THERMOELASTIC MARTENSITIC TRANSFORMATION IN CuAlNi SHAPE MEMORY ALLOYS.

被引:0
|
作者
Billy, Jozef [1 ]
Karel, Vojtech [1 ]
Longauer, Svatoboj [1 ]
Janak, Gabriel [1 ]
机构
[1] VST Univ, Kosice, Czech, VST Univ, Kosice, Czech
关键词
COPPER METALLOGRAPHY - Martensite;
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摘要
The aim of this work was to develop a CuAlNi alloy with a suitable chemical composition in relation to the shape memory effect and test the main structural representations of the thermoelastic martensitic transformation. Homogenization of these alloys is accompanied by the formation of the Al-rich gamma //2 phase in the structure. The alloys are susceptible to intercrystalline cracking at the beta grain boundaries in multiple martensitic transformation. Grain refining reduces the susceptibility to cracking but does not impair the memory effect.
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页码:285 / 287
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