Self-annealing in a two-phase Pb-Sn alloy after processing by high-pressure torsion
Self-annealing in a two-phase Pb-Sn alloy after processing by high-pressure torsion
A Pb-62% Sn two-phase eutectic alloy was processed by high-pressure torsion (HPT) and stored at room temperature (RT) to investigate the occurrence of self-annealing. The microstructural characteristics and mechanical properties were recorded during self-annealing using scanning electron microscopy, tensile testing and nanoindentation. Processing by HPT produces a weakening effect but storage at RT leads to a gradual increase in the hardness together with significant grain growth. Nanoindentation tests were performed by applying both the indentation depth-time (h-t) relationship at the holding stage and the hardness, H, at various loading rates in order to explore the evolution of the strain rate sensitivity (SRS), m. The results obtained by tensile testing and nanoindentation are consistent despite the large difference in the volumes of the examined regions, thereby confirming the validity of using nanoindentation to measure the strain rate sensitivity.
350-359
Zhang, Nianxian
1f72e293-27fe-41d4-956c-7e8c8a40b3b0
Chinh, Nguyen Q.
8e075269-61a9-469c-8f71-3d52eb37dadc
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
1 June 2016
Zhang, Nianxian
1f72e293-27fe-41d4-956c-7e8c8a40b3b0
Chinh, Nguyen Q.
8e075269-61a9-469c-8f71-3d52eb37dadc
Kawasaki, Megumi
944ba471-eb78-46db-bfb7-3f0296d9ef6d
Huang, Yi
9f4df815-51c1-4ee8-ad63-a92bf997103e
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Zhang, Nianxian, Chinh, Nguyen Q., Kawasaki, Megumi, Huang, Yi and Langdon, Terence G.
(2016)
Self-annealing in a two-phase Pb-Sn alloy after processing by high-pressure torsion.
Materials Science and Engineering: A, 666, .
(doi:10.1016/j.msea.2016.04.058).
Abstract
A Pb-62% Sn two-phase eutectic alloy was processed by high-pressure torsion (HPT) and stored at room temperature (RT) to investigate the occurrence of self-annealing. The microstructural characteristics and mechanical properties were recorded during self-annealing using scanning electron microscopy, tensile testing and nanoindentation. Processing by HPT produces a weakening effect but storage at RT leads to a gradual increase in the hardness together with significant grain growth. Nanoindentation tests were performed by applying both the indentation depth-time (h-t) relationship at the holding stage and the hardness, H, at various loading rates in order to explore the evolution of the strain rate sensitivity (SRS), m. The results obtained by tensile testing and nanoindentation are consistent despite the large difference in the volumes of the examined regions, thereby confirming the validity of using nanoindentation to measure the strain rate sensitivity.
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Accepted/In Press date: 20 April 2016
e-pub ahead of print date: 23 April 2016
Published date: 1 June 2016
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 393716
URI: http://eprints.soton.ac.uk/id/eprint/393716
ISSN: 0921-5093
PURE UUID: 5d030b42-b51c-4e5b-89d7-b1870a2799cc
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Date deposited: 03 May 2016 11:03
Last modified: 15 Mar 2024 05:32
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Contributors
Author:
Nianxian Zhang
Author:
Nguyen Q. Chinh
Author:
Megumi Kawasaki
Author:
Yi Huang
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