Research on TiN inclusion modification in 20CrMnTi gear steel by rare earth Ce during Si-Ca-Ba-Ce composite deoxidation

被引：0
|
作者：
Liu, Shuang [1 ,2 ,3 ]
Peng, Jun [1 ,2 ,3 ]
Yang, Fan [1 ,2 ,3 ]
Liu, Lixia [1 ,2 ,3 ]
Wang, Jian [1 ,2 ]
Zhang, Fang [1 ,2 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Rare Earth Ind, Baotou, Peoples R China
[2] Inner Mongolia Univ Sci & Technol, Inner Mongolia Key Lab Adv Ceram Mat & Devices, Baotou, Peoples R China
[3] Inner Mongolia Univ Sci & Technol, Key Lab Green Extract & Efficient Utilizat Light R, Minist Educ, Baotou, Peoples R China
来源：
IRONMAKING & STEELMAKING | 2024年
关键词：
Rare earth Ce; composite deoxidation; inclusion; modification; 20CrMnTi gear steel; PRECIPITATION BEHAVIOR; MECHANICAL-PROPERTIES; FRACTURE;
D O I：
10.1177/03019233241273466
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The size and distribution of TiN inclusions in 20CrMnTi gear steel directly affect its service performance. A reasonable method for controlling the size of TiN inclusions is a prerequisite for obtaining high-quality 20CrMnTi gear steel. This study focuses on the modification behaviour of TiN inclusions in 20CrMnTi gear steel under the conditions of Si-Ca-Ba single deoxidation and Si-Ca-Ba-Ce composite deoxidation, and their effects on the fatigue performances of the steels. The results show that after Si-Ca-Ba-Ce composite deoxidation, in addition to TiN inclusions, TiN containing composite inclusions such as Al2O3-TiN and CaAl12O19-TiN are also generated in the steel. When the ratio of Si-Ca-Ba to Ce in the Si-Ca-Ba-Ce composite deoxidiser is 5:1, the effective modification rate of TiN reaches 48.6%, which is better than 44.8% at 7:1 and 45% at 2.4:1, and the average size of the inclusions in the steel is 2.5 mu m, which is better than 2.8 at and 3 mu m at 2.4:1. At this point, the effect of the TiN inclusion modification in the steel is good, and the fatigue performance of the 20CrMnTi gear steel has been improved.
引用
收藏
页数：9
相关论文
共 5 条
  • [1] Effects of rare earth Ce on TiN inclusion modifications in 20CrMnTi steel under deoxygenation conditions of Si-Ca-Ba alloy
    Liu, Shuang
    Yang, Fan
    Liu, Lixia
    Wang, Jian
    Peng, Jun
    Zhang, Fang
    An, Shengli
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 30 : 223 - 230
  • [2] Effects of Ce-Modified TiN Inclusions on the Fatigue Properties of Gear Steel 20CrMnTi
    Wang, Jian
    Peng, Jun
    Zhang, Fang
    Li, Yujie
    Zhang, Xin
    An, Shengli
    CRYSTALS, 2023, 13 (07)
  • [3] Study on the effect of Al-La composite deoxidation on the modification behaviors of TiN and sulfide inclusions in 20CrMnTi gear steel
    Zheng, Jie
    Liu, Lixia
    Liu, Shuang
    Tang, Hao
    Yang, Fan
    Peng, Jun
    Zhang, Fang
    An, Shengli
    IRONMAKING & STEELMAKING, 2024,
  • [4] Study on the effects of Al-Ce composite deoxidations on the modification behaviors of TiN inclusions in 20CrMnTi steel
    Liu, Shuang
    Yang, Fan
    Liu, Lixia
    Wang, Jian
    Peng, Jun
    Zhang, Fang
    An, Shengli
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 29 : 4863 - 4869
  • [5] Study on the Influences of Adding Rare Earth Ce on the Precipitation Behaviors of TiN Inclusions in 20CrMnTi
    Wang, Jian
    Peng, Jun
    Liu, Lixia
    Zhang, Fang
    Peng, Jihua
    Tang, Hao
    Zheng, Jie
    An, Shengli
    MATERIALS, 2023, 16 (16)
1