Thermal diffusivity of Ni–Ti SMAs
作者： C. Zanotti , P. Giuliani , G. Riva , A. Tuissi , A. Chrysanthou
DOI: 10.1016/J.JALLCOM.2008.05.040
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摘要: Abstract In this paper thermal diffusivity dependence on temperature of NiTi SMAs alloy in the range from 300 K up to 1500 K is reported and experimental–numerical approach adopted for scope described. The experimental work based capability heat sample by means laser radiation record history at different positions afterwards possibility reproduce curves numerical computations. A variety heating rates ranging 2 K/s 100 K/s maximum values (600–1500 K) top sample, were used carry out experiments featured transients. code, 1D unsteady diffusion equation, was observed be very good agreement with results value that obtained showed drastic changes during phase transition occurred martensitic transformation.
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