Micro-mechanical responses of ultrafine-grained materials processed through high-pressure torsion.
Micro-mechanical responses of ultrafine-grained materials processed through high-pressure torsion.
The processing of metals through the application of high-pressure torsion (HPT) provides the potential for achieving exceptional grain refinement in bulk metal solids. These ultrafine grains in the bulk metals usually show superior mechanical and physical properties. Especially, the development of micro-mechanical behavior is observed after significant changes in microstructure through processing and it is of great importance for obtaining practical future applications of these ultrafine-grained metals. Accordingly, this presentation demonstrates the evolution of small-scale deformation behavior through nanoindentation experiments after HPT on various metallic alloys including a ZK60 magnesium alloy, a Zn-22% Al eutectoid alloy and a high entropy alloy. Special emphasis is placed on demonstrating the essential microstructural changes of these materials with increased straining by HPT and the evolution of the micro-mechanical responses in these materials by measuring the strain rate sensitivity.
42-47
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Jang, Jae Il
7dc02f15-31e3-4c42-a7e3-2ac1f4edca76
Ahn, Byung Min
e08b65ce-56b7-4dc7-b24d-f86a43aa4e77
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
January 2017
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Jang, Jae Il
7dc02f15-31e3-4c42-a7e3-2ac1f4edca76
Ahn, Byung Min
e08b65ce-56b7-4dc7-b24d-f86a43aa4e77
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Kawasaki, Megumi, Jang, Jae Il, Ahn, Byung Min and Langdon, Terence G.
(2017)
Micro-mechanical responses of ultrafine-grained materials processed through high-pressure torsion.
Materials Science Forum, 879, .
(doi:10.4028/www.scientific.net/MSF.879.42).
Abstract
The processing of metals through the application of high-pressure torsion (HPT) provides the potential for achieving exceptional grain refinement in bulk metal solids. These ultrafine grains in the bulk metals usually show superior mechanical and physical properties. Especially, the development of micro-mechanical behavior is observed after significant changes in microstructure through processing and it is of great importance for obtaining practical future applications of these ultrafine-grained metals. Accordingly, this presentation demonstrates the evolution of small-scale deformation behavior through nanoindentation experiments after HPT on various metallic alloys including a ZK60 magnesium alloy, a Zn-22% Al eutectoid alloy and a high entropy alloy. Special emphasis is placed on demonstrating the essential microstructural changes of these materials with increased straining by HPT and the evolution of the micro-mechanical responses in these materials by measuring the strain rate sensitivity.
Text
__filestore.soton.ac.uk_users_yh2a10_mydocuments_Megumi-THERMEC-TGL.pdf
- Accepted Manuscript
Restricted to Registered users only
Request a copy
More information
Accepted/In Press date: 23 September 2016
e-pub ahead of print date: 15 November 2016
Published date: January 2017
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 402935
URI: http://eprints.soton.ac.uk/id/eprint/402935
ISSN: 1662-9752
PURE UUID: f5134332-76c9-4eeb-b91e-0e288fc17b0e
Catalogue record
Date deposited: 18 Nov 2016 15:20
Last modified: 16 Mar 2024 03:28
Export record
Altmetrics
Contributors
Author:
Megumi Kawasaki
Author:
Jae Il Jang
Author:
Byung Min Ahn
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
