Naslov
Thermal Transformation Behavior of the Two-Phase Shape Memory CuZnAl Alloy

Autori
Ćorić, Danko ; Franz, Mladen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Savjetovanje o materijalima, tehnologijama, trenju i trošenju (MATRIB 2003) : zbornik radova = conference proceeding / Grilec, Krešimir - Zagreb : Dublin : Hrvatsko društvo za materijale i tribologiju (HDMT), 2003, 369-378

ISBN
953-7040-01-1

Skup
Savjetovanje o materijalima, tehnologijama, trenju i trošenju

Mjesto i datum
Vela Luka, Hrvatska, 26.06.2003. - 28.06.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CuZnAl alloy ; shape memory ; martensitic reaction ; austenitic reaction ; transformation temperatures

Sažetak
Transformation behavior of the two-phase shape memory CuZnAl alloy has been analyzed in the range of thermally induced martensitic and austenitic transformation. The studied alloy features transformation behavior of a shape memory characteristic. Full reversible transformability of austenitic structure was recorded in all samples treated in the temperature range from 600°C to 670°C. The martensitic transformation occurs by cooling to a sufficiently low temperature, lower or equal to Mf, and austenitic transformation which renews the parent beta-phase in its original form occurs by heating to the temperature equal or higher than Af. Reversible thermally induced transformation is characterized by specific micro-structural transformation flow. The position of the temperature range of the transformational cycle is determined by the betatizational heating within the two-phase alpha/beta-range. Lower temperatures of betatization render the movement of the austenite/martensite-interface more difficult. The lowering of transformation temperatures is related to numerous borders of anti-phase ranges and the change of the zinc content in the austenitic matrix.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA