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Licensed Unlicensed Requires Authentication Published by De Gruyter February 21, 2022

Effect of heat treatment on microstructure and properties of modified hypereutectic high chromium cast iron

  • Zhengyang Chen

    Zhengyang Chen, born in 1997, is a master candidate of Beijing University of technology, China. He obtained his bachelor degree at the School of Materials Science and Engineering at Henan University of Science and Technology in 2019. His research interests mainly focus on wear-resistant alloy materials.

    , Qiang Guo

    Qiang Guo, born in 1994, is a master candidate of Beijing University of Technology, China. He obtained his bachelor degree at the School of Materials Science and Engineering at Inner Mongolia University of Technology in 2017. His research interests mainly focus on wear-resistant alloy materials.

    , Hanguang Fu EMAIL logo and Xiaohui Zhi
From the journal Materials Testing

Abstract

The effect of heat treatment on the microstructure, hardness and wear resistance of modified hypereutectic high chromium cast iron (HCCI) was investigated. The results show that the quenching treatment partially dissolves the edges of the primary carbides, and the sharp corners become rounded and blunt. As the quenching temperature increases, the carbide re-dissolves into the matrix, and the hardness and wear resistance first increase and then decrease. The hardness and wear resistance are the best when quenched at 1000 °C. After tempering, the martensite is transformed into tempered martensite, and the precipitation of secondary carbides increases. As the tempering temperature increases, the secondary carbides gradually become coarser. When the tempering temperature is 500 °C, the hypereutectic HCCI shows the highest hardness and the best wear resistance. When tempered at 400 °C, hypereutectic HCCI shows the best erosion and wear resistance.


Corresponding author: Hanguang Fu, Beijing University of Technology, Beijing, China, E-mail:

Award Identifier / Grant number: 52075010

Award Identifier / Grant number: E2019210025

About the authors

Zhengyang Chen

Zhengyang Chen, born in 1997, is a master candidate of Beijing University of technology, China. He obtained his bachelor degree at the School of Materials Science and Engineering at Henan University of Science and Technology in 2019. His research interests mainly focus on wear-resistant alloy materials.

Qiang Guo

Qiang Guo, born in 1994, is a master candidate of Beijing University of Technology, China. He obtained his bachelor degree at the School of Materials Science and Engineering at Inner Mongolia University of Technology in 2017. His research interests mainly focus on wear-resistant alloy materials.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The authors would like to thank the financial support for this work from National Natural Science Foundation of China (52075010), and Natural Science Foundation of Hebei Province, China (E2019210025).

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

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Published Online: 2022-02-21
Published in Print: 2022-01-27

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