Analysis of Residual Stress Relaxation Under Mechanical Cyclic Loading of Shot-Peened TRIP780 Steel

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Analysis of Residual Stress Relaxation Under Mechanical Cyclic Loading of Shot-Peened TRIP780 Steel

C. Mauduit, R. Kubler, L. Barrallier, S. Berveiller, Q. Puydt, M. Monin, B. Weber

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Abstract. Shot-peening is a common mechanical surface treatment used in automotive and aeronautical industries to enhance life duration of mechanical parts by introducing compressive residual stresses. TRIP 780 steel fatigue type specimens are shot-peened and loaded under cyclic bending. The martensite phase transformation and the evolution of residual stresses in the different phases are determined by XRD at different numbers of cycles. A FEM model is also proposed to better understand the evolution of residual stresses in the first cycles.

Keywords
TRIP Steel, Shot-Peening, Residual Stresses, Relaxation

Published online 12/22/2016, 6 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: C. Mauduit, R. Kubler, L. Barrallier, S. Berveiller, Q. Puydt, M. Monin, B. Weber, ‘Analysis of Residual Stress Relaxation Under Mechanical Cyclic Loading of Shot-Peened TRIP780 Steel’, Materials Research Proceedings, Vol. 2, pp 85-90, 2017

DOI: http://dx.doi.org/10.21741/9781945291173-15

The article was published as article 15 of the book Residual Stresses 2016

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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