Microstructural evolution in ultrafine-grained Ti-6Al-4V alloy processed by high-pressure torsion
Microstructural evolution in ultrafine-grained Ti-6Al-4V alloy processed by high-pressure torsion
A commercial cold-rolled Ti-6Al-4V sheet was subjected to1073K/1h+823K/3h AC, and equiaxed αphase and very little lamellar structure was obtained. The processing by HPT was performed at room temperature with a pressure of 6.0 GPa and a rotation speed of 1 rpm. Processing of the material was conducted through total numbers of revolutions, N, of 1/4, 1/2, 1, 2, 5, 10 and 20. The dislocations increase with the increasing numbers of turns, grain refinement is achieved and the grains are reasonably equiaxed and uniformly distributed with an average size of ~100 nm. There is a typical logarithmic function relation between the microhardness values and the numbers of the turns. In addition, the microhardness values and the corresponding equivalent strain were linear.
Zhang, Wenjing
da38eb71-b53f-4b36-aef3-c8f04fd5fa8d
Ding, Hua
ee45a7ac-be95-4481-aa4a-5662f1301338
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Gao, Mingyuan
cdfcdd7b-762c-404f-b522-326a535b7609
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
27 October 2016
Zhang, Wenjing
da38eb71-b53f-4b36-aef3-c8f04fd5fa8d
Ding, Hua
ee45a7ac-be95-4481-aa4a-5662f1301338
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Gao, Mingyuan
cdfcdd7b-762c-404f-b522-326a535b7609
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhang, Wenjing, Ding, Hua, Huang, Yi, Gao, Mingyuan and Langdon, Terence G.
(2016)
Microstructural evolution in ultrafine-grained Ti-6Al-4V alloy processed by high-pressure torsion.
The 9th Asian Workshop on Micro/Nano Forming Technology, University Hotel, Jinan, China.
27 - 30 Oct 2016.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A commercial cold-rolled Ti-6Al-4V sheet was subjected to1073K/1h+823K/3h AC, and equiaxed αphase and very little lamellar structure was obtained. The processing by HPT was performed at room temperature with a pressure of 6.0 GPa and a rotation speed of 1 rpm. Processing of the material was conducted through total numbers of revolutions, N, of 1/4, 1/2, 1, 2, 5, 10 and 20. The dislocations increase with the increasing numbers of turns, grain refinement is achieved and the grains are reasonably equiaxed and uniformly distributed with an average size of ~100 nm. There is a typical logarithmic function relation between the microhardness values and the numbers of the turns. In addition, the microhardness values and the corresponding equivalent strain were linear.
Text
AWMFT2016-Abstract
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More information
Accepted/In Press date: 31 August 2016
Published date: 27 October 2016
Venue - Dates:
The 9th Asian Workshop on Micro/Nano Forming Technology, University Hotel, Jinan, China, 2016-10-27 - 2016-10-30
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 407734
URI: http://eprints.soton.ac.uk/id/eprint/407734
PURE UUID: 594ee543-eb07-4118-bc15-50e3dffff9e8
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Date deposited: 25 Apr 2017 01:04
Last modified: 16 Mar 2024 04:07
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Contributors
Author:
Wenjing Zhang
Author:
Hua Ding
Author:
Yi Huang
Author:
Mingyuan Gao
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