Paper Title:
Effect of Surface Nanocrystallization Method on Fatigue Strength of TA2
  Abstract

The enhancement of the fatigue strength is significant for the engineering applications of commercial pure titanium and its alloys. The paper investigated improvement of fatigue strength for commercial pure titanium by combined high-energy shot peening. Firstly, nano-crystallization in surface layer of pure titanium was carried out by high-energy shot peening, and then the shot peening with small diameter shots was introduced to degrade the surface roughness, enhancing the quality of the nano-grained surface. The fatigue limit of pure titanium by high-energy shot peening turns out to be increased by 34%, and the fatigue limit of pure titanium by compound high-energy shot peening turns out to be increased by 52.3%, according to the results. Effective factors such as surface states etc. to fatigue life, the fatigue crack initiation and propagation behaviors were also discussed in this paper.

  Info
Periodical
Materials Science Forum (Volumes 620-622)
Edited by
Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee
Pages
545-549
DOI
10.4028/www.scientific.net/MSF.620-622.545
Citation
A. L. Wen, R. M. Ren, S. W. Wang, J. Y. Yang, "Effect of Surface Nanocrystallization Method on Fatigue Strength of TA2", Materials Science Forum, Vols. 620-622, pp. 545-549, 2009
Online since
April 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: Wun Chet Davy Cheong, W.Z. Zhuang, Liang Chi Zhang
871
Authors: Imke Weich, Thomas Ummenhofer
Abstract:Research has been initiated on the effects of high frequency peening methods on the fatigue strength. These methods combine an improvement...
429
Authors: Kazuaki Shiozawa, Lian Tao Lu
Abstract:Gigacycle fatigue behavior in high-strength steels tested under rotary bending fatigue was summarized in this paper. Characteristic of the...
65
Authors: Shabnam Hosseini, Mohammad Bagher Limooei
Chapter 1: Metal Materials
Abstract:In this research, fatigue behaviour of Ti-6Al-4V alloy was investigated for smooth and notched specimens with stress concentration...
7
Authors: Yan Zeng Wu, Qing Yuan Wang, Qiao Lin Ouyang
Chapter 7: Building Materials
Abstract:Using the ultrasonic fatigue test method, the influence of subjection to plasma nitriding surface modifications on the ultra-high cycle...
1731