Results 41 to 50 of about 6,758 (143)

Fabrication and properties of (Zr0.2Ti0.2Ta0.2Nb0.2Cr0.2)B2 high-entropy ceramic by hot-press sintering

open access: yesJournal of Aeronautical Materials
The five-component high-entropy boride ceramic (Zr0.2Ti0.2Ta0.2Nb0.2Cr0.2)B2 is successfully prepared via hot-press sintering at 1800 ℃. A systematic investigation is conducted on its phase composition,microstructure,mechanical properties and high ...
LI Qi   +4 more
doaj   +1 more source

Formation of copper boride on Cu(111)

open access: yes, 2021
Boron forms compounds with nearly all metals, with notable exception of copper and other group IB and IIB elements. Here, we report an unexpected discovery of ordered copper boride grown epitaxially on Cu(111) under ultrahigh vacuum.
Chengguang Yue   +11 more
core   +1 more source

Effect of boron on microstructure evolution and properties of wear-resistant cast Fe–Si–Mn–Cr–B alloy

open access: yesJournal of Materials Research and Technology, 2020
The purpose of this study was to clarify the effect of boron content on the microstructure evolution, mechanical properties, and three-body abrasive wear property of as-cast Fe–Si–Mn–Cr–B alloys, and to reveal the wear mechanism of Fe–Si–Mn–Cr–B alloys ...
Zhang Changle   +4 more
doaj   +1 more source

Corrosion behavior of boride diffusion layer on CoCrMo alloy surface [PDF]

open access: yes, 2020
87-95In the present study, the corrosion behaviour of CoCrMo ASTM F75 alloy with boride diffusion layer and under simulated physiological conditions has been investigated using electrochemical methods.
Márquez-Herrera, Alfredo   +5 more
core  

Optimization on Tribological Behaviour of AA7075/Zirconium Boride Composites Using Taguchi Technique

open access: yesAdvances in Materials Science and Engineering, 2022
The impact of wear factors on composite materials is examined in this article. Stir casting was used to produce AA7075 alloys with varied nano-zirconium boride weight ratios. The dry sliding wear test was done utilizing pin-on-disc test equipment.
S. Krishna Mohan   +8 more
doaj   +1 more source

Kinetics and mechanical properties of borided GCr15 bearing steel

open access: yes工程科学学报, 2018
The kinetics and mechanical properties of borided GCr15 bearing steel was investigated. The boriding treatment was carried out in a solid medium at 1123, 1173, 1223, and 1323 K for 2, 4, 6, and 8 h.
ZONG Xiao-ming   +3 more
doaj   +1 more source

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  

Hydrogen sorption properties of the composed system calcium hydride – magnesium boride

open access: yes, 2010
The hydrogen sorption properties of the calcium hydride – magnesium boride system as evaluated by manometric and calorimetric analyses are ...
G. D’Alì Staiti   +4 more
core  

Investigation of the fracture mechanics of boride composites [PDF]

open access: yes, 1971
Fracture energies of WC-6Co, Boride 5 (ZrB2+SiC), Boride 8(ZrB2+SiC+C) and Boride 8-M2(ZrB2+SiC+C) were measured by slow bend and impact tests of notched charpy bars.
Clougherty, E. V.   +2 more
core  

Microstructure and Properties of Diffusion Boride Layer on Die Steel

open access: yes, 2011
Diffusion boride layer has been produced on the surface of a hot work tool steel. The microstructure and elemental spectra as well as depth profiles of the elements in the boride layer have been studied by scanning electron microscopy, X-ray diffraction ...
Alexander S. Chaus   +2 more
core   +1 more source

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