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Twenty-five years of ultrafine-grained materials: achieving exceptional properties through grain refinement
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TLDR
In this article, an overview of the more recent developments in this field, with special emphasis on the opportunities for achieving homogeneity in the as-processed materials and on the general characteristics of the mechanical properties achieved after SPD processing.About:
This article is published in Acta Materialia.The article was published on 2013-11-01. It has received 614 citations till now.read more
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Modelling of Texture Evolution in High Pressure Torsion by Crystal Plasticity Finite Element Method
TL;DR: In this article, the texture evolution during high pressure torsion (HPT) of aluminum single crystal is predicted by the crystal plasticity finite element method (CPFEM) model integrating with Bassani & Wu hardening model.
Journal ArticleDOI
On the Structural Features of Mechanically Alloyed Cu-Ag and Au-Co by Severe Cold and Cryogenic Plastic Deformation
T. P. Tolmachev,V. P. Pilyugin,V. P. Pilyugin,A. I. Ancharov,A. I. Ancharov,A. M. Patselov,E. G. Chernyshev,K.V. Zolotarev +7 more
TL;DR: In this paper, the effect of cryogenic temperature on the formation of solid solutions by mechanical alloying using synchrotron diffraction and some additional methods was studied using two systems with different positive enthalpy of mixing (Cu-Ag и Au-Co) were involved.
Journal ArticleDOI
Report of International NanoSPD Steering Committee and statistics on recent NanoSPD activities
TL;DR: The 6th International Conference on Nanomaterials by Severe Plastic Deformation (NanoSPD6) as discussed by the authors was held at the Universite de Lorraine in Metz, France.
Journal ArticleDOI
Experimental and Numerical Analyses of the Consolidation Process of AA 7075–2 wt.% ZrO 2 Powders by Equal Channel Angular Pressing
TL;DR: In this article, the AA 7075 matrix composite was obtained by mechanical alloying using ZrO2 particles as reinforcement, and the powders were cold-compacted into an aluminum tube and consolidated by equal channel angular pressing at 220°C.
Journal ArticleDOI
In situ TEM observations of thickness effect on grain growth in pure titanium thin films
Chaogang Ding,Chen Wanji,Shima Sabbaghianrad,Jie Xu,Debin Shan,Bin Guo,Terence G. Langdon,Terence G. Langdon +7 more
TL;DR: In this paper, the authors investigated the grain growth inhibition in the UFG pure Ti thin film by in-situ transmission electron microscopy (TEM) and found that the gradient microstructures with average grain size ranging from ~129-nm to ~655-nm are formed under TEM heating up to 800-°C for 30 min.
References
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Journal ArticleDOI
The Deformation and Ageing of Mild Steel: III Discussion of Results
TL;DR: In this paper, an attempt is made to explain the observed phenomena in the yielding and ageing of mild steel, described in two previous papers, in the general terms of a grain-boundary theory.
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Bulk nanostructured materials from severe plastic deformation
TL;DR: In this article, the authors present methods of severe plastic deformation and formation of nanostructures, including Torsion straining under high pressure, ECA pressing, and multiple forging.
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Principles of equal-channel angular pressing as a processing tool for grain refinement
TL;DR: In this article, a review examines recent developments related to the use of ECAP for grain refinement including modifying conventional ECAP to increase the process efficiency and techniques for up-scaling the procedure and for the processing of hard-to-deform materials.
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Using high-pressure torsion for metal processing: Fundamentals and applications
TL;DR: High pressure torsion (HPT) is a well-known technique for metal forming as discussed by the authors, where samples are subjected to a compressive force and concurrent torsional straining.
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Diffusional Viscosity of a Polycrystalline Solid
TL;DR: In this article, it is suggested that mosaic boundaries and boundaries between grains of nearly the same orientation may not serve as sources or sinks of the diffusion currents, in which case the creep rate will depend only on the configuration of grain boundaries having a sizable orientation differen...