Results 271 to 280 of about 122,922 (297)

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.
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Surface strengthening produced by an inherent polycrystalline layer

Metallurgical Transactions A, 1976
Inherent polycrystalline layers 20 to 40 μm thick were produced on Cu single crystal substrates by a controlled surface abrasion and annealing technique. A surface zone produced in this fashion theoretically minimizes certain parameters associated with film strengthening such as, film-substrate modulus differences, chemical composition gradients, film ...
B. J. Berkowitz, J. C. Bilello
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[Strengthen the study of the ocular surface reconstruction].

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology, 2011
Serious ocular surface damage caused by chemical and thermal burn has the characteristics of wide prevalence of the population, high blinding rate and hard to treat. Ocular surface reconstruction is an effective management in treating damaged ocular surface, but there still exist some common misunderstanding including inappropriate surgery time ...
Jia-qi, Chen, Jin, Yuan
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Interface strengthening by mechanical surface treatment of substrates

Surface Engineering, 1998
Today's cutting tool research activities are concentrated on improving the properties of tools by optimizing manufacturing technologies and tool geometries, by alloying special cutting materials, and by coating tools. During dry drilling of tempered steel the wear mechanisms of (Ti1−xAlx)N coated WC carbide tools were investigated.
H. K. Tönshoff, A. Mohlfeld, I. Oberbeck-Spintig, C. Marzenell   +3 more
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Compressive surface strengthening of brittle materials

Journal of Materials Science, 1984
A theoretical approach has been put forward for predicting the strengthening of materials by the introduction of surface compressive stresses. An approximate technique was used to determine the closure length of a linear surface crack which extends through the compressive surface layer. The stress intensity factor of the partially closed crack was then
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Strengthening of a zinc silicate glass by surface crystallization

Materials Letters, 2017
Abstract Glasses with the composition 41ZnO·49SiO2·4La2O3·6Al2O3 were crystallized 100 K above glass transition temperature. This resulted in the surface crystallization of an unknown phase chemically close to willemite. After 20 h, a 85 µm thick surface layer was formed which was composed of dendrite-like structures and an interpenetrating glass ...
Christian Bocker, Christian Funke, Christian Rüssel   +2 more
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Ways to Strengthen Glass: Modification of the Surface Layer

Glass and Ceramics, 2016
The strength of glass can be increased by modifying the surface layer. The following are examined: graded glass in which the glass strength in increased by means of the CLTE differential over the glass thickness; ion bombardment at room temperature where large atoms are embedded (implanted) in the glass in a strong electromagnetic field; protective ...
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On surface damage and film strengthening

Scripta Metallurgica, 1971
J. Pridans, B. Berkowitz, J.C. Bilello
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SURFACE STRENGTHENING TECHNOLOGY FOR MECHANICAL PARTS

Surface Review and Letters, 2021
Wenbo Liu, Xuefeng Yang, Guofeng Xia
exaly  

Effect of work-hardening capacity on the gradient layer properties of metallic materials processed by surface spinning strengthening

Materials Characterization, 2021
Q Wang
exaly