A calibration procedure for the assessment of work hardening part I: Effects of the microstructure and load type
Article dans une revue avec comité de lecture
This paper presents a methodology to define and quantify the level of work hardening locally in a material. The methodology is proposed after a thorough experimental study based on three complementary experimental techniques for microstructural characterizations: microhardness, X-ray diffraction (XRD) and Electron Backscatter Diffraction (EBSD) applied on Inconel 718 samples. In our analysis, several loading histories including single tension, single compression, high strain rates and low cycle fatigue have been investigated. The effects of the microstructure have been further investigated by modifying the size of the grains and the size of the strengthening precipitates. Experimental tests have also been simulated to choose a model variable able to represent work hardening. A reciprocal link between work hardening and experimental characterizations has then been established. Correlation curves have been proposed that enable to quantify the level of work hardening from the knowledge of the experimental data. Accuracy and complementarity of the three experimental approaches are discussed as well as the impact of the microstructure of the material on the measured quantities.
Showing items related by title, author, creator and subject.
A calibration procedure for the assessment of work hardening Part II: Application to shot peened IN718 parts Article dans une revue avec comité de lectureGOULMY, J.P.; KANOUTE, P.; ROUHAUD, E.; TOUALBI, L.; KRUCH, S.; BOYER, V.; BADREDDINE, J.; RETRAINT, D. (Elsevier BV, 2021)The objective of this paper is to discuss the application of the calibration methodology exposed in the previous part to shot-peened Inconel 718 specimens. Shot peening is commonly used to increase the fatigue life of ...
Article dans une revue avec comité de lectureGALLITELLI, Donato; BOYER, Vincent; GELINEAU, Maxime; COLAITIS, Yann; ROUHAUD, Emmanuelle; RETRAINT, Delphine; KUBLER, Régis; DESVIGNES, Marc; BARRALLIER, Laurent (Elsevier Masson, 2016)Manufacturing industries perform mechanical surface treatments like shot peening at the end of the manufacturing chain to protect important working parts. This treatment modifies the near surface of the treated part with ...
Towards an image quality criterion to optimize Digital image correlation. Use of an analytical model to optimize acquisition conditions Article dans une revue avec comité de lectureGOULMY, J.P.; JÉGOU, S.; BARRALLIER, L. (Elsevier BV, 2022)Digital image correlation (DIC) is expanding in many fields. In particular, it requires that the acquisition conditions and speckle be adapted to each application. A new methodology allowing to define the quality of the ...
Residual stress field prediction and fatigue post processing for shot peened mechanical parts with complex geometry Communication avec acteGELINEAU, Maxime; BARRALLIER, Laurent; ROUHAUD, Emmanuelle; KUBLER, Régis; PUYDT, Quentin; BADREDDINE, Jawad; MAUDUIT, Clément; WEBER, Bastien (ShotPeener ICSP13, 2017)Even when properly controlled, shot peening treatment may induce a complex residual stresses (RS) field depending on the geometry of the treated part. Hence, among the variables which affect the fatigue behaviour of shot ...
Macroscopic and microscopic determinations of residual stresses in thin Oxide Dispersion Strengthened steel tubes Communication avec acteBECHADE, J. L.; TOUALBI, L.; BOSONNET, Sophie; CASTELNAU, O; DE CARLAN, Yann (Scientific.net, 2014)To improve the efficiency of components operating at high temperatures, many efforts are deployed to develop new materials. Oxide Dispersion Strengthened (ODS) materials could be used for heat exchangers or cladding tubes ...