kinds of finishing rolling temperatures and reduction and various austempering times were applied. The results showed that polygonal ferrite, granular bainite and larger amount of stabilized retained austenite can be obtained by controlled rolling processes, and that the strain-induced transformation to martensite from the retained austenite can occur gradually when the steel is deformed during tensile test. mechanical properties increase with decreasing finishing rolling temperature and increasing amount of deformation. The most TRIP (transformation induced plasticity) effect, and ultimate tensile strength (UTS), total elongation (TEL) and the product of ultimate tensile strength and total elongation (UTS×TEL) are obtained at 20 min.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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