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Title: Effects of fatigue-induced changes in microstructure and stress on domain structure and magnetic properties of Fe-C alloys

Abstract

A study of the effects of microstructural changes on domain structure and magnetic properties as a result of fatigue has been made on Fe-C alloys subjected to either cold work, stress-relief annealing, or heat treatment that produced a ferritic/pearlitic structure. The magnetic properties varied with stress cycling depending on the initial condition of the samples. Variations in coercivity in the initial stage of fatigue were closely related to the changes in dislocation structure. In the intermediate stage of fatigue the observed refinement of domain structures was related to the development of dislocation cell structures and formation of slip bands. In the final stage of fatigue the remanence and maximum permeability decreased dramatically, and this rate of decrease was dependent on the crack propagation rate. (c) 2000 American Institute of Physics.

Authors:
 [1];  [1];  [1];  [1]
  1. Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)
Publication Date:
OSTI Identifier:
20216271
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 87; Journal Issue: 9; Other Information: PBD: 1 May 2000; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON ALLOYS; CARBON ADDITIONS; MICROSTRUCTURE; FATIGUE; STRESSES; DOMAIN STRUCTURE; MAGNETIZATION; DISLOCATIONS; HYSTERESIS; EXPERIMENTAL DATA

Citation Formats

Lo, C. C. H., Tang, F., Biner, S. B., and Jiles, D. C. Effects of fatigue-induced changes in microstructure and stress on domain structure and magnetic properties of Fe-C alloys. United States: N. p., 2000. Web. doi:10.1063/1.372757.
Lo, C. C. H., Tang, F., Biner, S. B., & Jiles, D. C. Effects of fatigue-induced changes in microstructure and stress on domain structure and magnetic properties of Fe-C alloys. United States. doi:10.1063/1.372757.
Lo, C. C. H., Tang, F., Biner, S. B., and Jiles, D. C. Mon . "Effects of fatigue-induced changes in microstructure and stress on domain structure and magnetic properties of Fe-C alloys". United States. doi:10.1063/1.372757.
@article{osti_20216271,
title = {Effects of fatigue-induced changes in microstructure and stress on domain structure and magnetic properties of Fe-C alloys},
author = {Lo, C. C. H. and Tang, F. and Biner, S. B. and Jiles, D. C.},
abstractNote = {A study of the effects of microstructural changes on domain structure and magnetic properties as a result of fatigue has been made on Fe-C alloys subjected to either cold work, stress-relief annealing, or heat treatment that produced a ferritic/pearlitic structure. The magnetic properties varied with stress cycling depending on the initial condition of the samples. Variations in coercivity in the initial stage of fatigue were closely related to the changes in dislocation structure. In the intermediate stage of fatigue the observed refinement of domain structures was related to the development of dislocation cell structures and formation of slip bands. In the final stage of fatigue the remanence and maximum permeability decreased dramatically, and this rate of decrease was dependent on the crack propagation rate. (c) 2000 American Institute of Physics.},
doi = {10.1063/1.372757},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 9,
volume = 87,
place = {United States},
year = {2000},
month = {5}
}