Introducing nano-VC precipitates makes ultrafine bainitic steel a better combination of strength, ductility, and toughness

Zhuanqin Liang; Hongguang Li; Cuicui Chen; Huajun Fu; Xiaoyong Feng; Xinliang Gao; Zhinan Yang; Fucheng Zhang

doi:10.1080/21663831.2024.2386439

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Introducing nano-VC precipitates makes ultrafine bainitic steel a better combination of strength, ductility, and toughness

Original Reports | 更新时间：2026-08-19

- Introducing nano-VC precipitates makes ultrafine bainitic steel a better combination of strength, ductility, and toughness
- Materials Research Letters Vol. 12, Issue 10, Pages: 756-763(2024)
- 作者机构：
  
  1. a National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan University
  2. b College of Metallurgy and Energy North China University of Science and Technology Tangshan People’s Republic of China
  3. c Hebei Iron and Steel Laboratory North China University of Science and Technology
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2024.2386439
  CLC：
- Online First：06 August 2024，
  
  Published：2024
- 稿件说明：
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Zhuanqin Liang, Hongguang Li, Cuicui Chen, et al. Introducing nano-VC precipitates makes ultrafine bainitic steel a better combination of strength, ductility, and toughness[J]. Materials Research Letters, 2024, 12(10): 756-763.
DOI：

Zhuanqin Liang, Hongguang Li, Cuicui Chen, et al. Introducing nano-VC precipitates makes ultrafine bainitic steel a better combination of strength, ductility, and toughness[J]. Materials Research Letters, 2024, 12(10): 756-763. DOI： 10.1080/21663831.2024.2386439.

摘要

Abstract

Simultaneously enhancing the strength

plasticity

and toughness of metal materials has been a prominent research objective. In this study

the precipitation of nano-scale vanadium carbide particles at a lower tempering temperature is controlled to achieve three key benefits: reducing lattice distortion in bainitic ferrite

strengthening through precipitation

and enhancing the toughness of bainitic ferrite

while also maintaining the content and stability of retained austenite. The adopted procedure increases the comprehensive mechanical properties of steel by 17%. In particular

the room-temperature impact toughness is increased by 41%. This comprehensive microstructure optimization endows bainitic steel with an excellent combination of mechanical properties.

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Related Institution

d Department of Materials Science and Engineering City University of Hong Kong

c Institute of Materials Modification and Modeling School of Materials Science and Engineering Shanghai Jiao Tong University

b State Key Laboratory of Powder Metallurgy Central South University

a Department of Mechanical Engineering City University of Hong Kong Hong Kong People’s Republic of China

a Department of Mechanical Engineering City University of Hong Kong

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