NDLI: Kinetics of Failure Rate Accumulation and TiNi Shape Memory Effect Alloy Fracture Under Mechanical Cycling

Content Provider	Springer Nature Link
Author	Bondarev, A. B. Khusaiv, M. A. Plastilina, G. V. Andreev, V. A.
Copyright Year	2009
Abstract	Wire specimens, d = 0.1 mm, made of Ti-(50.6-50.8)at.%-Ni alloy were exposed to thermo-mechanical treatment (TMT), thus making the samples straight and providing them with high superelasticity (ε$_{se}$). It was established that the most effective method of TMT is annealing with deformation at 500 and 300 °C. The optimum mode of treatment was used in the research of mechanical fatigue of alloys with high superelastic properties. Two stages characterizing the alloy behavior under mechanical cycling were found out: failure accumulation and fracture. It was shown that the duration of the cycles is determined by the value of the preset deformation (σ$_{set}$) in relation to the deformation on the plateau-shaped area. The results of low-cycle fatigue of the alloys under investigation were processed by means of the method of least squares. The equations of prognosis of longetivity at the preset level of deformation are presented.
Starting Page	568
Ending Page	571
Page Count	4
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	19
Issue Number	4
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2009-08-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	heat treating shaping superalloys Engineering Design Quality Control, Reliability, Safety and Risk Tribology, Corrosion and Coatings Materials Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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