A Novel Heat Treatment for Excavator Dipper Teeth Manufactured from Low-Carbon Low-Alloy Steel

被引：10

作者：

Zhao, Ming-Chun ^{[1
]}

Li, Jing-Li ^{[1
]}

Zhao, Ying-Chao ^{[1
]}

Huang, Xiao-Fang ^{[1
]}

Li, Jin-Zhu ^{[1
]}

Atrens, Andrej ^{[2
]}

机构：

[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China

[2] Univ Queensland, Div Mat, Brisbane, Qld 4072, Australia

来源：

STEEL RESEARCH INTERNATIONAL | 2013年 / 84卷 / 01期

关键词：

1; forging; annealing; remnant-heat; 3; steel; 4. mechanical properties; COOLING RATE; MANGANESE; DEFORMATION; MARTENSITE;

D O I：

10.1002/srin.201200103

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This research examined the metallurgy of production of forged excavator teeth manufactured from low-carbon low alloy steel. A novel partial forging-remnant-heat hardening technology was proposed. The critical temperature of isothermal annealing for 40 Cr steel was determined experimentally to be 650 degrees C. Production dipper teeth were produced using this novel technology. Their properties were compared with dipper teeth produced by the alternative routes. The novel technology provided optimum microstructure, good mechanical properties, and a lower economical cost, congruent with the low carbon economy.

引用

页码：89 / 93

页数：5

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