Low-Cycle Fatigue of TiNi Shape Memory Alloy and Formulation of Fatigue Life  

Oleh:

Nakahara, Takafumi ; Shimeno, Yoshirou ; Hashimoto, Takahiro ; Tobushi, Hisaaki

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Engineering Materials and Technology vol. 122 no. 2 (2000), page 186-191.
Topik: fatigue; low - cycle; fatigue; shape memory alloy; formulation of fatigue life

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ87.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

The low - cycle fatigue of a TiNi shape memory alloy was investigated by the rotating-bending fatigue tests in air, in water and in silicone oil : (1) The influence of corrosion fatigue in water does not appear in the region of low - cycle fatigue. (2) The temperature rise measured through an infrared thermograph during the fatigue test in air is four times as large as that measured through a thermocouple. (3) The fatigue life at an elevated temperature in air coincides with the fatigue life at the same elevated temperature in water. (4) The shape memory processing temperature does not affect the fatigue life. (5) The fatigue equation is proposed to describe the fatigue life depending on strain amplitude, temperature and frequency. The fatigue life is estimated well by the proposed equation.

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