Results 21 to 30 of about 345,517 (298)

Surface micro-morphology and residual stress formation mechanisms of near-net-shaped blade produced by low-plasticity ultrasonic rolling strengthening process

open access: yesMaterials & Design, 2022
Low surface integrity of near-net–shaped (NNS) blades is the primary problem associated with aero engine performance improvements. This paper proposes a low-plasticity ultrasonic rolling strengthening process (URSP) to improve the surface micro ...
Dongbo Wu, Hongru Lv, Hui Wang, Jie Yu
doaj   +1 more source

RELAXATION RULE FOR SHOT PEENING RESIDUAL STRESS OF 2024 ALUMINUM ALLOY

open access: yesJixie qiangdu, 2022
The residual compressive stress of shot peening can effectively improve the fatigue resistance of the material, but the residual compressive stress is unstable during service and will relax.
FANG Jie, CHEN Ping, GAO Pan, CHEN Cheng
doaj  

Orthogonal Test Analysis and Modeling of GCr15 Bearing Steel Machined Surface Residual Stress in Hard Precision Turning

open access: yesChemical Engineering Transactions, 2015
Orthogonal experimental analysis of GCr15 bearing steel residual stress in machined surface is carried out; Based on 1stOpt software, Using the Marquardt method and universal global optimization algorithm established Multivariate nonlinear prediction ...
G.J. Chen   +4 more
doaj   +1 more source

Triaxial analysis of residual stress in surface layers after high feed machining using X-ray diffractometer

open access: yesMATEC Web of Conferences, 2018
Continuously increasing of productivity is main cause of finding of new ways and methods of machining. High feed machining (HFM) is one of methods of high-productivity machining developed to achieve higher metal removal rates and decrease machining time.
Sajgalik Michal   +5 more
doaj   +1 more source

Investigation on Residual Stress Loss during Laser Peen Texturing of 316L Stainless Steel

open access: yesApplied Sciences, 2019
Laser peen texturing (LPT) is a novelty way of surface texturing based on laser shock processing. One of the most important benefits of LPT is that it can not only fabricate surface textures but also induce residual compressive stress for the target ...
Kangmei Li, Yifei Wang, Yu Cai, Jun Hu
doaj   +1 more source

The effect of residual stress on the nonsingular T-stresses

open access: yesFrattura ed Integrità Strutturale, 2017
The effect of residual stresses on surface fatigue crack propagation and fracture mechanics parameters of intersecting orthogonal cracks is discussed. Mutual influence of intersecting cracks and biaxiality affects the nonsingular parameters Txx and Tzz. At the same time, the effect on the stress intensity factor is negligible.
I. A. Razumovsky   +2 more
openaire   +5 more sources

Fatigue Life Simulation and Analysis of Aluminum Alloy Sheet Self-piercing Riveting

open access: yesFracture and Structural Integrity, 2020
The fatigue life prediction model of self-piecing riveting components of aluminum alloy is established and the effects of roughness and residual stress on fatigue life are analyzed by the model.
Qingchun Zheng   +4 more
doaj   +1 more source

Evolution of Residual Stress Based on Curvature Coupling in Multi-Roll Levelling

open access: yesApplied Sciences, 2019
Residual stress is the main cause of flatness defects in sheet metal and the basic method to improve the shape quality of the sheet is to reduce and eliminate the residual stress by multi-roll levelling.
Guodong Yi   +3 more
doaj   +1 more source

Effect of ultrasonic vibration on residual stress in plasma cladding of iron-based alloy

open access: yesFrontiers in Materials, 2023
To explore the effect of ultrasonic vibration power and frequency on the residual stress of single-channel iron-based alloy plasma cladding, the single-factor ultrasonic vibration plasma cladding test was designed, and ten groups of single-channel iron ...
Youbin Lai, Wenwen Yue, Yichuan Zhang
doaj   +1 more source

Effect of homogenization annealing on internal residual stress distribution and texture in ME21 magnesium alloy extruded plates

open access: yesJournal of Magnesium and Alloys, 2019
The distribution of residual stresses through thickness of 5 mm-thick ME21 magnesium alloy extruded plates was analyzed non-destructively using short-wavelength X-ray diffraction (SWXRD), and the effect of homogenization annealing before extrusion on the
Yong Lian   +8 more
doaj   +1 more source

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