Results 101 to 110 of about 12,821 (221)

Influence of boron additions on physical and mechanical properties of arc-melted tungsten and tungsten - 1 percent tantalum alloy [PDF]

open access: yes
Influence of boron additions on physical and mechanical properties of arc-melted tungsten and of tungsten-tantalum ...
Klopp, W. D., Raffo, P. L.
core   +1 more source

Axial residual stresses in boron fibers [PDF]

open access: yes
The axial residual stress distribution as a function of radius was determined from the fiber surface to the core including the average residual stress in the core.
Behrendt, D. R.
core   +1 more source

Mechanical properties of reactive sintered high-entropy boride/carbide composite

open access: yesOpen Ceramics
High-entropy equimolar (Ti-Zr-Nb-Ta-Hf)B2 - (Ti-Zr-Nb-Ta-Hf)C dual–phase boride/carbide composite was prepared via a two-step spark plasma sintering (SPS).
Ines Sara Moussaoui   +8 more
doaj   +1 more source

ANALYSIS OF THERMODYNAMIC FUNCTIONS OF FERRUM BORIDES

open access: yesNauka ta progres transportu, 2010
The thermodynamic functions of iron boride and carbon-alloyed one Fe2(ВС) are considered. It is shown that iron boride Fe2B is quite thermodynamically stable within the temperature range from 1023 to 1223 K.
N. Yu. Filonenko, O. Yu. Bereza
doaj  

Improving Ballistic Resistance of Armor Steel by FCAW with Hardfacing Alloys of Fe–Mo–Mn–B–C System

open access: yesManagement Systems in Production Engineering
Armor steels can be strengthened against modern ballistic threats through surface hardfacing with advanced Fe-based alloys. This study develops a series of flux-cored arc welded (FCAW) hardfacing alloys in the Fe–Mo–Mn–B–C system to enhance the ballistic
Prysyazhnyuk Pavlo   +7 more
doaj   +1 more source

INVESTIGATION OF PECULIAR FEATURES PERTAINING TO FORMATION OF BORIDE COATINGS ON CARBONITRATED LOW-CARBON STEEL

open access: yesНаука и техника, 2012
The paper contains description about obtaining two-phase boride coatings on preliminary carbonitrated steel 20. The influence of a preliminary carbonitration on phase – and structure formation and properties of the boride coatings has been investigated ...
V. F. Protasevich, G. V. Stasevich
doaj  

BORATING OF CARBON AND ALLOY STEEL IN BOILING LAYER

open access: yesНаука и техника, 2012
The paper describes how to obtain boride coatings on steel 20, 4X5MФС, X12M being treated in a boiling layer of metallothermic powder environment.
N. G. Koukhareva   +4 more
doaj  

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

The Hardness of Boride Layer on the S45C Iron (A preliminary study on surface hardening of ferrous material)

open access: yesAceh International Journal of Science and Technology, 2012
The property such as microhardness of boride layer formed on S45C iron was investigated. Boronizing was carried out in a solid medium consisting of nano size powders of 50% B4C as a donor, 45% SiC as a diluent, and 5% KBF4 as an activator treated at ...
Sutrisno, Bambang Soegijono
doaj  

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