Research output: Contribution to journal › Article › peer-review
Strain variation during the isothermal martensitic transformation in the Ni51Ti49 shape memory alloy. / Ivanov, Aleksei ; Belyaev, Sergey; Resnina, Natalia; Andreev, Vladimir.
In: Sensors and Actuators, A: Physical, Vol. 297, 111543, 01.10.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Strain variation during the isothermal martensitic transformation in the Ni51Ti49 shape memory alloy
AU - Ivanov, Aleksei
AU - Belyaev, Sergey
AU - Resnina, Natalia
AU - Andreev, Vladimir
PY - 2019/10/1
Y1 - 2019/10/1
N2 - The strain variation under constant tensile stress of 50 MPa during isothermal holding of the quenched Ni51Ti49 shape memory alloy is reported for the first time. A maximum strain of 0.4% is observed during holding at a temperature of −37 °C, which is 6 °C less than the start temperature of the martensitic transformation (Ms σ). A shift in the holding temperature above or below the Ms σ temperature decreases the isothermal strain. It is shown that the strain that appears during isothermal holding completely recovers on subsequent heating. This allows one to conclude that the strain variation on holding is caused by the martensitic transformation that occurs under isothermal conditions.
AB - The strain variation under constant tensile stress of 50 MPa during isothermal holding of the quenched Ni51Ti49 shape memory alloy is reported for the first time. A maximum strain of 0.4% is observed during holding at a temperature of −37 °C, which is 6 °C less than the start temperature of the martensitic transformation (Ms σ). A shift in the holding temperature above or below the Ms σ temperature decreases the isothermal strain. It is shown that the strain that appears during isothermal holding completely recovers on subsequent heating. This allows one to conclude that the strain variation on holding is caused by the martensitic transformation that occurs under isothermal conditions.
KW - Isothermal martensitic transformation
KW - Martensitic phase transformation
KW - Shape memory alloys (SMA)
KW - Strain variation
KW - B2
UR - http://www.scopus.com/inward/record.url?scp=85070710195&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2019.111543
DO - 10.1016/j.sna.2019.111543
M3 - Article
AN - SCOPUS:85070710195
VL - 297
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
SN - 0924-4247
M1 - 111543
ER -
ID: 45307664