Results 181 to 190 of about 9,560 (208)
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Brittle to Ductile Transition in Intermetallic Alloys
MRS Proceedings, 2002ABSTRACTTwo distinct approaches are commonly invoked to explain the brittle to ductile transition of a material in the presence of a crack. In one approach, dislocation mobility plays the key role. In the other approach, the competition between crack tip dislocation nucleation and cleavage failure plays the key role.
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Brittle to ductile transition – An engineer’s point of view
Materials & Design (1980-2015), 2014Abstract Knowledge of mechanisms and governing parameters of various modes of damage to structural materials is very important in numerous aspects of practical physical metallurgy–steel production, manufacture of welded joints with required properties, or identification of damage causes in industrial accidents. The apparently simple task of finding a
Tibor Šmida, Vladimír Magula
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Transition between brittle and ductile erosional fracture
Doklady Physics, 2002Generally, analysis of surface erosion by solid-particle impact should be conducted by invoking the apparatus of fracture mechanics. However, conventional quasi-static modeling cannot provide explanations of many observed effects, because static criteria are inconsistent with the essential dynamics of erosion. Erosion processes are characterized by the
N. F. Morozov +2 more
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Size scale effects on brittle to ductile transition
Le Journal de Physique IV, 1998In the present paper the influence of a specific microstructural feature on the brittle to ductile behaviour of semi-brittle materials is emphasised. The dislocation free zone size (formerly introduced to account for the behaviour of these materials) for which incomplete crack tip shielding is expected, is a function of the dislocation sources activity.
G. Michot +2 more
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Brittle fracture and the brittle-to-ductile transition of tungsten
Journal of Nuclear Materials, 2003The aim of this paper is to shortly review the experimental observations and the theoretical understanding of the fracture behaviour of tungsten in the brittle and semi-brittle regime. Advances in the understanding of the mechanisms of fracture processes are made by direct comparison of microscopic modelling and carefully designed experiments.
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Brittle to Ductile Transition in Sliding Wear of Alumina
2008Tetsuya Senda +4 more
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Effect of cutting tool geometries on the ductile-brittle transition of monocrystalline sapphire
International Journal of Mechanical Sciences, 2018Hao Wang, Qingliang Zhao, Junmin Xue
exaly