Paper Title:
Effect of Trace Impurities on High-Cycle Fatigue Damage of Ultrafine Grained Copper Processed by Equal Channel Angular Pressing
  Abstract

In order to study the effect of trace impurities on high-cycle fatigue damage of ultrafine grained (UFG) copper, fatigue tests were carried out for two samples: oxygen-free copper (OFC, 99.99 wt% Cu) and deoxidized low-phosphorous copper (DLP, 99.95 wt% Cu). After the processing by equal channel angular pressing (ECAP) using eight passes, equiaxed grains with an average size of 250 nm were formed for both the samples. Fatigue strength of UFG copper was enhanced by the impurities. The formation behavior of surface damage and the change in surface hardness was monitored. A close relationship was observed between the change in hardness and the formation behavior of surface damage. The physical background of the effect of trace impurities on the fatigue damage was discussed from the viewpoints of surface damage formation behavior.

  Info
Periodical
Materials Science Forum (Volumes 584-586)
Edited by
Yuri Estrin and Hans Jürgen Maier
Pages
809-814
DOI
10.4028/www.scientific.net/MSF.584-586.809
Citation
M. Goto, N. Teshima, S. Z. Han, T. Yakushiji, S. S. Kim, "Effect of Trace Impurities on High-Cycle Fatigue Damage of Ultrafine Grained Copper Processed by Equal Channel Angular Pressing", Materials Science Forum, Vols. 584-586, pp. 809-814, 2008
Online since
June 2008
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: Seong Hee Lee, Seung Zeon Han, Cha Yong Lim
Abstract:The difference in annealing characteristics of oxygen free copper (OFC) and deoxidized low-phosphorous copper (DLP) processed by ARB was...
1373
Authors: Jun Yi Lin, Kai Yong Jiang, Ming Chang, Yen Yu Wang
Chapter 2: Machine Parts and Mechanisms. Design and Manufacturing
Abstract:In this paper, a method combining stereo vision and digital phase-shifting techniques is presented, which can measure the profile of complex...
623
Authors: Kamarudin Khairu, Mustaffa Ibrahim, S. Hassan, H. Hehsan, Ashari Kasmin, E. Fazial
Chapter 9: New Materials and Advanced Materials
Abstract:This paper presents a research on 3D part fabrication from composition of photo initiator (Phenylbis (2,4,6-trimethylbenzoyl)), photo...
911
Authors: M. Goto, N. Teshima, Seung Zeon Han, J.H. Ahn, T. Yakushiji
Abstract:Two Cu samples: oxygen-free copper (99.99 wt% Cu) and deoxidized low-phosphorous copper (99.9 wt% Cu) were processed by equal channel angular...
201