Results 21 to 30 of about 1,450 (264)
Accommodation of large plastic strains and defect accumulation in nanocrystalline Ni grains [PDF]
Journal of Materials Research, 2007 A transmission electron microscopy (TEM) study has been carried out to uncover how dislocations and twins accommodate large plastic strains and accumulate in very small nanocrystalline Ni grains during low-temperature deformation. We illustrate dislocation patterns that suggest preferential deformation and nonuniform defect storage inside the ...
X.L. Wu, E. Ma
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Failure of discontinuous railhead edges due to plastic strain accumulation
Engineering Failure Analysis, 2014 Abstract Railhead is perhaps the highest stressed civil infrastructure due to the passage of heavily loaded wheels through a very small contact patch. The stresses at the contact patch cause yielding of the railhead material and wear. Many theories exist for the prediction of these mechanisms of continuous rails; this process in the discontinuous ...
Thaminda Bandula-Heva +1 more
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Materials Research Express, 2021 In this study, for the first time, the effect of applied strains and volume percentage of components of layered composite on the mechanical properties and fracture toughness of Al/Mg were investigated experimentally.
M Delshad Gholami +4 more
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The influence of new severe plastic deformation on microstructure, mechanical, and corrosion properties of Mg-0.8Mn-0.5Ca alloy [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2023 In this research, the effect of accumulative extrusion bonding (AEB) on the microstructure and mechanical properties of Mg-0.8Mn-0.5Ca biocompatible alloy was investigated.
Khani M. +3 more
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Discontinuous Dynamic Recrystallization during Accumulative Back Extrusion of a Magnesium Alloy [PDF]
Journal of Ultrafine Grained and Nanostructured Materials, 2013 The study of nucleation mechanism of new grains during severe plastic deformation of magnesium alloys is of great importance to control the characteristics of final microstructures.
S.M. Fatemi-Varzaneh +2 more
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Yantu gongcheng xuebao, 2023 As the foundation of cold region projects and the supporting wall of artificial freezing projects, the frozen soil often bears the disturbance of dynamic loads.
ZHANG Binlong 1, 2, WANG Dayan 2, MA Wei 2, LEI Lele 3, ZHOU Zhiwei 2
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Metals, 2015 Austenitic stainless steels X4CrNi18-12 and X8CrMnNi19-6-3 were processed by accumulative roll bonding (ARB). Both materials show an extremely high yield strength of 1.25 GPa accompanied by a satisfactory elongation to failure of up to 14% and a positive
Mathis Ruppert +4 more
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Metals, 2023 Shape memory alloys (SMAs) are types of materials that can restore their original shape upon severe or quasi-plastic deformation, being exposed to specific external stimuli, including heating, electric current, magnetic field, etc. They are a category of
Mahmoud Ebrahimi +5 more
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Mechanical Behavior of an Ultrafine/Nano Grained Magnesium Alloy [PDF]
Journal of Ultrafine Grained and Nanostructured Materials, 2017 The application of magnesium alloys is greatly limited because of their relatively low strength and ductility. An effective way to improve the mechanical properties of magnesium alloy is to refine the grains.
Seyed Mahmood Fatemi +1 more
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Frontiers in Earth ScienceThe shakedown state of the subgrade is crucial for the sustainable design and long-term stability evaluation of pavement structures. In order to characterize the plastic deformation and shakedown behavior of subgrade soil in seasonal frozen regions ...
Shujian Wang +8 more
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