[Kovove materialy - Metallic materials]
    Fri - April 12, 2024 - 23:35 No. of hits : 1740515 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 61 (2023), Issue 6

Effect of 5.31Ti (at.%) content used as ternary in quaternary Cu-rich high-temperature shape memory alloy cast via arc melting
GUNES BASBAG, OKTAY KARADUMAN, CANAN AKSU CANBAY, ISKENDER OZKUL, MUSTAFA BOYRAZLI
vol. 61 (2023), no. 6, pp. 351 - 357
DOI: 10.31577/km.2023.6.351

Abstract
In this work, the new quaternary CuAlTiMg high-temperature shape memory alloy (HTSMA) with an unprecedented composition and with extended solubility of Ti was produced by the arc melting method. The thermal shape memory effect characterization tests were done by performing a series of differential calorimetric (DSC and DTA) measurements. The obtained thermograms of the alloy displayed the martensitic phase transformation peaks. The forward (martensite to austenite) phase transformation was found to occur at above 350 °C, which qualifies the produced alloy as an HTSMA. The microstructural XRD measurement was performed to reveal the atomic planes of martensite structures formed in the alloy, which constitute the shape memory effect property of the fabricated alloy. The alloy surface was monitored by optical microscopy image taken at room temperature, and finely dispersed Ti-rich X-phases were observed.

Key words
CuAlTiMg high-temperature shape memory alloy (HTSMA), shape memory effect, martensitic transformation, differential scanning calorimetry (DSC), differential thermal analysis (DTA), arc melting

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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