Effect of grain size on compressive behaviour of titanium at different strain rates
Effect of grain size on compressive behaviour of titanium at different strain rates
An investigation was conducted to evaluate the dependence on grain size of the compressive deformation of commercial purity (CP) Ti. Tests were performed at room temperature using grain sizes from coarse-grained CG (20 ?m) to ultrafine-grained UFG (500 nm) and nanocrystalline NC (90 nm) with testing strain rates in the range from 0.01 to 10 s?1. The results show the flow stress and the strain rate sensitivity of CP Ti increase with decreasing grain size. Work hardening dominates at all strain rates in CG Ti but it balances with flow softening at 0.01 and 0.1 s?1 in UFG and NC Ti and there is obvious flow softening in these two materials at 10 s?1.
compressive deformation, flow softening, grain size effects, strain rate sensitivity, titanium
311-317
Zhang, Shixiong
48cab2f9-3e6f-4065-9b8b-bdfeb9b10468
Wang, Ying Chun
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Zhilyaev, Alexander P.
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Korznikova, Elena
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Li, Shukui
cf36cc37-f03a-4b4c-8f34-590354846838
Raab, Georgy I.
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Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
1 October 2015
Zhang, Shixiong
48cab2f9-3e6f-4065-9b8b-bdfeb9b10468
Wang, Ying Chun
5c067a6f-de5d-4fcb-9b0d-80a42c3634b0
Zhilyaev, Alexander P.
d053e518-1976-4633-8953-e8f34b9b7c44
Korznikova, Elena
6a623244-e24f-4b73-8ae6-e569be301dd1
Li, Shukui
cf36cc37-f03a-4b4c-8f34-590354846838
Raab, Georgy I.
7561dd79-c69c-42bd-828a-bfc1a42a776f
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhang, Shixiong, Wang, Ying Chun, Zhilyaev, Alexander P., Korznikova, Elena, Li, Shukui, Raab, Georgy I. and Langdon, Terence G.
(2015)
Effect of grain size on compressive behaviour of titanium at different strain rates.
Materials Science and Engineering: A, 645, .
(doi:10.1016/j.msea.2015.08.031).
Abstract
An investigation was conducted to evaluate the dependence on grain size of the compressive deformation of commercial purity (CP) Ti. Tests were performed at room temperature using grain sizes from coarse-grained CG (20 ?m) to ultrafine-grained UFG (500 nm) and nanocrystalline NC (90 nm) with testing strain rates in the range from 0.01 to 10 s?1. The results show the flow stress and the strain rate sensitivity of CP Ti increase with decreasing grain size. Work hardening dominates at all strain rates in CG Ti but it balances with flow softening at 0.01 and 0.1 s?1 in UFG and NC Ti and there is obvious flow softening in these two materials at 10 s?1.
Text
__userfiles.soton.ac.uk_Library_SLAs_Work_for_ALL's_Work_for_ePrints_Accepted Manuscripts_Zhang_Effect.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 8 August 2015
e-pub ahead of print date: 11 August 2015
Published date: 1 October 2015
Keywords:
compressive deformation, flow softening, grain size effects, strain rate sensitivity, titanium
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 382386
URI: http://eprints.soton.ac.uk/id/eprint/382386
ISSN: 0921-5093
PURE UUID: b2a24ce8-8728-41c0-bf47-1f2064cb9bf7
Catalogue record
Date deposited: 27 Oct 2015 10:59
Last modified: 15 Mar 2024 03:14
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Contributors
Author:
Shixiong Zhang
Author:
Ying Chun Wang
Author:
Alexander P. Zhilyaev
Author:
Elena Korznikova
Author:
Shukui Li
Author:
Georgy I. Raab
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