Remanufacturing has become popular as a system for reducing CO2 emissions caused by the life cycle of products. Therefore, producing more components via remanufacturing is important. Shot peening can be used to render surface defects harmless owing compressive residual stress effects. This study investigated effects shot means gears. In this study, carburized steel specimens containing artifici...

One factor that plays an important role in the aerodynamic performance of aeroengines is shape blades, which vulnerable to change resulting from plastic deformation and residual stresses induced by complex manufacturing processes, especially shot peening. However, few studies were focused on detailed strategies peening profile superposition effects during entire processes. In this paper, based ...

Photon Induced Positron Annihilation (PIPA) and related portable technologies’ have demonstrated their ability to nondestructively quantify shot peening/surface treatments and relaxation effects in single crystal superalloys and steels with a single measurement as part of a National Science Foundation SBIR program. PIPA measurement of surface treatment effects provides a demonstrated ability to...

One of the traditional methods used to improve fatigue properties metallic materials is shot peening. More recently, cavitation peening, in which surface treated using impact, has been developed, and improvements this makes life strength have reported. In order clarify difference between these two methods, stainless steel SUS316 L samples were by peening evaluated utilizing a displacement contr...

Purpose This study aims to investigate the effect of mechanical peening on cooling rate a subsequently deposited layer in hybrid additive manufacturing (AM) process. Design/methodology/approach In this experimental study, 20 layers 316 L stainless steel are built via directed energy deposition, with tenth being subject various processes (shot peening, hammer and laser shock peening). The micros...

Shot-peening treatment was applied to a quenched and tempered DIN 34CrNiMo6 steel improve its high-cycle R: −1 axial fatigue strength. Compared with the machined condition, increase in limit 21.8%. S-N curves for shot-peened as condition were presented compared those obtained previous research rotating bending fatigue, including mirror-polished specimens. The shot-peening this work (Isp: 8A 200...

A COUPLED CREEP-PLASTICITY MODEL FOR RESIDUAL STRESS RELAXATION OF A SHOT-PEENED NICKEL-BASE SUPERALLOY Name: Dennis Justin Buchanan University of Dayton, 2007 Advisor: Dr. R. A. Brockman Shot peening has been employed in numerous industries for decades to impart beneficial compressive residual stresses on the surface of metal components. Compressive residual stresses retard initiation of surfa...

A Cr3C2-Al2O3-NiCr composite coating was prepared on an INCONEL600 alloy surface through high-velocity oxygen-fuel spraying followed by further processing high-energy shot peening to create the coating. The microhardness and friction properties of are analyzed a tester reciprocating tester. microscopic structure wear trace were scanning electron microscope (SEM). element distribution energy-dis...

The near-surface properties of maraging steels are key to controlling their mechanical properties. They can be tailored by surface treatments such as shot peening and also influenced prior machining. This study aims at determining the respective roles grinding processes on microstructure Custom 465 stainless steel. A combination experimental techniques, including X-ray diffraction (XRD), transm...