ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 4

A Study of the Fatigue Softening and Hardening of Steel by the Magnetoelastic Effect Method

Xiangrong, M
University of Science and Technology Beijing, Beijing,

Xingqiao, M
University of Science and Technology Beijing, Beijing,

Youqing, Z
China Samwell Testing, Inc., Beijing,

(Received 24 June 1993; accepted 26 August 1994)

Abstract

With a specially designed sensor and testing system, a study was made on the changing pattern of the magnetic induction sensitivity signal induced by magnetic anisotropy during the fatigue processing of carbon steel. It was found that signal change has several characteristic stages and obvious extreme points. The points coincided with the position of the fatigue strain peaks. The signal change was related to fatigue softening and hardening, and synchronous with the change in the surface residual stress.

Keywords:
magnetoelastic effect, magnetic anisotropy, fatigue, softening, hardening

Paper ID: JTE10904J
DOI: 10.1520/JTE10904J
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