Search Results - "Langdon, T.G."

Superplasticity of a nano-grained Mg–Gd–Y–Zr alloy processed by high-pressure torsion by Alizadeh, R., Mahmudi, R., Ngan, A.H.W., Huang, Y., Langdon, T.G.

“…While most of the reports on Mg–Gd–Y–Zr alloys report superplasticity after extrusion or friction stir processing, it is important to investigate…”
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Hardening of an Al0.3CoCrFeNi high entropy alloy via high-pressure torsion and thermal annealing by Tang, Q.H., Huang, Y., Huang, Y.Y., Liao, X.Z., Langdon, T.G., Dai, P.Q.

“…High-pressure torsion (HPT) and thermal annealing were applied to a face-centered cubic as-cast Al0.3CoCrFeNi high entropy alloy. Processing by HPT produced a…”
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Microstructural evolution and superplasticity in an Mg–Gd–Y–Zr alloy after processing by different SPD techniques by Alizadeh, R., Mahmudi, R., Pereira, P.H.R., Huang, Y., Langdon, T.G.

“…Mg–Gd–Y–Zr alloys have attracted much attention recently due to their ability to exhibit stable fine-grained microstructures and their potential superplastic…”
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Enhanced grain refinement and microhardness by hybrid processing using hydrostatic extrusion and high-pressure torsion by Bazarnik, P., Huang, Y., Lewandowska, M., Langdon, T.G.

“…An investigation was conducted to examine the microstructure and mechanical properties of an Al-5483 aluminium alloy subjected to a hybrid severe plastic…”
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Effect of spark plasma sintering and high-pressure torsion on the microstructural and mechanical properties of a Cu–SiC composite by Bazarnik, P., Nosewicz, S., Romelczyk-Baishya, B., Chmielewski, M., Strojny Nędza, A., Maj, J., Huang, Y., Lewandowska, M., Langdon, T.G.

“…This investigation examines the problem of homogenization in metal matrix composites (MMCs) and the methods of increasing their strength using severe plastic…”
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Enhanced strength–ductility synergy in nanostructured Cu and Cu–Al alloys processed by high-pressure torsion and subsequent annealing by An, X.H., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…Nanostructured Cu and Cu–Al alloys processed by high-pressure torsion were isochronally annealed to investigate the effects of the stacking fault energy (SFE)…”
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Effects of equal-channel angular pressing and accumulative roll-bonding on hydrogen storage properties of a commercial ZK60 magnesium alloy by Asselli, A.A.C., Leiva, D.R., Huot, J., Kawasaki, M., Langdon, T.G., Botta, W.J.

“…The hydrogen storage properties of a commercial ZK60 magnesium alloy were investigated after processing by equal-channel angular pressing (ECAP) and…”
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The effect of dislocation density on the interactions between dislocations and twin boundaries in nanocrystalline materials by Ni, S., Wang, Y.B., Liao, X.Z., Figueiredo, R.B., Li, H.Q., Ringer, S.P., Langdon, T.G., Zhu, Y.T.

“…The interactions between dislocations and twin boundaries (TBs) are significantly affected by both intrinsic material properties and extrinsic factors,…”
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Concurrent microstructural evolution of ferrite and austenite in a duplex stainless steel processed by high-pressure torsion by Cao, Y., Wang, Y.B., An, X.H., Liao, X.Z., Kawasaki, M., Ringer, S.P., Langdon, T.G., Zhu, Y.T.

“…A duplex stainless steel with approximately equal volume fractions of ferrite and austenite was processed by high-pressure torsion. Nano-indentation, electron…”
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The influence of stacking fault energy on the mechanical properties of nanostructured Cu and Cu–Al alloys processed by high-pressure torsion by An, X.H., Lin, Q.Y., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…► Nanostructured Cu and Cu-Al alloys were prepared by high-pressure torsion. ► The strengths increase with decreasing stacking fault energy (SFE). ► The…”
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Evolution of microstructural homogeneity in copper processed by high-pressure torsion by An, X.H., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…Disks of coarse-grained pure Cu were processed by high-pressure torsion (HPT) and the microhardness and microstructural parameters were used to reveal the…”
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Microstructural evolution and mechanical properties of a two-phase Cu–Ag alloy processed by high-pressure torsion to ultrahigh strains by Tian, Y.Z., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…Disks of a coarse-grained Cu–28 wt.% Ag alloy were processed by high-pressure torsion up to 20 revolutions to reveal the microstructural evolution and…”
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Grain boundary formation by remnant dislocations from the de-twinning of thin nano-twins by Cao, Y., Wang, Y.B., An, X.H., Liao, X.Z., Kawasaki, M., Ringer, S.P., Langdon, T.G., Zhu, Y.T.

“…We report a grain boundary formation mechanism in face-centred cubic metals with low stacking fault energies. Severe plastic deformation produces primary…”
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Evolution of defect structures during cold rolling of ultrafine-grained Cu and Cu–Zn alloys: Influence of stacking fault energy by Zhao, Y.H., Horita, Z., Langdon, T.G., Zhu, Y.T.

“…Samples of pure Cu, bronze (Cu–10 wt.% Zn) and brass (Cu–30 wt.% Zn) with stacking fault energies (SFE) of 78, 35, and 14 mJ/m 2, respectively, were processed…”
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Optimizing strength and ductility of Cu–Zn alloys through severe plastic deformation by Zhang, P., An, X.H., Zhang, Z.J., Wu, S.D., Li, S.X., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…The effects of alloying and severe plastic deformation methods on the strength and ductility of Cu–Zn alloys were systematically investigated. Alloying…”
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The role of stacking faults and twin boundaries in grain refinement of a Cu–Zn alloy processed by high-pressure torsion by Wang, Y.B., Liao, X.Z., Zhao, Y.H., Lavernia, E.J., Ringer, S.P., Horita, Z., Langdon, T.G., Zhu, Y.T.

“…A recent model developed to predict the smallest grain sizes obtainable by severe plastic deformation has worked well for materials with medium to high…”
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Determining the optimal stacking fault energy for achieving high ductility in ultrafine-grained Cu–Zn alloys by Zhao, Y.H., Liao, X.Z., Horita, Z., Langdon, T.G., Zhu, Y.T.

“…Bulk ultrafine-grained (UFG) materials produced by severe plastic deformation (SPD) often have low ductility. A previous study demonstrated the possibility of…”
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On the relation between the microstructure and the mechanical behavior of pure Zn processed by high pressure torsion by Srinivasarao, B., Zhilyaev, A.P., Langdon, T.G., Pérez-Prado, M.T.

“…Pure Zn was processed by high pressure torsion (HPT) at room temperature in order to evaluate the effect of this severe plastic deformation (SPD) technique on…”
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Developing superplasticity in a magnesium alloy through a combination of extrusion and ECAP by Matsubara, K., Miyahara, Y., Horita, Z., Langdon, T.G.

“…A new processing procedure was applied to a cast Mg-9% Al alloy. This procedure involves the sequential application of extrusion and equal-channel angular…”
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The effect of severe plastic deformation on precipitation in supersaturated Al–Zn–Mg alloys by Gubicza, J., Schiller, I., Chinh, N.Q., Illy, J., Horita, Z., Langdon, T.G.

“…Experiments were conducted to examine the influence of equal-channel angular pressing (ECAP) on the development of precipitation microstructures in two…”
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