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| Ertürk, Emre |
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Zou, J.
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Topics
Publications (17/17 displayed)
- 2023A study on the effects of laser shock peening on the microstructure and substructure of Ti–6Al–4V manufactured by Selective Laser Meltingcitations
- 2016Pulsed Field Magnetization of Single-Grain Bulk YBCO Processed from Graded Precursor Powders
- 2016III-V compound semiconductor nanowires for optoelectronic device applicationscitations
- 2011III-V compound semiconductor nanowires for optoelectronic device applicationscitations
- 2009III-V compound semiconductor nanowirescitations
- 2009Epitaxy of III-V semiconductor nanowires towards optoelectronic devices
- 2004Dynamic annealing in III-nitrides under ion bombardmentcitations
- 2004Lattice damage produced in GaN by swift heavy ionscitations
- 2003Ion-beam-produced structural defects in ZnOcitations
- 2002Ion-beam-produced damage and its stability in AlN filmscitations
- 2001Effect of ion species on the accumulation of ion-beam damage in GaN
- 2001The effects of ion mass, energy, dose, flux and irradiation temperature on implantation disorder in GaNcitations
- 2001Disordering and anomalous surface erosion of GaN during ion bombardment at elevated temperaturescitations
- 2000Ion-beam-induced porosity of GaNcitations
- 2000Polycrystallization and surface erosion of amorphous GaN during elevated temperature ion bombardmentcitations
- 2000Transmission electron microscopy characterization of secondary defects created by MeV Si, Ge, and Sn implantation in siliconcitations
- 2000Damage buildup in GaN under ion bombardmentcitations
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article
A study on the effects of laser shock peening on the microstructure and substructure of Ti–6Al–4V manufactured by Selective Laser Melting
Abstract
<p>Ti‐6Al‐4V was fabricated by powder-bed fusion using different laser scanning strategies. The microstructure and deformation properties were investigated in the as-built condition, and also after the material had been subjected to a laser-shock-peening (LSP) treatment. The microstructure in each condition was surveyed using 3D optical microscopy, EBSD, and TEM. The post-manufacture residual stresses were determined. The results indicate a correlation between the residual stresses and the substructures observed in TEM: tensile residual stresses from the surface down to 1 mm depth were observed in the as-built material, corresponding to extensive deformation through twinning of the 101̅2 type and wavy slip structures; while after LSP the alloy showed a variety of dislocation arrangements, especially planar and in significantly higher density, along with 112̅2 twins and with the presence of compressive residual stresses. The findings indicate that the deformation capability is mechanistically aided by the peening process, which effectively promotes the replacement of tensile residual stresses by compressive ones, offering routes for potentially improving the mechanical properties of the additively manufactured Ti‐6Al‐4V, as well as its usability.</p>