Cyclically induced grain growth within shear bands investigated in UFG Ni by cyclic high pressure torsion

2017 ◽  
Vol 32 (23) ◽  
pp. 4317-4326 ◽  
Author(s):  
Marlene Walpurga Kapp ◽  
Oliver Renk ◽  
Thomas Leitner ◽  
Pradipta Ghosh ◽  
Bo Yang ◽  
...  
Keyword(s):  
High Pressure ◽  
Grain Growth ◽  
High Pressure Torsion ◽  
Shear Bands ◽  
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Abstract

scholarly journals High density of shear bands in the Vitreloy bulk metallic glass subjected to high-pressure torsion

2021 ◽  
Vol 1008 ◽  
pp. 012031
Author(s):  
Vasily Astanin ◽  
Dmitry Gunderov ◽  
Zhi Qiang Ren ◽  
Ruslan Valiev ◽  
Jing Tao Wang
Keyword(s):  
High Pressure ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
High Pressure Torsion ◽  
Shear Bands ◽  
High Density

Multiple Shear Bands in Zr-Based Bulk Metallic Glass Processed by Severe Plastic Deformation

2018 ◽  
Vol 385 ◽  
pp. 319-324 ◽  
Author(s):  
Evgeniy Boltynjuk ◽  
Evgeniy Ubyivovk ◽  
Dmitriy Gunderov ◽  
Vladimir Mikhalovskii ◽  
Ruslan Z. Valiev
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
High Pressure Torsion ◽  
Shear Bands ◽  
Processing Temperature ◽  
Structural Studies ◽  
Temperature Shear ◽  
Nm Range

The Zr62Cu22Al10Fe5Dy1 bulk metallic glass was subjected to high pressure torsion (HPT) processing at temperatures of 20 and 150°C. Structural studies were carried out by TEM on the lamella-sample prepared from the HPT-specimens in transversal direction to the specimen plane. TEM studies revealed formation of multiple shear bands with spacings in a 20-50 nm range for both HPT states. Shear bands could be divided in two types: primary and secondary bands. The morphology of shear bands strongly depends on the processing temperature. Shear bands are distributed homogeneously throughout the whole lamella-sample for state processed by HPT at temperature of 20°C. Regions with shear bands are divided by amorphous regions on lamella-sample cut from the sample processed by HPT at temperature of 150°C. Analysis of optical microscopy and SEM data showed that shear bands are distributed throughout the whole volume of HPT-specimens.

Hydrogen generation from pure water using Al–Sn powders consolidated through high-pressure torsion

2016 ◽  
Vol 31 (6) ◽  
pp. 775-782 ◽  
Author(s):  
Fan Zhang ◽  
Ryo Yonemoto ◽  
Makoto Arita ◽  
Zenji Horita
Keyword(s):  
High Pressure ◽  
Hydrogen Generation ◽  
High Pressure Torsion ◽  
Pure Water ◽  
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Abstract

Nanomechanical behavior and structural stability of a nanocrystalline CoCrFeNiMn high-entropy alloy processed by high-pressure torsion

2015 ◽  
Vol 30 (18) ◽  
pp. 2804-2815 ◽  
Author(s):  
Dong-Hyun Lee ◽  
In-Chul Choi ◽  
Moo-Young Seok ◽  
Junyang He ◽  
Zhaoping Lu ◽  
...  
Keyword(s):  
High Pressure ◽  
Structural Stability ◽  
High Pressure Torsion ◽  
High Entropy Alloy ◽  
High Entropy ◽  
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Abstract

Kinetics of Grain Growth upon the Heating of Nickel Deformed by High-Pressure Torsion

2021 ◽  
Vol 122 (6) ◽  
pp. 559-565
Author(s):  
L. M. Voronova ◽  
M. V. Degtyarev ◽  
T. I. Chashchukhina
Keyword(s):  
High Pressure ◽  
Grain Growth ◽  
High Pressure Torsion ◽  
Kinetics Of

Recrystallization and Grain Growth in Ultra Fine Grained Materials Produced by High Pressure Torsion

2012 ◽  
Vol 715-716 ◽  
pp. 373-373
Author(s):  
Anahita Khorashadizadeh ◽  
Myrjam Winning ◽  
Stefan Zaefferer ◽  
Dierk Raabe
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
High Pressure ◽  
Severe Plastic Deformation ◽  
Grain Growth ◽  
High Pressure Torsion ◽  
Fine Grained ◽  
Fine Grained Material

Investigations of the microstructure of materials processed via severe plastic deformation methods such as high pressure torsion (HPT) and their recrystallization behaviour is of great interest as they are capable of producing ultra fine grained material (UFD) with good mechanical properties.

Microstructural evolution of cryomilled Ti/Al mixture during high-pressure torsion

2014 ◽  
Vol 29 (4) ◽  
pp. 578-585 ◽  
Author(s):  
Hamed Bahmanpour ◽  
Yu Sun ◽  
Tao Hu ◽  
Dalong Zhang ◽  
Jittraporn Wongsa-Ngam ◽  
...  
Keyword(s):  
High Pressure ◽  
Microstructural Evolution ◽  
High Pressure Torsion ◽  
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Abstract

scholarly journals Using high-pressure torsion to process an aluminum–magnesium nanocomposite through diffusion bonding

2015 ◽  
Vol 31 (1) ◽  
pp. 88-99 ◽  
Author(s):  
Megumi Kawasaki ◽  
Byungmin Ahn ◽  
HanJoo Lee ◽  
Alexander P. Zhilyaev ◽  
Terence G. Langdon
Keyword(s):  
High Pressure ◽  
Diffusion Bonding ◽  
High Pressure Torsion ◽  
Through Diffusion ◽  
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Abstract

scholarly journals Fabrication of nanocomposites through diffusion bonding under high-pressure torsion

2018 ◽  
Vol 33 (18) ◽  
pp. 2700-2710 ◽  
Author(s):  
Megumi Kawasaki ◽  
Jae-Kyung Han ◽  
Dong-Hyun Lee ◽  
Jae-il Jang ◽  
Terence G. Langdon
Keyword(s):  
High Pressure ◽  
Diffusion Bonding ◽  
High Pressure Torsion ◽  
Through Diffusion ◽  
Image Position

Abstract

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