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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gibmeier, Jens
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Analysis of Phase-Specific Strain Pole Figures for Duplex Steels under Elasto-Plastic Uniaxial Tension—Experiment vs. EPSC Modellingcitations
- 2024On the interpretation of Varestraint and Transvarestraint hot cracking test results
- 2024Dynamic evolution of internal stress, grain growth, and crystallographic texture in arc-evaporated AlTiN thin films using in-situ synchrotron x-ray diffractioncitations
- 2024Residual stress engineering for wire drawing of austenitic stainless steel X5CrNi18-10 by variation of die geometries - Effect of drawing speed and process temperaturecitations
- 2023On the Oscillating Course of d$^{hkl}$−sin$^2psi$ Plots for Plastically Deformed, Cold-Rolled Ferritic and Duplex Stainless Steel Sheetscitations
- 2023Kinetics of Martensite Decomposition and Microstructure Stability of Ti-6246 during Rapid Heating to Service Temperaturescitations
- 2023In-situ real-time evolution of intrinsic stresses and microstructure during growth of cathodic arc deposited (Al,Ti)N coatings
- 2023On the Oscillating Course of d$^{hkl}$−sin$^{2}$ψ Plots for Plastically Deformed, Cold-Rolled Ferritic and Duplex Stainless Steel Sheets
- 2022Review on study of internal load transfer in metal matrix composites using diffraction techniquescitations
- 2022Influence of FeCl$_{3}$ and H$_{2}$O$_{2}$ in corrosion testing of modular taper connections in total hip arthroplasty: An in vitro studycitations
- 2021In-Situ Synchrotron X-ray Diffraction Investigation of Microstructural Evolutions During Low-Pressure Carburizingcitations
- 2021Influence of Shot Peening on the Isothermal Fatigue Behavior of the Gamma Titanium Aluminide Ti-48Al-2Cr-2Nb at 750 °Ccitations
- 2021Residual stresses in deep-drawn cups made of duplex stainless steel X2CrNiN23-4citations
- 2021Residual stresses in deep-drawn cups made of duplex stainless steel X2CrNiN23-4 – Influence of the drawing depth
- 2021Investigation of the Effects of Low‐Pressure Carburizing Process Parameters on Microstructural Evolution by Means of In Situ Synchrotron X‐Ray Diffractioncitations
- 2021Investigations on Residual Stresses within Hot-Bulk-Formed Components Using Process Simulation and the Contour Method
- 2020Phase-Specific Strain Hardening and Load Partitioning of Cold Rolled Duplex Stainless Steel X2CrNiN23-4
- 2020Determination of Temperature-Dependent Elastic Constants of Steel AISI 4140 by Use of In Situ X-ray Dilatometry Experimentscitations
- 201920 Hz synchrotron X-ray diffraction analysis in laser-pulsed WC-Co hard metal reveals oscillatory stresses and reversible composite plastificationcitations
- 2019Phase-specific residual stresses induced by deep drawing of lean duplex steel: measurement vs. simulationcitations
- 2018Experimental and numerical analyses of residual stresses induced by tube drawingcitations
- 2018In-Situ Synchrotron X-Ray Diffraction Studies in the Chip Formation Zone During Orthogonal Metal Cuttingcitations
- 2018Application of magnetic Barkhausen noise for residual stress analysis – Consideration of the microstructure = Anwendung des magnetischen Barkhausenrauschens für die Eigenspannungsanalyse – Berücksichtigung der Mikrostrukturcitations
- 2017Spatially resolved temporal stress evolution during laser surface spot hardening of steelcitations
- 2015Fatigue Performance of Medical Ti6Al4V Alloy after Mechanical Surface Treatments
- 2013Effect of built-up edges and transfer layers on the wear state during dry cutting of steel with cemented carbide tools
Places of action
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article
Influence of Shot Peening on the Isothermal Fatigue Behavior of the Gamma Titanium Aluminide Ti-48Al-2Cr-2Nb at 750 °C
Abstract
One possibility to improve the fatigue life and strength of metallic materials is shot peening. However, at elevated temperatures, the induced residual stresses may relax. To investigate the influence of shot peening on high-temperature fatigue behavior, isothermal fatigue tests were conducted on shot-peened and untreated samples of gamma TiAl 48-2-2 at 750 °C in air. The shot-peened material was characterized using EBSD, microhardness, and residual stress analyses. Shot peening leads to a significant increase in surface hardness and high compressive residual stresses near the surface. Both effects may have a positive influence on lifetime. However, it also leads to surface notches and tensile residual stresses in the bulk material with a negative impact on cyclic lifetime. During fully reversed uniaxial tension-compression fatigue tests (R = −1) at a stress amplitude of 260 MPa, the positive effects dominate, and the fatigue lifetime increases. At a lower stress amplitude of 230 MPa, the negative effect of internal tensile residual stresses dominates, and the lifetime decreases. Shot peening leads to a transition from surface to volume crack initiation if the surface is not damaged by the shots.