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dc.contributor.author | Gunderov D. | |
dc.contributor.author | Churakova A. | |
dc.contributor.author | Lukianov A. | |
dc.contributor.author | Prokofiev E. | |
dc.contributor.author | Prokoshkin S. | |
dc.contributor.author | Kreizberg A. | |
dc.contributor.author | Raab G. | |
dc.contributor.author | Sabirov I. | |
dc.date.accessioned | 2018-09-18T20:16:38Z | |
dc.date.available | 2018-09-18T20:16:38Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 1064-8887 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/138208 | |
dc.description.abstract | © 2015 Springer Science+Business Media New York The mechanical properties, strain rate sensitivity (m) and deformation activation volume (ΔV) are investigated at the experimental temperatures from 20 to 400°С in a Ti50Ni50alloy in a coarse-grained (CG) state with the austenite grain size D = 200 μm and in an ultrafine-grained (UFG) state with D = 700 μm following an ECAP treatment. It is observed that this treatment improves the yield strength of the alloy compared to its CG-state. The strain rate sensitivity, m, is found to be by a factor of 1.5–2 higher than that of CG-specimens; it increases with the temperature in both states of the material. As the temperature of the material in tension increases up to Т = 150–250°С, parameter ΔV increases to its maximum and with a further growth of the experimental temperature to 400°С, parameter ΔV decreases. The deformation activation volume of the alloy in the UFG-state is by a factor of 2–4 larger than that in the CG-state for the same experimental temperatures. | |
dc.relation.ispartofseries | Russian Physics Journal | |
dc.subject | deformation activation volume | |
dc.subject | deformation behavior | |
dc.subject | nanocrystalline and ultrafine-grained structure | |
dc.subject | shape memory alloys | |
dc.subject | strain rate sensitivity of yield stress | |
dc.title | Investigation of the Deformation Activation Volume of an Ultrafinegrained Ti50Ni50 Alloy | |
dc.type | Article in Press | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS10648887-2015-SID84944930290 |