Paper Title:
Study on Carburizing and Quenching Cracks of Large Low-Alloy Gears
  Abstract

Technology and metallographic of three kinds of representative gears were analyzed in this paper according to characteristics of carburizing and quenching, and technology problems met with during the carburization process of large low-alloy gears in Citic Heavy Industries Co., Ltd were also taken into account. Three conclusions are demonstrated through experimental results. Firstly, although carburization technology is normal, grinding cracks can be caused by hard particles included in matrix. Secondly, if carbon concentration of carburization layer is too high or too steep in carburizing technology, carbide will aggregate in reticular or structural stress will not be average during the subsequent quenching technology. And therefore grinding cracks are caused. Moreover, retained austenite of surface layer and subsurface layer will be over standard and thus grinding cracks will be caused if quenching temperature is too high during quenching technology after carburizing.

  Info
Periodical
Edited by
Deliang Chen
Pages
110-113
DOI
10.4028/www.scientific.net/AMR.266.110
Citation
Z. R. Pang, H. L. Yuan, J. W. Xu, C. M. Wang, "Study on Carburizing and Quenching Cracks of Large Low-Alloy Gears", Advanced Materials Research, Vol. 266, pp. 110-113, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jung Hyun Kong, Jang Hyun Sung, Sang Gweon Kim, Sung Wan Kim
Abstract:Microstructural changes and hardness variations in SKD11 steel have been investigated during the processes of carbide dispersion (CD)...
115
Authors: Ze Jie Zhou, Xiao Ming Wang
Abstract:The fractographic appearance, microstructure, chemical elements and hardness of the pitman shaft of automotive steering gear were analyzed....
1604
Authors: P. Zhang, Fu Cheng Zhang, Z.G. Yan, Tian Sheng Wang, Li He Qian
Abstract:Rolling contact fatigue (RCF) properties of low-temperature bainitic microstructure in the surface layer of a low-carbon steel, obtained by...
585
Authors: Dian Liang Wang, Ji Wu Li, Mei Peng Zhong
Materials and Its Applications
Abstract:The microstructures and properties of 20CrMo steel in rare earth catalysis and conventional carburization have been investigated by using the...
479
Authors: Guo Biao Lin, Zhong Jian Zhang, Mao Qing Wang, Su Min Zhu
Chapter 12: Surface Engineering/Coatings
Abstract:This paper presents the research on the influence of carburizing and heat treatment on the properties and microstructure of a new medium...
1838