نتایج جستجو برای: laser surface hardening
تعداد نتایج: 808653 فیلتر نتایج به سال:
X-ray computed tomography (CT) enables the visualisation and dimensional evaluation of both the internal and external geometry of a workpiece, it is therefore well suited for measuring geometric features that are otherwise inaccessible to tactile and optical instruments. Beam hardening is a wellknown physical process that can degrade the quality of CT images and influence edge detection algorit...
We investigated the strengthening mechanism of laser shock processing (LSP) at high temperatures in the K417 nickel-based alloy. Using a laser-induced shock wave, residual compressive stresses and nanocrystals with a length of 30-200 nm and a thickness of 1 μm are produced on the surface of the nickel-based alloy K417. When the K417 alloy is subjected to heat treatment at 900 °C after LSP, most...
40CrNiMo steel, which is a commonly used material for sprag clutch wedges, widely in practice, and the surface wear will seriously affect performance of product. In this study, steel was strengthened at two scanning speeds by laser hardening. After hardening, hardness can reach use requirement wedge. By changing speed temperature, friction testing machine to study behavior after hardening again...
E. Tillová, L. Kuchariková, M. Chalupová, J. Belan, A. Vaško, I. Švecová, University of Žilina, Faculty of Mechanical Engineering, Slovak Republic This work is focused on the effect of the laser surface treatment (laser power 50 and 80 W) on microstructure and corrosion properties of self-hardened AlZn10Si8Mg cast alloy used for engine and vehicle constructions. The electrochemical impedance sp...
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