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Journal of Materials Engineering and Performance

, Volume 27, Issue 11, pp 5769–5777 | Cite as

Achieving Excellent Strength–Ductility and Impact Toughness Combination by Cyclic Quenching in Medium Mn TRIP-Aided Steel

  • Lei Zhang
  • Xingmin Huang
  • Yanhua Wang
  • Yuanbo Guo
  • Guangze Dai
  • Dongsheng Li
Article
  • 107 Downloads

Abstract

A novel heat treatment process combined cyclic quenching (CQ) with austenite reversion treatment (ART) is proposed to obtain high strength–ductility and high-impact toughness combination in Fe-0.18C-8.92Mn-3.43Al (in mass%) steel. The process referred as CQ-ART was designed for accomplishing the following objectives: (i) refine the prior austenite grains during cyclic quenching process, (ii) further obtain the refined austenite–ferrite block and (iii) improve the stabilities of retained austenite with Mn/C enrichment during ART process. The outstanding product of tensile strength and total elongation of CQ-ART-treated steels was 41.53 and 37.39 GPa%, respectively, and higher than the ART steel of 27.45 GPa%. The highest Charpy impact toughness of CQ-ART steel can reach to 221 J, which is mainly attributed to the refined grains and discontinuous transformation-induced plasticity (TRIP) effect.

Keywords

austenite reverted transformation cyclic quenching impact toughness retained austenite TRIP effect 

Notes

Acknowledgments

The authors would like to express their sincere thanks and gratitude to Science and Technology Support Plan in Sichuan Province of China for providing financial support for this work under project of Development and Application of Vanadium and Titanium Microalloyed New Products for High Performance Railway Track.

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Copyright information

© ASM International 2018

Authors and Affiliations

  • Lei Zhang
    • 1
    • 2
  • Xingmin Huang
    • 1
  • Yanhua Wang
    • 1
  • Yuanbo Guo
    • 1
  • Guangze Dai
    • 1
  • Dongsheng Li
    • 3
  1. 1.School of Materials Science and Engineering, and Key, Lab of Advanced Technologies of Materials (Ministry of Education)Southwest Jiaotong UniversityChengduPR China
  2. 2.State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical UniversityXi’anPR China
  3. 3.School of Materials Science and EngineeringJiangsu UniversityZhenjiangPR China

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