Results 21 to 30 of about 527,812 (346)
Creep Behavior of Near α High Temperature Ti-6.6Al-4.6Sn-4.6Zr-0.9Nb-1.0Mo-0.32Si Alloy
Frontiers in Materials, 2021 This study focuses on the microstructure characteristics and tensile and creep properties of a near α high temperature Ti-6.6Al-4.6Sn-4.6Zr-0.9Nb-1.0Mo-0.32Si alloy. Microstructure characteristics were quantitatively investigated using optical microscopy,
Dongye Yang +4 more
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Reviews on Advanced Materials Science, 2020 Grain refinement is the most universal and effective method of strengthening metallic materials, which is known as the “Hall-Petch” relationship. However, when grain size is refined to sub-micro regime (Ultrafine Grain, UFG) or even nano regime (Nano ...
Hu Yusheng +7 more
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Revisiting the Application of Field Dislocation and Disclination Mechanics to Grain Boundaries
Metals, 2020 We review the mechanical theory of dislocation and disclination density fields and its application to grain boundary modeling. The theory accounts for the incompatibility of the elastic strain and curvature tensors due to the presence of dislocations and
Claude Fressengeas, Vincent Taupin
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Eurasian Journal of Emergency Medicine, 2022 Aim:The Cunningham method allows for the reduction of anterior shoulder dislocations (ASD) without procedural sedation and analgesia (PSA) in some patients. This pilot study evaluates the feasibility of investigating whether the administration of inhaled
Samuel Campbell +6 more
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Dislocations in graphene [PDF]
New Journal of Physics, 2008 We study the stability and evolution of various elastic defects in a flat graphene sheet and the electronic properties of the most stable configurations. Two types of dislocations are found to be stable: "glide" dislocations consisting of heptagon-pentagon pairs, and "shuffle" dislocations, an octagon with a dangling bond.
Ana Carpio +4 more
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Strain Rate of Metal Deformation in the Machining Process from a Fluid Flow Perspective
Applied Sciences, 2020 Metal cutting speeds are getting faster with the development of high-speed cutting technology, and with the increase in cutting speed, the strain rate will become larger, which makes the study of the metal cutting process more inconvenient.
Keguo Zhang +3 more
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Journal of Education and Teaching in Emergency Medicine, 2016 History of present illness: A 25-year-old female presented to the emergency department with left wrist pain following a fall off a skateboard. The patient fell on her outstretched left wrist with the wrist dorsiflexed and reported immediate sharp pain ...
John Jiao, Shannon Toohey
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Statistical dynamics of dislocation systems: The influence of dislocation-dislocation correlations [PDF]
Physical Review B, 2001 During plastic deformation of crystalline materials, the collective dynamics of interacting dislocations gives rise to various patterning phenomena. A crucial and still open question is whether the long range dislocation-dislocation interactions which do not have an intrinsic range can lead to spatial patterns which may exhibit well-defined ...
Zaiser, Michael +2 more
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Open anterior hip dislocation in a young adult with exposed femoral head and no neurovascular damage [PDF]
Malaysian Orthopaedic Journal, 2012 Anterior hip dislocation is common in younger adults and is the result of severe, high energy trauma such as high-velocity motor vehicle accidents or falls from great heights.
N Muzaffar, A Hafeez, N Bashir, S Singh
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Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance This work demonstrates dislocation dynamics in body-centered-cubic (BCC) high-entropy alloys (HEAs). The local composition inhomogeneity in these concentrated solutions leads to an unconventional rate-controlling mechanism that governs ...
Bing Chen +5 more
semanticscholar +1 more source