Evolution of internal strain during plastic deformation in magnesium matrix composites
Synchrotron radiation diffraction during in situ tensile tests has been used to evaluate the internal elastic strains within the grains of magnesium alloy, AZ31, unreinforced and reinforced with 5 and 10% volume of SiC particles. Composites present initial thermal residual stresses, which are positi...
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Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2009-10, Vol.523 (1), p.21-26 |
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container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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creator | Garcés, G. Oñorbe, E. Pérez, P. Denks, I.A. Adeva, P. |
description | Synchrotron radiation diffraction during in situ tensile tests has been used to evaluate the internal elastic strains within the grains of magnesium alloy, AZ31, unreinforced and reinforced with 5 and 10% volume of SiC particles. Composites present initial thermal residual stresses, which are positive (tensile) in the matrix and negative (compressive) in the reinforcing particles. Internal elastic strains evolve in a similar behaviour in the unreinforced AZ31 and in both composites. However, the accumulated elastic strains are reduced in the case of the composite because a part of the applied load is borne by the ceramic particles. |
doi_str_mv | 10.1016/j.msea.2009.06.026 |
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Composites present initial thermal residual stresses, which are positive (tensile) in the matrix and negative (compressive) in the reinforcing particles. Internal elastic strains evolve in a similar behaviour in the unreinforced AZ31 and in both composites. However, the accumulated elastic strains are reduced in the case of the composite because a part of the applied load is borne by the ceramic particles.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2009.06.026</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Applied sciences ; Dispersion hardening metals ; Elasticity. Plasticity ; Exact sciences and technology ; Internal strains ; Magnesium alloys ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metal matrix composites ; Metals. Metallurgy ; Powder metallurgy. 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A, Structural materials : properties, microstructure and processing</title><description>Synchrotron radiation diffraction during in situ tensile tests has been used to evaluate the internal elastic strains within the grains of magnesium alloy, AZ31, unreinforced and reinforced with 5 and 10% volume of SiC particles. Composites present initial thermal residual stresses, which are positive (tensile) in the matrix and negative (compressive) in the reinforcing particles. Internal elastic strains evolve in a similar behaviour in the unreinforced AZ31 and in both composites. However, the accumulated elastic strains are reduced in the case of the composite because a part of the applied load is borne by the ceramic particles.</description><subject>Applied sciences</subject><subject>Dispersion hardening metals</subject><subject>Elasticity. Plasticity</subject><subject>Exact sciences and technology</subject><subject>Internal strains</subject><subject>Magnesium alloys</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metal matrix composites</subject><subject>Metals. Metallurgy</subject><subject>Powder metallurgy. 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subjects | Applied sciences Dispersion hardening metals Elasticity. Plasticity Exact sciences and technology Internal strains Magnesium alloys Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metal matrix composites Metals. Metallurgy Powder metallurgy. Composite materials Production techniques Synchrotron diffraction |
title | Evolution of internal strain during plastic deformation in magnesium matrix composites |
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