An investigation of the crack propagation in tool steel X38CrMoV5 (AISI H11) in SET specimens

M. Shah 1 Christine Boher 1 Sabine Le Roux 1 Farhad Rezai-Aria 1 Catherine Mabru 2
1 ICA - Institut Clément Ader
2 Département Génie Mécanique Ecole Nationale Supérieure d'Ingénieurs de Constructions Aéronautiques 1 Place Emile Blouin 31056 Toulouse Cedex 5
Abstract : An approach is proposed for the evaluation of surface fatigue damage of hot forming tools that undergo severe thermo mechanical loading. Fatigue crack propagation in a hot work tool steel X38CrMoV5‐47HRC is investigated using single‐edge cracked tension specimens with 3 different thicknesses (2.5, 1, 0.6 mm) and two R‐values. The stress intensity factor is evaluated with ABAQUS (R). Paris curves are established for the crack propagation experiments.
Keywords : Crack propagation Hot work tools Surface damage Fatigue
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M. Shah, Christine Boher, Sabine Le Roux, Farhad Rezai-Aria, Catherine Mabru. An investigation of the crack propagation in tool steel X38CrMoV5 (AISI H11) in SET specimens. REVUE DE METALLURGIE‐CAHIERS D INFORMATIONS TECHNIQUES, 2009, 106 (3), pp.140-145. ⟨10.1051/metal/2009025⟩. ⟨hal-01666705⟩

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