Results 121 to 130 of about 1,586,315 (313)
Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source
Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion
Advanced Engineering Materials, EarlyView.Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello +7 more
wiley +1 more source
ROLE OF PERCUTANEOUS BONE MARROW INJECTION IN NON UNION OF FRACTURES
National Journal of Medical Research, 2017 Introduction: In hypertrophic non union rigid fixation is needed, in atrophic non union of bone biological solution is needed either bone graft, bone growth factors, stem cells, demineralised bone matrix etc.
Shivaraj S Konde +4 more
doaj
Advanced Engineering Materials, EarlyView.Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé +9 more
wiley +1 more source
Open Access Rheumatology: Research and Reviews, 2018 Snezana Tomasevic-Todorovic,1 Atina Vazic,2 Abukari Issaka,3 Fahad Hanna4 1Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia; 2Higher School, College of Professional Studies in Education of Teachers, Kikinda, Serbia; 3Department of Climate ...
Tomasevic-Todorovic S +3 more
doaj
Vitamin D3 and calcium to prevent hip fractures in elderly women.
New England Journal of Medicine, 1992 M. Chapuy +7 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome +6 more
wiley +1 more source
Current approaches to the diagnosis and treatment of postmenopausal osteoporosis
Терапевтический архив, 2009 Postmenopausal osteoporosis (OP) is a disease afflicting every three women above 50 years of age. The sociomedical significance of OP is determined by the development of fracture in minimal injuries resulting in disability and, occasionally, death.
Irina Aleksandrovna Baranova +1 more
doaj