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Investigation of crack propagation in X38CrMoV5 (AISI H11) tool steel at elevated temperatures

Shah, Masood and Mabru, Catherine and Rezaï-Aria, Farhad Investigation of crack propagation in X38CrMoV5 (AISI H11) tool steel at elevated temperatures. (2010) Procedia Engineering, vol. 2 (n° 1). pp. 2045-2054. ISSN 1877-7058

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Official URL: http://dx.doi.org/10.1016/j.proeng.2010.03.220

Abstract

A method is developed to evaluate the surface fatigue damage of hot forming tools (forging, HPDC) that undergo thermo mechanical loading and environmental attack. Crack propagation under fatigue loading in a hot work tool steel X38CrMoV5-47HRC is investigated using SENT (single edge notched tension) specimens of 2.5*8 mm*mm section. The effect of different testing conditions has been investigated: effect of thickness (ranging from 2.5mm – 0.10mm), effect of R value and effect of temperature are observed on crack propagation properties of the steel. Paris curves are established. Numerical simulation is performed by ABAQUS® Standard to evaluate J integral and stress intensity factor KI. A new crack driving force parameter is introduced. Mechanisms of crack propagation have been studied under different test conditions.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Procedia Engineering website: http://www.sciencedirect.com/science/journal/18777058
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Ecole des Mines d'Albi-Carmaux - EMAC
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Laboratory name:
Institut Clément Ader - ICA (Toulouse, France) - Surfaces, Usinage, Matériaux et Outillages - Fatigue, Modélisation, Endommagement et Usure
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Deposited By:Catherine Mabru

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