Gefügeumwandlung sowie physikalische und mechanische Eigenschaften von ultrafeinkörnigen, nanokristallinen TiNi-Legierungen unter verschiedenen martensitischen Umwandlungen B2-B19’. / Чуракова, Анна Александровна; Гундеров, Дмитрий Валерьевич; Дмитриев, Сергей Владимирович.
In: Materialwissenschaft und Werkstofftechnik, Vol. 49, No. 6, 27.06.2018, p. 769-783.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Gefügeumwandlung sowie physikalische und mechanische Eigenschaften von ultrafeinkörnigen, nanokristallinen TiNi-Legierungen unter verschiedenen martensitischen Umwandlungen B2-B19’
AU - Чуракова, Анна Александровна
AU - Гундеров, Дмитрий Валерьевич
AU - Дмитриев, Сергей Владимирович
N1 - Funding Information: The research was performed under the partial support of the Russian Foundation for Basic Research, grant No. 16-38-00242 mol a. This work also was supported by grant No. 6.37.204.2016 from Saint Petersburg State University.
PY - 2018/6/27
Y1 - 2018/6/27
N2 - Comprehensive studies on the impact of multiple martensitic transformations B2‐B19′ on the structure and properties of ultrafine‐grained and nanocrystalline titanium‐nickel alloys are implemented. It is shown that in coarse‐grained, ultrafine‐grained and nanocrystalline titanium‐nickel alloys consecutive changes in the structure and properties take place, which are induced by phase hardening, when the number of thermocycles increases up to n = 100 with quick heating and quick cooling to ‐196 °C. During thermal cycling of coarse‐grained and ultrafine‐grained Ti50Ni50 alloys via the chosen regimes, the direction of martensitic transformation temperatures changes. First the temperatures reduce, then they increase with the number of thermocycles growing. The transformation temperatures in the ultrafine‐grained state of Ti49.15Ni50.85 are more resistant to thermal cycling than in the coarse‐grained state. Phase hardening occurs more intensively in ultrafine‐grained states of the studied titanium‐nickel alloys than in coarse‐grained state.
AB - Comprehensive studies on the impact of multiple martensitic transformations B2‐B19′ on the structure and properties of ultrafine‐grained and nanocrystalline titanium‐nickel alloys are implemented. It is shown that in coarse‐grained, ultrafine‐grained and nanocrystalline titanium‐nickel alloys consecutive changes in the structure and properties take place, which are induced by phase hardening, when the number of thermocycles increases up to n = 100 with quick heating and quick cooling to ‐196 °C. During thermal cycling of coarse‐grained and ultrafine‐grained Ti50Ni50 alloys via the chosen regimes, the direction of martensitic transformation temperatures changes. First the temperatures reduce, then they increase with the number of thermocycles growing. The transformation temperatures in the ultrafine‐grained state of Ti49.15Ni50.85 are more resistant to thermal cycling than in the coarse‐grained state. Phase hardening occurs more intensively in ultrafine‐grained states of the studied titanium‐nickel alloys than in coarse‐grained state.
KW - TiNi alloys
KW - martensitic transformations
KW - nanotwins
KW - phase hardening
KW - severe plastic deformation
KW - thermocycling
KW - SEVERE PLASTIC-DEFORMATION
KW - BEHAVIOR
KW - STABILITY
KW - PHASE-TRANSFORMATIONS
KW - SHAPE-MEMORY ALLOY
KW - NITI ALLOY
UR - http://www.scopus.com/inward/record.url?scp=85049138867&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/microstructure-transformation-physical-mechanical-properties-ultrafinegrained-nanocrystalline-tini-a
U2 - 10.1002/mawe.201700179
DO - 10.1002/mawe.201700179
M3 - статья
VL - 49
SP - 769
EP - 783
JO - Materialwissenschaft und Werkstofftechnik
JF - Materialwissenschaft und Werkstofftechnik
SN - 0933-5137
IS - 6
ER -
ID: 35818331