Results 91 to 100 of about 4,115 (221)

The effect of the borosintering process in iron-based materials on abrasive and sliding wear

open access: yesRevista de Metalurgia
Boriding is usually performed separately after sintering in powder metallurgy methods. In the borosintering process, sintering and boriding processes are carried out simultaneously. This saves energy as it shortens the heat treatment time. Additionally,
Lutuf Ertürk, Burhan Selçuk
doaj   +1 more source

Effect of Relative Humidity on the Tribological Properties of Self-Lubricating H3BO3 Films Formed on the Surface of Steel Suitable for Biomedical Applications

open access: yesAdvances in Materials Science and Engineering, 2015
The effect of environmental humidity on the self-lubricating properties of a thin film of boric acid (H3BO3) was evaluated. H3BO4 films were successfully formed on the surface of AISI 316L steel.
E. Hernández-Sanchez   +5 more
doaj   +1 more source

ON THE PROBLEM OF STRAIN LOCALIZATION AND FRACTURE SITE PREDICTION IN MATERIALS WITH IRREGULAR GEOMETRY OF INTERFACES

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2019
The interfacial mechanisms of the stress-strain localization in non-homogeneous media are investigated, using a steel substrate - iron boride coating composition subjected to tension as an example.
Ruslan Balokhonov, Varvara Romanova
doaj   +1 more source

Compatibility of refractory materials for nuclear reactor poison control systems [PDF]

open access: yes
Metal-clad poison rods have been considered for the control system of an advanced space power reactor concept studied at the NASA Lewis Research Center. Such control rods may be required to operate at temperatures of about 140O C.
Sinclair, J. H.
core   +1 more source

Исследование термодинамических функций борида железа Fe₂B [PDF]

open access: yes, 2015
Проблематика. Сплави системи Fe-B мають широке практичне застосування завдяки комплексу унікальних фізичних властивостей, але в літературі відсутні відомості щодо термодинамічних функцій фаз цих сплавів з урахуванням внесків, що відповідають за опис ...
Bereza, O. Yu.   +8 more
core  

Effect of tempering temperature on microstructure and mechanical properties of high boron white cast iron [PDF]

open access: yesChina Foundry, 2012
The effect of different tempering temperatures on the microstructure and mechanical properties of air-quenched high boron white cast iron was studied. The results indicate that the high boron white cast iron comprises dendritic matrix and inter-dendritic
Liu Zhongli, Li Yanxiang, Chen Xiang
doaj  

X-ray photoelectron spectroscopy study of radiofrequency-sputtered refractory compound steel interfaces [PDF]

open access: yes
Radiofrequency sputtering was used to deposit Mo2C, Mo2B5, and MoSi2 coatings on 440C steel substrates. Both sputter etched and preoxidized substrates were used, and the films were deposited with and without a substrate bias of -300 V. The composition of
Brainard, W. A., Wheeler, D. R.
core   +1 more source

Planar Superconductor-Normal-Superconductor Josephson Junctions in MgB2

open access: yes, 2001
Since the discovery of superconductivity in MgB2 considerable progress has been made in determining the physical properties of the material, which are promising for bulk conductors. Tunneling studies show that the material is reasonably isotropic and has
B. Oh   +8 more
core   +1 more source

The development of precipitation-hardened chromium-base alloys Final report [PDF]

open access: yes
Precipitation with refractory metal carbides for creep resistant chromium-base ...
Brandes, E. A., Hatt, B. A.
core   +1 more source

Application of ESCA to the determination of stoichiometry in sputtered coatings and interface regions [PDF]

open access: yes
X-ray photoelectron spectroscopy was used to characterize radiofrequency sputter deposited films of several refractory compounds. Both the bulk film properties such as purity and stoichiometry and the character of the interfacial region between the film ...
Wheeler, D. R.
core   +1 more source

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