Effect of aluminum alloying on the structure and properties of rapidly quenched TiNiCu alloy

Autor:	I. A. Zaletova, A V Shelyakov, S A Eroshenkov, O. N. Sevryukov, N N Sitnikov
Rok vydání:	2021
Předmět:	History Materials science chemistry Aluminium Alloy Metallurgy engineering chemistry.chemical_element engineering.material Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 2056:012042
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/2056/1/012042
Popis:	The efficiency of shape memory alloys for the MEMS technology has been recently demonstrated. Quasibinary intermetallic TiNi-TiCu alloys produced by rapid quenching from liquid phase in the form of thin (about 40 um) ribbons are an attractive material for the fabrication of micro-actuators due to their narrow temperature hysteresis of the shape memory effect (SME) and relatively large recoverable strain. In order to broaden the functionality of SME microdevices, in this work we have alloyed TiNiCu containing 25 at.% copper with aluminum. The results have shown that alloying with 0.6 at.% Al increases the cast characteristics of the composition and favors its amorphization. Upon crystallization by isothermal annealing or electropulse treatment the resultant microstructure and SME properties of the Al containing alloy change but slightly in comparison with the original alloy however there is a significant shift (by more than 15°C) of the SME temperature range toward lower temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3b33b6ba823ba6fe29d9d9fcf3b10f30 https://doi.org/10.1088/1742-6596/2056/1/012042 Zobrazit plný text záznamu