Results 21 to 30 of about 6,758 (143)

Effect of Boron Content and Cooling Rate on the Microstructure and Boride Formation of β-Solidifying γ-TiAl TNM Alloy

open access: yesMetals, 2020
Boron is a unique and popular grain refiner element in cast titanium aluminide (TiAl) alloys, as it helps to improve mechanical properties if properly alloyed.
Daniel Bernal   +3 more
doaj   +1 more source

Investigations on Microstructure and Properties of 16 wt% Cr-3 wt% B-0.6 wt% C-1 wt% Mn-Fe Alloy

open access: yesMetals, 2018
In this paper, a wear-resistant alloy with the chemical composition of 16 wt% Cr-3 wt% B-0.6 wt% C-1 wt% Mn-Fe, in which M2B was the antifriction skeleton, was prepared in a medium-frequency induction furnace. The microstructure and mechanical properties
Jiawei Ding   +3 more
doaj   +1 more source

Boride-derived oxygen-evolution catalysts

open access: yes, 2021
Metal borides/borates are promising candidates to become high-performance alkaline oxygen evolution reaction catalysts. This study reports an in-situ phase composition modulation approach to fabricate boride/borate-based ...
Yan, Yu,   +45 more
core   +2 more sources

Microstructure and mechanical properties of a new type of austempered boron alloyed high silicon cast steel [PDF]

open access: yesChina Foundry, 2013
In the present paper, a new type of austempered boron alloyed high silicon cast steel has been developed, and its microstructures and mechanical properties at different temperatures were investigated.
Chen Xiang, Li Yanxiang
doaj  

Features of the welded seam material crystalliza-tion in Ti-TiB alloy under electron-beam welding conditions

open access: yesMechanics and Advanced Technologies, 2023
Natural metal composite materials represent a promising class of modern structural materials that need to be welded. Such materials can be welded by fusion, as has been established with the Ti-TiB alloy as an example.
Petro Loboda   +6 more
doaj   +1 more source

Influence of boron content on boride characteristics in cast Ti-45Al-2Mn-2Nb-xB alloys

open access: yesMaterials & Design, 2022
The morphology and crystal structure of borides in Ti-45Al-2Mn-2Nb-xB (at.%) alloys containing different amount of B have been investigated to reveal the relationship between B content and boride formation.
Ruxin Cao   +6 more
doaj   +1 more source

Cr5B3 with the Shastry–Sutherland lattices

open access: yesActa Crystallographica Section E: Crystallographic Communications
The structural parameters of pentachromium triboride, Cr5B3, with Shastry–Sutherland lattices were refined based on single-crystal X-ray diffraction data. Cr5B3 crystallizes in the space group I4/mcm (No.
Makoto Tokuda   +3 more
doaj   +1 more source

Sulfur-bound biomarkers of a Monterey shale and a Greenland lake sediment [PDF]

open access: yes, 2009
Seeking to reconstruct the biogeochemical processes that produced organic sulfur compounds in two unique depositional environments, we used the nickel boride desulfurization reaction to release hydrocarbons from sulfur-bound macromolecules not otherwise ...
Joshua Stern, Joshua G. Stern
core   +1 more source

Study on wear resistant cast B-containing 1Cr18Ni9Ti stainless steel [PDF]

open access: yesChina Foundry, 2009
The developed 1Cr18Ni9Ti austenitic stainless steel containing 1.63 wt.%B have been characterized by X-ray diffraction (XRD), electron probe microanalyzer (EPMA), optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray ...
Kuang Jiacai   +2 more
doaj  

New inhibitors of bacterial hyaluronidase - synthesis and structure-activity relationships [PDF]

open access: yes, 2006
Potent and selective inhibitors of hyaluronidases are not reported in the literature so far. Such compounds are required as pharmacological tools to investigate the physiological and pathophysiological role of the enzymes and their preferred substrate ...
Braun, Stephan
core   +1 more source

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