Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite

Hongwang Zhang; Yuhui Wang; Yan Peng; Pinwen Zhu; Jianhua Liu; Zongqiang Feng; Guilin Wu; Xiaoxu Huang

doi:10.1080/21663831.2019.1612792

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Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite

Original Report | 更新时间：2026-08-19

- Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite
- Materials Research Letters Vol. 7, Issue 9, Pages: 354-360(2019)
- 作者机构：
  
  1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical Engineering Yanshan University Qinhuangdao People’s Republic of China
  2. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical Engineering Yanshan University
  3. State Key Laboratory of Superhard Materials College of Physics Jilin University
  4. State Key Laboratory of Metastable Materials Science and Technology Yanshan University
  5. College of Materials Science and Engineering Chongqing University
  6. College of Materials Science and Engineering Chongqing University Chongqing People’s Republic of China
  7. Department of Mechanical Engineering Technical University of Denmark
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2019.1612792
  CLC：
- Online First：07 May 2019，
  
  Published：2019
- 稿件说明：
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Hongwang Zhang, Yuhui Wang, Yan Peng, et al. Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite[J]. Materials Research Letters, 2019, 7(9): 354-360.
DOI：

Hongwang Zhang, Yuhui Wang, Yan Peng, et al. Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite[J]. Materials Research Letters, 2019, 7(9): 354-360. DOI： 10.1080/21663831.2019.1612792.

摘要

Abstract

BSTRACTMartensitic transformation can easily induce a maximum hardness value of 800–900 HV (Vickers hardness) for steels with carbon contents of 0.6 wt.% and above. However

the occurrence of martensitic transformation in pure iron requires exceptionally high cooling rates (10

–10

°C/s)

and the maximum achievable hardness is only about 150 HV. Here we report an extreme hardness of 830 HV in pure iron obtained through high pressure induced martensitic transformation at a rather slow cooling rate of just 10°C/s. This unprecedented strength originates from the formation of twin-related martensitic laths with an average thickness of 3.8 nm.

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Related Institution

a State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing

b Institute of Materials Research Beijing Beiye Advanced Materials Co. Ltd

a Key Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering Jilin University

b State Key Laboratory of Metastable Materials Science and Technology & School of Materials Science and Engineering Yanshan University Qinhuangdao People’s Republic of China

d School of Materials Science and Engineering Hebei University of Technology

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