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Metals 2017, 7(2), 50; doi:10.3390/met7020050

Hot Deformation Behavior of As-Cast 30Cr2Ni4MoV Steel Using Processing Maps

1,2
,
1,2,* and 1,2
1
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
2
Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Academic Editors: Myoung-Gyu Lee and Yannis P. Korkolis
Received: 5 December 2016 / Revised: 18 January 2017 / Accepted: 19 January 2017 / Published: 9 February 2017
(This article belongs to the Special Issue Advances in Plastic Forming of Metals)
View Full-Text   |   Download PDF [9886 KB, uploaded 9 February 2017]   |  

Abstract

The hot deformation behavior of as-cast 30Cr2Ni4MoV steel was characterized using processing maps in the temperature range 850 to 1200 °C and strain rate range 0.01 to 10 s−1. Based on the obtained flow curves, the power dissipation maps at different strains were developed and the effect of the strain on the efficiency of power dissipation was discussed in detail. The processing maps at different strains were obtained by superimposing the instability maps on the power dissipation maps. According to the processing map and the metallographic observation, the optimum domain of hot deformation was in the temperature range of 950–1200 °C and strain rate range of 0.03–0.5 s−1, with a peak efficiency of 0.41 at 1100 °C and 0.25 s−1 which were the optimum hot working parameters. View Full-Text
Keywords: 30Cr2Ni4MoV steel; hot deformation; processing map; microstructure 30Cr2Ni4MoV steel; hot deformation; processing map; microstructure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhou, P.; Ma, Q.; Luo, J. Hot Deformation Behavior of As-Cast 30Cr2Ni4MoV Steel Using Processing Maps. Metals 2017, 7, 50.

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