Characterization of Multiperforated Plates Manufactured by SLM and EBM for Aeroengine Applications

Thomas, Mitra; Lambert, O.; Davoine, Cécile; Popoff, F.; DuPuy, Chena; Peyre, P.; Dendievel, Rémy

doi:10.1007/978-3-319-51493-2_7

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…1 Previous studies have been mainly carried out on the processing parameters, [2][3][4][5] microstructure characteristics of formed parts, [4][5][6][7] welding cracking 6 and effect of post-process, 7-9 such as heat treatment (HT) and hot isostatic pressing (HIP). In order to apply the SLM superalloy into the manufacturing of turbine blades and combustors with high reliability, 10,11 the fatigue behaviour of this kind of materials should be investigated.…”

Section: Introductionmentioning

confidence: 99%

On the fatigue crack growth behaviour of selective laser melting fabricated Inconel 625: Effects of build orientation and stress ratio

Zhang

Ren

et al. 2020

Fatigue Fract Eng Mat Struct

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The building of Inconel 625 material was carried out using the selective laser melting method, and its fatigue crack growth property at ambient temperature was experimentally investigated. Compact‐tension specimens with different building orientations were utilized to determine the stress intensity factor threshold and fatigue crack growth rate curves at different stress ratios (R). The results indicated that the fatigue crack growth properties in the near threshold stress intensity factor and Paris regions were greatly affected by the loading factor, as well as the orientation of the alloy. The mechanism of fatigue crack growth at different stages was observed and discussed using scanning electron microscopy. Finally, based on the framework of the linear elastic fracture, a new and applicable effective driving force factor range was introduced to replace the traditional stress intensity factor range (ΔK) with good accuracy for all of the fatigue crack growth test data, considering both the stress ratio and orientation.

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