Intergranular and interphase strains during loading of duplex steel
Duplex stainless steels, consisting of approximately equal amounts of austenite and ferrite, are typically designed to combine the best features of these constituent phases. Such a two phase material is inhomogeneous, and the phases have different elastic and plastic responses under an applied load....
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2015
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| _version_ | 1797081352602910720 |
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| author | Daymond, M Korsunsky, A James, K |
| author_facet | Daymond, M Korsunsky, A James, K |
| author_sort | Daymond, M |
| collection | OXFORD |
| description | Duplex stainless steels, consisting of approximately equal amounts of austenite and ferrite, are typically designed to combine the best features of these constituent phases. Such a two phase material is inhomogeneous, and the phases have different elastic and plastic responses under an applied load. We thus need to understand the stress state of the individual phases during deformation. Neutron diffraction provides a phase specific probe of the elastic strain in bulk material. <em>In situ</em> tensile tests have been carried out at the ISIS pulsed neutron source on rolled duplex steel, with samples cut parallel, perpendicular and 45° to the rolling direction. Elasto-plastic self consistent models have proved highly successful in modelling the phase and grain level response of austenitic and ferritic steels. We have apply the model to the behaviour of duplex steel, selecting a population of grains in the self consistent model including both austenite and ferrite grains. The model successfully describes some features of the load sharing between phases as well as the strain distribution between differently oriented grain families within each phase. |
| first_indexed | 2024-03-07T01:13:18Z |
| format | Journal article |
| id | oxford-uuid:8dc86410-8797-4850-8b85-6237051f8864 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:13:18Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | oxford-uuid:8dc86410-8797-4850-8b85-6237051f88642022-03-26T22:53:24ZIntergranular and interphase strains during loading of duplex steelJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8dc86410-8797-4850-8b85-6237051f8864Engineering & allied sciencesEnglishOxford University Research Archive - Valet2015Daymond, MKorsunsky, AJames, KDuplex stainless steels, consisting of approximately equal amounts of austenite and ferrite, are typically designed to combine the best features of these constituent phases. Such a two phase material is inhomogeneous, and the phases have different elastic and plastic responses under an applied load. We thus need to understand the stress state of the individual phases during deformation. Neutron diffraction provides a phase specific probe of the elastic strain in bulk material. <em>In situ</em> tensile tests have been carried out at the ISIS pulsed neutron source on rolled duplex steel, with samples cut parallel, perpendicular and 45° to the rolling direction. Elasto-plastic self consistent models have proved highly successful in modelling the phase and grain level response of austenitic and ferritic steels. We have apply the model to the behaviour of duplex steel, selecting a population of grains in the self consistent model including both austenite and ferrite grains. The model successfully describes some features of the load sharing between phases as well as the strain distribution between differently oriented grain families within each phase. |
| spellingShingle | Engineering & allied sciences Daymond, M Korsunsky, A James, K Intergranular and interphase strains during loading of duplex steel |
| title | Intergranular and interphase strains during loading of duplex steel |
| title_full | Intergranular and interphase strains during loading of duplex steel |
| title_fullStr | Intergranular and interphase strains during loading of duplex steel |
| title_full_unstemmed | Intergranular and interphase strains during loading of duplex steel |
| title_short | Intergranular and interphase strains during loading of duplex steel |
| title_sort | intergranular and interphase strains during loading of duplex steel |
| topic | Engineering & allied sciences |
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