Secondary Hardening, Austenite Grain Coarsening and Surface Decarburization Phenomenon in Nb-Bearing Spring Steel

被引：21

作者：

Zhang Chao-lei ^{[1
]}

Liu Ya-zheng ^{[1
]}

Zhou Le-yu ^{[1
]}

Jiang Chao ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2012年 / 19卷 / 03期

关键词：

spring steel; microalloying; secondary hardening; grain coarsening; surface decarburization; MICROALLOYED STEEL; NIOBIUM; GROWTH;

D O I：

10.1016/S1006-706X(12)60072-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The secondary hardening, the austenite grain coarsening and the surface decarburization phenomenon of Nb-bearing spring steel were investigated, and the effects of niobium on tempered microstructure was studied using scanning electron microscope. The results show that the micro-addition of niobium increases the tempering resistance and produces secondary hardening. The effect of niobium on the size and distribution of cementite particles is one of the primary reasons to increase the hardness after tempering. The grain-coarsening temperature of the spring steel is raised 150 degrees C due to Nb-addition. Furthermore, both the secondary hardening and the austenite grain coarsening phenomenon congruously demonstrate niobium begins observably dissolving above 1 100 degrees C in the spring steel. Besides, niobium microalloying is an effective and economy means to decrease the decarburization sensitivity of the spring steels.

引用

页码：47 / +

页数：6

共 40 条

[1] Secondary Hardening, Austenite Grain Coarsening and Surface Decarburization Phenomenon in Nb-Bearing Spring Steel
Chao-lei Zhang
Ya-zheng Liu
Le-yu Zhou
Chao Jiang
Journal of Iron and Steel Research International, 2012, 19 : 47 - 51
[2] Secondary Hardening, Austenite Grain Coarsening and Surface Decarburization Phenomenon in Nb-Bearing Spring Steel
ZHANG Chao-lei
JournalofIronandSteelResearch(International), 2012, 19 (03) : 47 - 51
[3] Effect of Austenite Grain Size on the Hot Ductility of Nb-Bearing Peritectic Steel
Zhaozhen Cai
Jiazhi An
Biao Cheng
Miaoyong Zhu
Metallurgical and Materials Transactions A, 2023, 54 : 141 - 152
[4] Effect of Austenite Grain Size on the Hot Ductility of Nb-Bearing Peritectic Steel
Cai, Zhaozhen
An, Jiazhi
Cheng, Biao
Zhu, Miaoyong
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2023, 54 (01): : 141 - 152
[5] Role of Ti on the Growth of Coarse Columnar Austenite Grain During Nb-Bearing Peritectic Steel Solidification
Jiazhi An
Zhaozhen Cai
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Metallurgical and Materials Transactions A, 2022, 53 : 1540 - 1551
[6] Role of Ti on the Growth of Coarse Columnar Austenite Grain During Nb-Bearing Peritectic Steel Solidification
An, Jiazhi
Cai, Zhaozhen
Zhu, Miaoyong
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2022, 53 (04): : 1540 - 1551
[7] Suppress Austenite Grain Coarsening by Nb Alloying in High-Temperature-Pseudo-Carburized Bearing Steel
An, Xueliang
Cao, Wenquan
Zhang, Xiaodan
Yu, Jinku
MATERIALS, 2024, 17 (12)
[8] Determination of Austenite Grain Coarsening Temperature of a Nb-Microalloyed Steel Sheet
Khaki, Daavood Mirahmadi
Otaaghvar, Vahid Alizaadeh
Khaki, Masoud Mirahmadi
ADVANCED MATERIALS RESEARCH, 2011, 213 : 600 - +
[9] Effects of TMCP Parameters on the Microstructure and Mechanical Properties of Nb-Bearing Spring Steel
ZHANG Chao-lei
Journal of Iron and Steel Research(International), 2011, 18 (S1) : 581 - 584
[10] Effects of TMCP Parameters on the Microstructure and Mechanical Properties of Nb-Bearing Spring Steel
Zhang Chao-lei
Liu Ya-zheng
Zhou Le-yu
Jiang Chao
Sun Xiao-jun
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2011, 18 : 581 - 584

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