Results 21 to 30 of about 122,922 (297)

STRENGTHENING OF THE SURFACE BY FRICTION

open access: yesCollection of Scientific Works of the Ukrainian State University of Railway Transport
The study is devoted to the application of the method of surface hardening by friction Object of study - the process of surface hardening by friction.Subject of study - samples of 65G steel the method allows achieving high values of hardness, strength and wear resistance of materials in a short time and at much lower cost compared to other processing ...
Oleg Volkov   +4 more
openaire   +3 more sources

Strengthening the Surface Layer of Tools with State-of-the-Art Technologies

open access: yesУспехи физики металлов, 2021
Increasing both the service life and the wear resistance of the tool by surface hardening is an urgent issue. Its solution contributes to a significant increase in the performance of products.
K. O. Kostyk, V. O. Kostyk, and V. D. Kovalev
doaj   +1 more source

Effect of a combined machining/burnishing tool on the roughness and mechanical properties [PDF]

open access: yes, 2014
Burnishing is a cold working surface treatment process in which plastic deformation of surface irregularities occurs by exerting pressure through a very hard and a very smooth roller or ball on a surface to generate a uniform and work-hardened surface ...
S. Mezlini   +9 more
core   +1 more source

Surface damage mitigation of titanium and its alloys via thermal oxidation: A brief review

open access: yesReviews on Advanced Materials Science, 2019
Titanium (Ti) and its alloys have been extensively applied in various fields of chemical industry, marine, aerospace and biomedical devices because of a specific combination of properties such as high strength to weight ratio, exceptional corrosion ...
Lin Naiming   +15 more
doaj   +1 more source

Microstructure and Properties of High Current Pulsed Electron Beam Surface Alloying on 20 Steel

open access: yesCailiao gongcheng, 2018
To improve the surface properties of 20 steel, the chromium element was alloyed on 20 steel by high current pulsed electron beam (HCPEB) with pre-coating to obtain a high quality of alloyed layers.Microstructure and properties of the alloying layer were ...
ZHENG Huan-huan   +6 more
doaj   +1 more source

Functional coatings application for strengthening and restoration of aviation products

open access: yesAviation, 2005
The article deals with the analysis of modern technologies of surface hardening and restoration of the working parts of aviation products. The technologically sophisticated methods of obtaining multifunctional composite coatings with an application of ...
Sergey Dmitriyev   +3 more
doaj   +1 more source

Improving Mechanical Properties of Mg–Sc Alloy by Surface AZ31 Layer

open access: yesMetals, 2021
Building a gradient structure inside the Mg alloy structure can be expected to greatly improve its comprehensive mechanical properties. In this study, AZ31/Mg–Sc laminated composites with gradient grain structure were prepared by hot extrusion.
Cheng Zhang   +7 more
doaj   +1 more source

Surface smoothening and strengthening combined effect of mechanical hammer peening on inconel 718 superalloy

open access: yes, 2022
In this study, the surface strengthening and smoothening combined effect of the mechanical hammer peening (MHP) treatment is demonstrated. On a IN718 nickel-based superalloy workpiece surface, the MHP treatment introduced a subsurface residual stress ...
Yun Zhu (46269)   +3 more
core   +1 more source

Thermal model for laser-induced discharge surface strengthening

open access: yes, 2011
The temperature field due to laser-induced discharge surface strengthening (LIDSS) has significant influence on the microstructure transformation and also the formation quality of discharge pit. A transient axisymmetric thermal model is developed to
Zhou ZQ(周终强), Wang ZT(王之桐)
core   +1 more source

An Experimental Study on Strengthening Recycled Aggregates Considering Dry Mixing before Slurry Coating

open access: yes, 2022
The strengthening of recycled aggregates is a critical issue, as the low strength of recycled aggregates is the main reason that limits their widespread use.
Shupeng Chai, Xiaomeng Li, Liujun Fan
core   +1 more source

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