Results 31 to 40 of about 717 (181)
Strengthening effect of laser shock peening on 7075-T6 aviation aluminum alloy
The strengthening effect and uniformity of residual stress and strain of 7075-T6 aviation aluminum after laser shock peening were investigated. The finite element simulation model of laser shot peening on 7075-T6 aviation aluminum alloy was established ...
Junhao Zhang +3 more
doaj +1 more source
Surface reconditioning through mechanical and electrochemical polishing is shown to extend the fatigue life of predamaged 42CrMo4 steel by over 12 times. By removing ≈100 μm of surface material, surface‐driven fatigue damage is mitigated. This study introduces a reuse potential metric to evaluate fatigue recovery and support sustainable steel reuse. To
Ayush Shrivastava +7 more
wiley +1 more source
Toughening of TiO2 via Femtosecond Laser Shock Peening
ABSTRACT Most ceramics have low fracture toughness (<5 MPa m$\sqrt{m}$) at room temperature. This work explores the feasibility of toughening TiO2 via femtosecond laser shock peening (fs‐LSP). Transmission electron microscopy (TEM) analyses reveal LSP‐induced the creation of high‐density stacking faults, dislocation structures, and twin boundaries in ...
Anish Bajla +13 more
wiley +1 more source
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Rejuvenated Amorphous Alloys: Processing Methods, Microstructures and Mechanical Properties
Three rejuvenation methods – mechanical and thermal rejuvenation, and other rejuvenation routes such as ultrasonic processing – can be used to modify structures of glassy alloys, especially atomic clusters, and therefore enhances plasticity and activates work‐hardening behaviors.
Can Yang +10 more
wiley +1 more source
ABSTRACT The milling process significantly influences the surface integrity of metallic components through machining induced near‐surface residual stresses. Modern hybrid machining processes, such as ultrasonic‐assisted milling (USAM), offer the potential to induce beneficial near‐surface compressive residual stresses compared to the near‐surface ...
Lorenz Engelking +5 more
wiley +1 more source
Vibration fatigue specimens are designed based on the load-cases of compressor blades, and performed by mechanical shot peening, laser shock peening, and co-strengthening of laser shock peening followed by mechanical shot peening respectively.
TIAN Kai +5 more
doaj +1 more source
Anti‐Slip Material‐Based Strategies and Approaches
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani +3 more
wiley +1 more source
This paper deals with numerical modelling of the residual stress field formed after laser shock peening of a thin blade edge from TC4. It is shown that the application of double-sided symmetric laser shock peening is an effective way of treatment, as it ...
Mariia L. Bartolomei +3 more
doaj +1 more source
Accurate numerical modeling of residual stress fields induced by laser shock peening
To improve the accuracy of numerical simulation of laser shock peening, a novel model is developed to predict residual stress distribution. An optical beam measurement system, a white light confocal displacement sensor, and other sensors are used to ...
Boyu Sun, Hongchao Qiao, Jibin Zhao
doaj +1 more source

