Paper Title:
Correlation between Crack Growth Rate and Magnetic Memory Signal of X45 Steel
  Abstract

Crack growth rate, as an important parameter, is widely applied in crack growth evaluation and fatigue life prediction. The objective of this paper is to study crack growth rate with the metal magnetic memory (MMM) technology which is a non-destructive testing method newly developed. The correlation between crack growth rate da / dN and magnetic memory signal Hp(y) is investigated through three-point bending fatigue testing. Samples of steel X45, with different heat treatments, quenching and thermal refining, are tested in HYG fatigue machinery. The correlation curves of da / dN ~ Hp(y) are built and the characteristics of magnetic memory signal are given. The influence of heat treatment on Hp(y) is also analyzed. The crack growth rate model of X45 based on MMM signal is presented and verified.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
2293-2296
DOI
10.4028/www.scientific.net/KEM.353-358.2293
Citation
H. Y. Xing, R. X. Wang, M. Q. Xu, J. Z. Zhang, "Correlation between Crack Growth Rate and Magnetic Memory Signal of X45 Steel", Key Engineering Materials, Vols. 353-358, pp. 2293-2296, 2007
Online since
September 2007
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Price
$32.00
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