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 |
|