The Evolution and Thermodynamic Analysis of Inclusions in Gear Steel after Magnesium Treatment

DOI

10.2991/icmeim-17.2017.86How to use a DOI?

Keywords

Magnesium Treatment, Complex Deoxidation, Free-cutting Gear Steel, Thermodynamics

Abstract

The influence of different magnesium content on the inclusions in steel was studied under the condition of the same molten steel at 1873 K. The results show that, after the magnesium treatment, the tiny MgO•Al2O3 inclusions could become the nucleus of MnS in solidification of liquid steel, which weakens the large number of MnS precipitates in grain boundaries. The change of the oxide core in the composite sulfides with the increase of magnesium content is: Al2O3 MgO•Al2O3 MgO•Al2O3+MgO MgO+MgS.This evolution mechanism can provide certain reference for the application of magnesium treatment in production practice.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Jie Xu
AU  - Qian-Kun Yang
AU  - Juan Cheng
AU  - Zong-Ze Huang
AU  - Jin-Min An
AU  - Jian-Xun Fu
PY  - 2017/02
DA  - 2017/02
TI  - The Evolution and Thermodynamic Analysis of Inclusions in Gear Steel after Magnesium Treatment
BT  - Proceedings of the 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017)
PB  - Atlantis Press
SP  - 510
EP  - 514
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmeim-17.2017.86
DO  - 10.2991/icmeim-17.2017.86
ID  - Xu2017/02
ER  -