The Preparation of H13 Steel for TBM Cutter and the Performance Test Close to Working Condition

被引：17
作者：
Hu, Yong [1 ]
Tian, Jiyu [1 ]
Xu, Mingxu [1 ]
Zhao, Hongwei [1 ]
Wang, Mingze [2 ]
Wang, Maosen [3 ]
Zhang, Aiwu [4 ]
机构：
[1] Jilin Univ, Sch Mech & Aerosp Engn, Changchun 130025, Jilin, Peoples R China
[2] Jilin Univ, Sch Mat Sci & Engn, Changchun 130025, Jilin, Peoples R China
[3] Jilin Univ, Sch Construct Engn, Changchun 130026, Jilin, Peoples R China
[4] Welter Tunnel Equipment Co Ltd, Jilin 132000, Jilin, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2018年 / 8卷 / 10期
基金：
中国国家自然科学基金;
关键词：
H13; steel; TBM disc cutter; high temperature compression; hardness; DIE STEEL; WEAR-RESISTANCE; TEMPERATURE; TUNNEL;
D O I：
10.3390/app8101877
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The material of disc cutters is important to full-face tunnel boring machines (TBM). In recent years, disc cutters were optimized and tested by many scholars all around the world. H13(4Cr5MoSiV1) steel is widely used due to its excellent properties, especially in TBM disc cutters. In this paper, H13 steel with optimized composition was prepared and heat treatment. The high temperature compression of H13 steel was conducted at the temperatures ranging from 100 degrees C to 700 degrees C, with strain rate at 0.01 s(-1). The stress-strain curves, Rockwell hardness and microstructure of H13 steel after compression were obtained and analyzed. The results showed that the compression strength and hardness decreased as the temperature increased; and the compression strength, hardness and ductility decreased rapidly between 600 degrees C and 700 degrees C, HR700 (the hardness of H13 steel at 700 degrees C) only reached 33.23 HRC. It is not recommended for TBM disc cutters to work in an environment over 600 degrees C.
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页数：8
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