Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Deformation behaviors"”.
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Quantifying the interface deformation mechanisms in nanostructured metals with atomic simulations and continuum field representations
… A well-established consensus is that the deformation behaviors of these materials are governed by the extremely high density of interfaces. Previous studies have shown that, at nanoscale, interfaces act not only as obstacles of dislocations but also as main sources for dislocation …
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Investigation and modeling of processing-microstructure-property relations in ultra-fine grained hexagonal close packed materials under strain path changes
… to identify the general trends in their deformation behaviors, microstructural features, crystallographic texture evolutions and mechanical responses under strain path changes. UFG hcp materials, including commercial purity Ti, Ti-6Al-4V alloy and high purity Zr, were fabricated using …
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Insights into the edifice stability of oceanic volcanoes from direct shear experiments and numerical models
… field within the edifice regarding edifice deformation. It is shown that volcanic rocks exhibit high friction (µ ≥ 0.6). The composition, minerology and rate-and-state friction however are highly variable between samples from the same and different volcanic edifices. Thus, whether a rock and …
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Design and analysis of non-threaded drill pipe connector.
… package to identify the maximum stress and deformation behaviors for the Snap-Latch Ring prototypes that were designed. The initially proposed Snap-Latch Ring parameters were optimized, running several simulations to identify scope for further improvement. The Snap-Latch Ring prototypes were …
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Microstructure Dual-Refinement and Mechanical Properties Manipulation of TiBw/TA15(Si) Composites by Thermo-mechanical Processing and Heat Treatment
… matrix and TiBw reinforcement during the hot deformation were studied. Ideal thermo-mechanical processing parameters in dual-phase region for TiBw/TA15(Si) composites after solid solution treatment was obtained, and the strain distribution in the compressive sample was revealed. Subsequently, …
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Elevated temperature mechanical properties of line pipe steels
The effects of deformation temperature near the dynamic strain aging (DSA) regime on the tensile properties of X70 and X52 line pipe steels were evaluated. Testing temperatures of interest were in the range of 25 to 350 °C, at engineering strain rates in the range of approximately 10 4 to 10 3 s 1. …
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Selective laser melting of Ti-35NB alloy: Processing, microstructure and properties
… challenges in the field. Since the mechanical behaviors and chemical properties directly depend on the microstructural homogeneity and phase composition, an in-depth understanding of the effect of inhomogeneity is required. It is necessary to have further advances in manufacturing optimization …