Results 221 to 230 of about 112,686 (262)

SURFACE STRENGTHENING TECHNOLOGY FOR MECHANICAL PARTS

Surface Review and Letters, 2020
This 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, XUEFENG YANG, ZHUANG WAN, GUOFENG XIA, DAN LI, SHOUREN WANG   +5 more
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Strengthening of steels by surface hardening

Metal Science and Heat Treatment, 1969
1. The degree of hardening and magnitude of the residual stresses resulting from burnishing depend on the chemical composition, properties, and structure of steels. The greatest increase of hardness and residual compressive stresses was observed in steels with a martensitic structure and the lowest in steels with a sorbitic structure. 2.
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Surface oxide strengthening of zirconium

Materials Letters, 1989
Abstract 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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Strengthening of Heat-Insulating Surfaces

2004
The methods of pulsed-plasma dynamic, laser strengthening of the coating surfaces, and coating formation by thermogaseous plasma deposition of finely-dispersed particles are used to form fine and nanocrystalline structures on the outer surfaces of the heat-insulating coatings.
V.I. Bogdanovich, V.A. Barvinok
openaire   +1 more source

Capillary Migration of Peptide Nanowires for Surface Strengthening

Biomacromolecules
This study explores the capillarity-guided self-assembly of cyclo-diphenylalanine (FF) nanowires on surface defects with engineered topographies, emphasizing the interplay between geometric confinement and evaporation-driven flow. Evaporation on v-groove and trench substrates induces directional migration and alignment of FF nanowires, forming ordered,
Ho Young Lee, Joonseok Lee, Wonsik Eom, Won Jun Lee   +3 more
openaire   +2 more sources

Strengthening of face packing surfaces with powders

Chemical and Petroleum Engineering, 1982
The primary reason for failure of centrifugal pumps used in chemical fiber production plants is failure of the tightness of the rubbing surfaces of the face packing surfaces caused by mechanical-corrosion wear. To increase the life, coatings of Ni-Cr-B-Si selffluxing alloy powders are normally applied to their working surface.
N. N. Dorozhkin, V. N. Gimei'farb, L. P. Kashitsyn   +2 more
openaire   +1 more source

Surface Treatments for Fatigue Strengthening

1970
Three broad categories of surface treatments are considered: discrete coatings, surface diffusion treatments, and thermomechanical treatments. From the standpoints of reliability and versatility, surface diffusion treatments appear to be best suited for fatigue strengthening.
openaire   +1 more source

[Strengthening for dental porcelain surface].

Aichi Gakuin Daigaku Shigakkai shi, 1990
Although the metal crown is aesthetically improved when porcelain is fused to it, a large number of different factors often cause the porcelain to break. Here we report a method to prevent this from happening. As a hardening treatment for the porcelain surface, the Na-ions in the porcelain, which have a short radius, were replaced by K-ions having a ...
A, Araki, S, Takehana, N, Tsukamoto, K, Hashimoto, K, Matsuyama, K, Sakuma, K, Sakai   +6 more
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Strengthening the Surface Water Treatment Rule

Journal AWWA, 1993
Changes to the current Surface Water Treatment Rule will likely affect water utility compliance with the new Disinfection‐Disinfection Byproducts Rule. As a result, the reg‐neg committee agreed that the USEPA would propose an interim “enhanced” Surface Water Treatment Rule that would include a wide range of regulatory options.
openaire   +1 more source

Strengthening of Surfaced and Sprayed Coatings by Carbonitration

Chemical and Petroleum Engineering, 2014
The structure and hardness of surfaced and sprayed high-alloy steel coatings strengthened by nitration is studied.
openaire   +1 more source