Correlation between shear punch and tensile measurements for an AZ31 Mg alloy processed by equal-channel angular pressing
Correlation between shear punch and tensile measurements for an AZ31 Mg alloy processed by equal-channel angular pressing
An AZ31 magnesium alloy was extruded and then processed by equal-channel angular pressing (ECAP) at 200 °C for 1, 2 and 4 passes. The grain structure was refined from 20.2 to 1.6 ?m after 4 passes. The shear punch testing (SPT) technique and uniaxial tensile tests were employed to evaluate the mechanical properties of the extruded and ECAP samples. The 4 pass ECAP alloy showed lower yield stress and higher ductility compared to the as-extruded condition, indicating that texture softening overcame the strengthening effects of grain refinement. The same trends in strength and ductility were also observed in shear punch testing. Three different linear correlations between the shear data and tensile data were established for ductility, yield stress, and ultimate strength. It is shown that SPT is a useful method for evaluating the mechanical properties of small quantities of fine-grained materials processed by ECAP
43-50
Masoudpanah, S.M.
18e52c20-93b8-483a-875d-ff682e8d5b94
Mahmudi, R
d38bc0f2-8ad9-4d31-8f88-9cd22c861349
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2011
Masoudpanah, S.M.
18e52c20-93b8-483a-875d-ff682e8d5b94
Mahmudi, R
d38bc0f2-8ad9-4d31-8f88-9cd22c861349
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Masoudpanah, S.M., Mahmudi, R and Langdon, T.G.
(2011)
Correlation between shear punch and tensile measurements for an AZ31 Mg alloy processed by equal-channel angular pressing.
Kovové Materiály – Metallic Materials, 49 (1), .
Abstract
An AZ31 magnesium alloy was extruded and then processed by equal-channel angular pressing (ECAP) at 200 °C for 1, 2 and 4 passes. The grain structure was refined from 20.2 to 1.6 ?m after 4 passes. The shear punch testing (SPT) technique and uniaxial tensile tests were employed to evaluate the mechanical properties of the extruded and ECAP samples. The 4 pass ECAP alloy showed lower yield stress and higher ductility compared to the as-extruded condition, indicating that texture softening overcame the strengthening effects of grain refinement. The same trends in strength and ductility were also observed in shear punch testing. Three different linear correlations between the shear data and tensile data were established for ductility, yield stress, and ultimate strength. It is shown that SPT is a useful method for evaluating the mechanical properties of small quantities of fine-grained materials processed by ECAP
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Published date: 2011
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 188533
URI: http://eprints.soton.ac.uk/id/eprint/188533
PURE UUID: 4795796f-f1d5-4026-9e49-775f3a2c5aeb
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Date deposited: 26 May 2011 07:29
Last modified: 08 Jan 2022 02:56
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Author:
S.M. Masoudpanah
Author:
R Mahmudi
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