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Effects of alloying elements on the microstructure and mechanical properties of as-cast Cr12MoV cold-working die steel

  • Kai Fang , Xun Guo , Feng Huang EMAIL logo , Jianxin Zhou , Qingyan Xu and Xunpeng Qin
Published/Copyright: February 25, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 113 Issue 2

Abstract

A group of orthogonal experiments were conducted to investigate the effects of alloying elements on the microstructure and mechanical properties of as-cast Cr12MoV cold-working die steel. The results indicate that the solidification structures are mainly composed of equiaxed grains with reticular eutectic carbides precipitated at grain boundaries. While Mo has little effect on grain size, the structures could be effectively refined by V and Ce, and Ce addition is beneficial for breaking up the grain boundary eutectic networks. The compressive yield strength and micro-hardness increase with increasing V content and decreasing Ce content. For Mo, the yield strength and micro-hardness reach their maximum values at 0.5 wt.% and 0.9 wt.% respectively. Overall, considering the grain size number, micro-hardness and yield strength, the optimal contents of Mo, V and Ce are given.

Keywords: Alloying element; Cold-working die steel; Mechanical property; Microstructure
Corresponding author: Feng Huang, School of Automotive Engineering, Hubei Key Laboratory of Advanced Technology of Automotive Components, Wuhan University of Technology, Luoshi Road 205, Hongshan District, Wuhan, Hubei, 430070, P.R. China; and Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan, P.R. China, E-mail:

  1. Author contribution: Authors Kai Fang and Xun Guo contributed equally to the research in this paper. All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This project was supported by National Natural Science Foundation of China (51501136) and State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, China (P2016-06).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-08-09
Revised: 2021-11-25
Accepted: 2021-10-20
Published Online: 2022-02-25
Published in Print: 2022-02-23

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijmr-2021-8509
Keywords for this article
Alloying element; Cold-working die steel; Mechanical property; Microstructure

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Corrosion behavior of hydroxyapatite coated AZ31 and AZ91 Mg alloys by electrostatic spray coating
  4. Radiation synthesis and characterization of polymeric wet adhesives for attracting and trapping insects
  5. Promoting the effect of cationic substitution on thermal stability and redox properties of new synthesized Keggin type lacunary polyoxometalates (L-POMs) Ni2.5PMo11 M(H2O)O39 (M = Co, Fe, Cu, Zn)
  6. Investigation of the influence of the energy conditions of pulsed plasma-chemical synthesis on the morphological and structural properties of copper-containing silica-based nanocomposites
  7. A computational material study of HoB6 and Co/MgO–HoB6: heavy rare-earth metal hexaborides
  8. Effects of alloying elements on the microstructure and mechanical properties of as-cast Cr12MoV cold-working die steel
  9. The effects of rotational and traverse speeds and SiC particles on the microstructure and mechanical properties of AA 5052 in friction stir welding
  10. Influence of hot extrusion on the microstructure and mechanical properties of Al2O3/7075 aluminum matrix composites
  11. Short Communication
  12. Fabrication of magnetic core–shell Fe nanowires by electrochemical deposition
  13. News
  14. DGM – Deutsche Gesellschaft für Materialkunde
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