Hot Deformation Mechanisms of an As-Extruded TiAl Alloy with Large Amount of Remnant Lamellae
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DOI: 10.1007/s11665-017-2592-z
Abstract: The hot deformation mechanisms of an as-extruded Ti-44Al-5V-1Cr alloy with a large amount of remnant lamellae were investigated by hot compression tests at temperatures of 900-1250 °C and strain rates of 0.001-1 s−1. The hot processing map… read more here.
Keywords: mechanisms extruded; hot deformation; amount; deformation ... See more keywords
Hot Deformation Mechanisms of Ti22Al25Nb Orthorhombic Alloy
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DOI: 10.1007/s11665-019-3858-4
Abstract: In this paper, the hot deformation behavior of Ti22Al25Nb was investigated by hot compression over a range of temperatures (950-1050 °C) and strain rates (0.001-1 s−1). Considering the adiabatic heating and friction, the original curves were corrected.… read more here.
Keywords: hot deformation; deformation; work hardening; flow stress ... See more keywords
Conventional vs harmonic-structured β-Ti-25Nb-25Zr alloys: A comparative study of deformation mechanisms
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DOI: 10.1016/j.actamat.2018.09.032
Abstract: Abstract Harmonic alloys processed by powder metallurgy are constituted by a core of coarse grains embedded in an interconnected small grains shell. They have attracted attention due to their excellent strength combined with large ductility,… read more here.
Keywords: 25nb 25zr; harmonic structured; structured 25nb; deformation ... See more keywords
Exploring novel deformation mechanisms in aluminum–copper alloys using in situ 4D nanomechanical testing
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DOI: 10.1016/j.actamat.2019.07.016
Abstract: Abstract Even after nearly a century of extensive use of aluminum alloys in structural applications, our understanding of such precipitation-strengthened materials is far from complete. With the advent of next generation advanced characterization techniques, our… read more here.
Keywords: nanomechanical testing; situ nanomechanical; deformation mechanisms; exploring novel ... See more keywords
Revealing the deformation mechanisms of nanograins in gradient nanostructured Cu and CuAl alloys under tension
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DOI: 10.1016/j.actamat.2019.09.021
Abstract: Abstract A gradient nanostructured (GNS) surface layer was induced on coarse-grained (CG) Cu and CuAl alloys by means of surface mechanical grinding treatment. The GNS/CG Cu-4.5Al sample subjected to tensile tests yields at a higher… read more here.
Keywords: gradient nanostructured; revealing deformation; deformation; cual alloys ... See more keywords
Deformation mechanisms and ductile fracture characteristics of a friction stir processed transformative high entropy alloy
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DOI: 10.1016/j.actamat.2019.11.056
Abstract: Abstract Deformation mechanisms of a friction stir processed Fe40Mn20Co20Cr15Si5 transformative high entropy alloy using three different process parameters were studied to explain the microstructural dependence of tensile response in these specimens. The relative strain hardening… read more here.
Keywords: stir processed; deformation; deformation mechanisms; friction stir ... See more keywords
Elemental partitions and deformation mechanisms of L12-type multicomponent intermetallics
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DOI: 10.1016/j.actamat.2021.117238
Abstract: Abstract Multicomponent high-entropy alloys (HEAs) with compositionally disordered elemental arrangement have attracted extensive attention because of their excellent mechanical properties. However, these alloys usually exhibit low strength at elevated temperatures. Recent works suggest that HEAs… read more here.
Keywords: partitions deformation; multicomponent; multicomponent intermetallics; deformation ... See more keywords
Numerical study of atomic scale deformation mechanisms of Ti grains with different crystallographic orientation subjected to scratch testing
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DOI: 10.1016/j.apsusc.2018.12.021
Abstract: Abstract Atomic scale deformation mechanisms of Ti single- and bicrystals subjected to scratch testing were studied experimentally and using molecular dynamics simulation. The numerical model explicitly considers the crystallographic orientation of Ti crystallites experimentally determined… read more here.
Keywords: scale deformation; subjected scratch; atomic scale; deformation ... See more keywords
Atomistic simulation of the tension/compression response of textured nanocrystalline HCP Zr
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DOI: 10.1016/j.commatsci.2016.12.038
Abstract: Abstract Molecular dynamics virtual tension/compression tests were performed to study the deformation mechanisms in nanocrystalline (15–38 nm grain size) 50 grains HCP Zr columnar samples with random [1 −1 0 0] prismatic and [0 0 0 1] basal textures. Two different embedded… read more here.
Keywords: atomistic simulation; simulation tension; compression; tension compression ... See more keywords
Characterization of cyclic behavior, deformation mechanisms, and microstructural evolution of MarBN steels under high temperature conditions
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DOI: 10.1016/j.ijfatigue.2019.105270
Abstract: Abstract In this paper, the low cycle fatigue behaviour of MarBN steels at elevated temperatures is discussed. Four cyclic loading waveforms were applied to investigate both the mechanical and microstructural features. The mechanical results exhibit… read more here.
Keywords: cyclic behavior; marbn; behavior deformation; marbn steels ... See more keywords
Deformation mechanisms during high temperature tensile creep of Ti3AlC2 MAX phase
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DOI: 10.1016/j.jallcom.2016.09.194
Abstract: Abstract The deformation mechanisms involved in the tensile creep of a Ti 3 AlC 2 specimen deformed, at 900 °C, to a 7.5% final strain are investigated through SEM and TEM observations. Tensile creep strain rate… read more here.
Keywords: temperature tensile; high temperature; tensile creep; deformation ... See more keywords