Creep and creep recovery under stress-controlled subloop loading in TiNi shape memory alloy

• Autorzy: Takeda K. , Matsui R. , Tobushi H. , Pieczyska E. A.
• Konferencja: Solid Mechanics Conference (38 ; 27-31.08.2012 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

If a shape memory alloy (SMA) is subjected to the subloop loading under the stress-controlled condition, creep and creep recovery can appear based on the martensitic transformation. In the design of SMA elements, these deformation properties are important since the deflection of SMA elements can change under constant load. The conditions for the progress of the martensitic transformation are discussed based on the kinetics of the martensitic transformation for the SMA. The creep deformation properties are investigated experimentally for TiNi SMA. The creep strain rate increases in proportion to the martensitic transformation strain; the creep recovery strain rate increases in proportion to the reverse transformation strain.

Słowa kluczowe

EN

shape memory alloy; superelasticity; subloop; transformation band; creep; creep recovery; strain rate; local deformation

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2013
• Tom: Vol. 65, nr 5
• Strony: 429--444
• Opis fizyczny: Bibliogr. 18 poz., rys. kolor., wykr.

Twórcy

autor

Takeda K.

• Department of Mechanical Engineering Aichi Institute of Technology 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan

autor

Matsui R.

• Department of Mechanical Engineering Aichi Institute of Technology 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan

autor

Tobushi H.

• Department of Mechanical Engineering Aichi Institute of Technology 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan

autor

Pieczyska E. A.

• Institute of Fundamental Technological Research Polish Academy of Sciences Pawinskiego 5B 02-106 Warsaw, Poland

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