Factors influencing martensite transitions in Fe-based shape memory alloys
Fe-14Mn-6Si-9Cr-5Ni (mass %) shape memory alloy (SMA) specimens were obtained by powder metallurgy in as-blended state (0_MA) and with particle volume fractions of 10 and 20 % MA’d powders, respectively. After hot rolling and solution treatment, between 973 and 1373 K, the specimens were pre-straine...
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2015-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20153304002 |
| _version_ | 1818444786493816832 |
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| author | Mihalache Elena Pricop Bogdan Suru Marius-Gabriel Lohan Nicoleta Monica Comăneci Radu Ioachim Istrate Bogdan Özkal Burak Bujoreanu Leandru-Gheorghe |
| author_facet | Mihalache Elena Pricop Bogdan Suru Marius-Gabriel Lohan Nicoleta Monica Comăneci Radu Ioachim Istrate Bogdan Özkal Burak Bujoreanu Leandru-Gheorghe |
| author_sort | Mihalache Elena |
| collection | DOAJ |
| description | Fe-14Mn-6Si-9Cr-5Ni (mass %) shape memory alloy (SMA) specimens were obtained by powder metallurgy in as-blended state (0_MA) and with particle volume fractions of 10 and 20 % MA’d powders, respectively. After hot rolling and solution treatment, between 973 and 1373 K, the specimens were pre-strained up to 4 %, on a tensile testing machine. The influences of: (i) MA’d fractions, (ii) solution treatment temperature and (iii) pre-straining degree were analysed by X-ray diffraction (XRD), optical (OM) and scanning electron (SEM) microscopy. In this purpose, the gauges of pre-strained specimens were cut and metallographically prepared. Dynamic mechanical analysis (DMA) was employed to emphasize the reverse transformation, during heating, of thermally induced martensite, obtained after solution treatment. The results proved that, as an effect of PM-MA processing, mechanical properties were improved, the amount of stress induced martensite increased and the reverse martensitic transformation was enhanced. |
| first_indexed | 2024-12-14T19:21:28Z |
| format | Article |
| id | doaj.art-ff2f9a641024440d84736c2967fc70d7 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T19:21:28Z |
| publishDate | 2015-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-ff2f9a641024440d84736c2967fc70d72022-12-21T22:50:20ZengEDP SciencesMATEC Web of Conferences2261-236X2015-01-01330400210.1051/matecconf/20153304002matecconf_esomat2015_04002Factors influencing martensite transitions in Fe-based shape memory alloysMihalache Elena0Pricop Bogdan1Suru Marius-Gabriel2Lohan Nicoleta Monica3Comăneci Radu Ioachim4Istrate Bogdan5Özkal Burak6Bujoreanu Leandru-Gheorghe7Faculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiFaculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiFaculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiFaculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiFaculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiFaculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiParticulate Materials Laboratory, Metallurgical and Materials Engineering Department, Istanbul Technical UniversityFaculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of IaşiFe-14Mn-6Si-9Cr-5Ni (mass %) shape memory alloy (SMA) specimens were obtained by powder metallurgy in as-blended state (0_MA) and with particle volume fractions of 10 and 20 % MA’d powders, respectively. After hot rolling and solution treatment, between 973 and 1373 K, the specimens were pre-strained up to 4 %, on a tensile testing machine. The influences of: (i) MA’d fractions, (ii) solution treatment temperature and (iii) pre-straining degree were analysed by X-ray diffraction (XRD), optical (OM) and scanning electron (SEM) microscopy. In this purpose, the gauges of pre-strained specimens were cut and metallographically prepared. Dynamic mechanical analysis (DMA) was employed to emphasize the reverse transformation, during heating, of thermally induced martensite, obtained after solution treatment. The results proved that, as an effect of PM-MA processing, mechanical properties were improved, the amount of stress induced martensite increased and the reverse martensitic transformation was enhanced.http://dx.doi.org/10.1051/matecconf/20153304002 |
| spellingShingle | Mihalache Elena Pricop Bogdan Suru Marius-Gabriel Lohan Nicoleta Monica Comăneci Radu Ioachim Istrate Bogdan Özkal Burak Bujoreanu Leandru-Gheorghe Factors influencing martensite transitions in Fe-based shape memory alloys MATEC Web of Conferences |
| title | Factors influencing martensite transitions in Fe-based shape memory alloys |
| title_full | Factors influencing martensite transitions in Fe-based shape memory alloys |
| title_fullStr | Factors influencing martensite transitions in Fe-based shape memory alloys |
| title_full_unstemmed | Factors influencing martensite transitions in Fe-based shape memory alloys |
| title_short | Factors influencing martensite transitions in Fe-based shape memory alloys |
| title_sort | factors influencing martensite transitions in fe based shape memory alloys |
| url | http://dx.doi.org/10.1051/matecconf/20153304002 |
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