Effect of Ni Concentration on Transformation Pseudoelasticity in Cu–Al–Ni Alloy Single Crystals
نویسندگان
چکیده
منابع مشابه
Experimental Study on the Magnetomechanical Characteristics of Ni-Mn-Ga Ferromagnetic Shape Memory Alloy Single Crystals
Magnetic shape memory properties of Ni-Mn-Ga single crystals were characterized by measurement of stress-induced martensite reorientation under constant magnetic fields. Also magnetic field-induced strain as a function of the applied magnetic field under different constant compressive stress levels has been investigated. All the experiments were performed at room temperature in which the sample...
متن کاملTransformation of Co–Ni–Al single crystals in tension
We present for the first time pseudoelasticity and shape memory results on Co–Ni–Al single crystals in tension. The experimental transformation strains approached 6% in tension in the [115] orientation. Despite the considerable volume change (0.0447), the transformation exhibits remarkable pseudoelasticity and shape memory recoverability in tension. A theoretical treatment is presented to expla...
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The pseudoelastic responses of heat-treated CoNiAl single crystals with [001] and [115] orientations, multicrystals of nominally [123] orientation, and polycrystals are investigated under tension and compression stress states. The highest transformation strains are found under pseudoelasticity for the [001] orientation in tension and compression as 6.2% and 4.1% respectively. Experiments reveal...
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The effects of crystallographic orientation and temperature on pseudoelasticity and recoverable strain levels under constant stress are revealed for the Co-31at.%Ni-27at.%Al alloy single crystals under compression. The single crystals demonstrate a perfect pseudoelasticity at temperatures as high as 170 °C, recoverable transformation strains of 4% along the [100] orientation and 2.5% along the ...
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ژورنال
عنوان ژورنال: Materials Transactions, JIM
سال: 1990
ISSN: 0916-1821,2432-471X
DOI: 10.2320/matertrans1989.31.848