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Elastic Surface Waves on Surface-Strengthened Glasses
The Journal of the Acoustical Society of America, 1972Phase velocities of surface elastic waves on surface-treated glasses have been measured over the frequency range 3–30 MHz. The surface waves were launched by means of a solid wedge and were subsequently detected by means of a laser probe. Since these inhomogeneous waves are confined to a surface layer approximtaely one wavelength thick, these ...
Joseph A. Bucaro, Charles M. Davis
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Acta Materialia, 2017 Surface mechanical attrition treatment (SMAT) is a high strain and strain rate severe plastic deformation (SPD) technique for surface nanocrystallization of metals.
Sumit Bahl +2 more
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Surface strengthening of titanium by impregnation
Metal Science and Heat Treatment of Metals, 19601. The development of an industrially applicable process of surface strengthening of titanium or its alloys by chemical thermal impregnation methods has not yet progressed sufficiently. 2. Greatest success was achieved in nitriding with pure metered-out nitrogen or nitrogen under vacuum.
A. V. Smirnov, A. D. Nachinkov
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The Strengthening Mechanism of Resin Cements on Porcelain Surfaces
Journal of Dental Research, 2006All-ceramic crowns bonded with resin cements have increased performance, and two theories have been proposed. Marquis (1992) suggested that the resin modified defects by crack healing, while Nathanson (1993) proposed that resin polymerization shrinkage strengthened porcelains. Both theories imply a sensitivity of strengthening to defect size.
G J P, Fleming +4 more
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Surface Strengthening by Water Jet Peening
1999Fatigue strength improvement of metallic components can be obtained by generating compressive residual stresses in sub-surface layers, for example by shot peening. The main drawback of conventional shot peening technique is related to surface integrity deterioration.
COLOSIMO, BIANCA MARIA, MONNO, MICHELE
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Laser Strengthening of a Steel Surface with Fullerene Coating
Doklady Physics, 2018Modification of a steel surface by coating with fullerenes C60 and subsequent treatment by intense laser radiation has been investigated. The initial samples are made of low-carbon steel. The laser source is a commercial LTA4-1 laser with a wavelength of 1.064 µm, pulse energy up to 12 J, and pulse width of 2 ms. The obtained dependences of the surface
G. Bocharov +6 more
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SURFACE STRENGTHENING TECHNOLOGY FOR MECHANICAL PARTS
Surface Review and Letters, 2020This paper has summarized five surface strengthening methods, and these methods could to improve the surface properties of materials. The selection of mechanical parts materials has determined according to their working conditions. The work-piece in using cannot avoid defects in the material.
WENBO LIU +5 more
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Tool for Strengthening of the Component Surface Layers
Materials Science Forum, 2020The operational characteristics of metal components are often determined by the status of surface. In mechanical loading of solid bodies, the impact of the surface properties on formation and spreading of surface cracks is obvious, mainly as regards cyclic loading. Therefore, it is important to pay attention to knowledge of surface properties and their
Marian Králik +2 more
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Static strengthening of frictional surfaces of ice
Acta Materialia, 2013Abstract Systematic slide–hold–slide experiments were performed at −10 °C on both first year sea ice and freshwater ice. The sliding velocity ranged from 10−6 to 10−4 m s−1 and the holding time from th = 1 to 104 s under an apparent normal stress of 60 kPa.
Erland M. Schulson, Andrew L. Fortt
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Surface oxide strengthening of zirconium
Materials Letters, 1989Abstract The mechanical behaviour of the zirconium-zirconium oxide system was examined. The surface zirconium oxide was found to increase the strength of the zirconium metal substrate. In the range of oxide thickness, 50–225 nm, the ultimate tensile strength and the fracture strain of the zirconium-zirconium oxide composite system were observed to ...
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