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A Study on the Shape Memory Characteristic Behaviors of Ti-42.5at%Ni-10at.% Cu Alloys  

Woo, Heung-Sik (Department of Safety Environmental System Engineering, Dongguk University)
Park, Yong-Gyu (Department of Safety Environmental System Engineering, graduate School of Dongguk University)
Publication Information
Journal of the Korean Society of Safety / v.24, no.1, 2009 , pp. 26-30 More about this Journal
Abstract
Shape memory recoverable stress and strain of Ti-42.5at%Ni-10at%Cu alloys were measured by means of constant temperature tensile tests. The alloys' transformation behavior is B2 - B19 by DSC result. The strain by tensile stress were perfectly recovered by heating at any testing conditions but shape memory recoverable stress increased to 66MPa and then slightly decreased. Transformation temperatures from thermal cycling under constant uniaxial applied tensile loads linearly increased by increasing tensile load and their thermal hysteresis are about 110K and their maximum recoverable strain is 6.5% at 100MPa condition.
Keywords
shape memory; solutionized alloy; differential scanning calorimeter(DSC); transformation temperature; austenite; martensite; recoveralbe stress; recoverable strain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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