Influence of Aluminium on Hardenability of High Nitrogen 18CrMnB Steels

Wei Jixiang; Li Wenqing; Li Yaowen; Xu Hongxin

doi:10.13374/j.issn1001-053x.1991.02.008

Volume 13 Issue 2

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Wei Jixiang, Li Wenqing, Li Yaowen, Xu Hongxin. Influence of Aluminium on Hardenability of High Nitrogen 18CrMnB Steels[J]. Chinese Journal of Engineering, 1991, 13(2): 141-145. doi: 10.13374/j.issn1001-053x.1991.02.008

Citation:

Wei Jixiang, Li Wenqing, Li Yaowen, Xu Hongxin. Influence of Aluminium on Hardenability of High Nitrogen 18CrMnB Steels[J]. Chinese Journal of Engineering, 1991, 13(2): 141-145. doi: 10.13374/j.issn1001-053x.1991.02.008

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Influence of Aluminium on Hardenability of High Nitrogen 18CrMnB Steels

doi: 10.13374/j.issn1001-053x.1991.02.008

1. Department of Materials Science and Engineering;
2. Taiyuan Iron and Steel Company

Received Date: 1990-05-16
Available Online: 2021-10-23

Abstract

Abstract

The distribution of B and N in 18CrMnB steel during the hardening at 870℃ is investigated by means of the microphotography, and CB is used as a parameter to show the distribution of N in the steel. The results obtained are as follows: the hardenability increases with parameter C_β, and if its value is between 14.5 though 27.5, the high hardenability of 18CrMnB steel is obtained. C_β is a useful parameter for controlling the hardenability of this steel.
- hardenability,
- half-martensite distance,
- parameter C_β