Results 21 to 30 of about 32,436 (285)
Non-contact ultrasonic detection of angled surface defects [PDF]
, 2011 Non-destructive testing is an important technique, and improvements are constantly needed. Surface defects in metals are not necessarily confined to orientations normal to the sample surface; however, much of the previous work investigating the ...
Clough, A. R. +3 more
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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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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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Simulation Research on the Forming Process of Large Axles Rolled by Cross-Wedge Rolling
Transactions of FAMENA, 2022 As a novel metal forming process, cross-wedge rolling (CWR) is widely used in the manufacture of large axles in the rail transportation industry. When the forming process of the axle is studied, its formability becomes one of the key issues in the metal forming process. This paper takes LZ50 axle steel as the research object. Through the application of
Gao, Hongwei, Fan, Qinhong, Chu, Zhibing
openaire +2 more sources
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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