Results 21 to 30 of about 32,436 (283)
Extraction of biological hydroxyapatite from tuna fish bone for biomedical applications [PDF]
, 2020 Natural hydroxyapatite (HAp) is known for its common use in biomedical applications including in orthopaedic and implantation. HAp can be extracted from natural resources such as eggshells, fish bones and coral.
Abdullah, H.Z. +6 more
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Experimental Study on Cross Wedge Rolling of 21-4N Heat Resistant Steel
Metals, 2019 21-4N is a typical heat resistant steel used as the material of exhaust valves. The application of cross wedge rolling to manufacture preform for valves has the advantages of higher efficiency and better quality.
Zhenhua Zheng
doaj +1 more source
Rotary compression as a new calibration test for prediction of a critical damage value
Journal of Materials Research and Technology, 2020 The article presents the problem of ductile fracture of metals and metal alloys formed in hot working conditions. The basic damage criteria used in modelling fracture as well as calibrating tests used to determine the critical damage values were ...
Zbigniew Pater +2 more
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How to Stop (Worrying and Love) the Bubble: Boundary Changing Solutions [PDF]
, 2007 We discover that a class of bubbles of nothing are embedded as time dependent scaling limits of previous spacelike-brane solutions. With the right initial conditions, a near-bubble solution can relax its expansion and open the compact circle ...
A. Adams +33 more
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Multi Wedge Cross Rolling of Axle Forgings
Archives of Metallurgy and Materials, 2022 This paper presents the results of research into the cross wedge rolling (CWR) process of axle forgings. The presented results concern the parallel rolling process with two wedges. The use of two parallel wedges is aimed at shortening the tool length (increasing productivity) and reducing the values of wedge opening angles and increasing the forming ...
openaire +1 more source
Metalurgija, 2022 With the deepening and popularization of the cross wedge rolling process, the requirements for the cross wedge rolling blanks have become wider and wider. Relying only on the traditional round blanks will restrict the promotion of the cross wedge rolling
Q. J. Lian, X. D. Shu, T. Z. Chen
doaj
MicroED data collection and processing. [PDF]
, 2015 MicroED, a method at the intersection of X-ray crystallography and electron cryo-microscopy, has rapidly progressed by exploiting advances in both fields and has already been successfully employed to determine the atomic structures of several proteins ...
de la Cruz, M Jason +6 more
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工程科学学报, 2016 Wall thinning occurs at transition shoulders in cross wedge rolling (CWR) hollow parts without a mandrel, which will reduce the mechanical strength of the parts, so improving the wall thickness of the shoulder must be resolved.
YANG Cui-ping +2 more
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Fabrication and structural characterization of Fe‑Al‑based laminated composites
Литьë и металлургия, 2021 The paper presents the results of experimental studies of the structural characteristics of layered composites based on the Fe‑Al system; obtained using various solid‑phase methods of material deformation (hydropercussion stamping; cross‑wedge rolling ...
F. I. Rudnitski +4 more
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Study of detonation interactions inside a 2-D ejector using detonation transmission tubing [PDF]
, 2010 Study of detonation interactions inside a two-dimensional ejector using detonation transmission tubing was reported. The main objective of the ejector assembly in the study is to make the flow-field as close to 2-D as possible.
G. Jagadeesh +5 more
core +1 more source