Paper Title:
Study on the White Layer of Hard Turned GCr15 Bearing Steel
  Abstract

The formation mechanisms and properties of white layers produced in precision hard part machining of GCr15 hardened steels are not clearly understood to date. Microstructure of white layers formed during machining of GCr15 hardened steel (62±2 HRC) was investigated. Hard turned surface with white layer usually consists of three layers: a white layer (untempered martensite), a transition layer (over-tempered martensite), and the bulk material. Martensite, austenite and carbide are observed in the white layer, hardness of white layer is larger than that of bulk material and transition layer, it was caused by extremely small grain size and high dislocation density. The depth of white layer is about 7-14µm with the flank wear reached 0.1mm, the optimal width of the flank wear which generated low depth of white layer is essential to perform the super-finishing process.

  Info
Periodical
Advanced Materials Research (Volumes 69-70)
Edited by
Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen
Pages
20-23
DOI
10.4028/www.scientific.net/AMR.69-70.20
Citation
D. H. Wen, X. L. Liu, T. Hong, "Study on the White Layer of Hard Turned GCr15 Bearing Steel", Advanced Materials Research, Vols. 69-70, pp. 20-23, 2009
Online since
May 2009
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: Yu Li Lin, Chih Chung Lin, Tsung Hsien Tsai, Hong Jen Lai
Abstract:In this study, the microstructure and mechanical properties of 0.63C-12.7Cr martensitic stainless steel during various tempering treatments...
274
Authors: Li Yang, Gang Li
Abstract:To improve the wear resistance of ductile cast iron, plasma beam remelt-solidified hardening on the surface is adopted. Scanning electron...
1751
Authors: Li Yang, Ying Huai Qiang, Fu Shan Chen, Yang Gao, Yun Tian Zhong
Surface Engineering/Coatings
Abstract:To improve wear resistance and service life of boron cast iron cylinder, plasma beam hardening on surface is adopted.Scanning electron...
98
Authors: L.H. Paijan, M.N. Berhan, M.S. Adenan, N.F.M. Yusof, E. Haruman
Chapter 4: Materials
Abstract:This paper describes the results of gaseous thermochemical treatment of nitriding duplex stainless steel using tube furnace. The nitriding...
260
Authors: Noureddine Barka, Abderrazak El Ouafi, Philippe Bocher, Jean Brousseau, Ahmed Chebak
Chapter 1: Materials Engineering. Technologies and Processing
Abstract:Thanks to many industrial benefits that it exhibits, induction heating process is very promising for its potential application in...
417