Systematic Review of Superelastic FeNiCoAlTaB Alloys
HASBI M.Y.$^{1,2}$, EFENDI$^{2}$, and SOFYAN N.$^{1,3}$
$^1$Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, 16424 Depok, Indonesia
$^2$Research Centre for Metallurgy, National Research and Innovation Agency, Tangerang Selatan, 15314 Banten, Indonesia
$^3$Advanced Materials Research Centre, Faculty of Engineering, Universitas Indonesia, 16424 Depok, Indonesia
Received 03.09.2024, final version 28.01.2025
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Abstract
Iron-based shape-memory alloys (Fe-SMAs) have attracted significant attention due to their unique properties and potential applications. Among these alloys, the polycrystalline Fe–Ni–Co–Al–Ta–B (NCATB) alloy stands out as a promising alternative to NiTi-based SMAs owing to its superior superelastic (SE) behaviour. The SE properties of Fe-SMAs are intrinsically linked to the thermoelastic (TE) nature of their martensitic structure. This structure is achieved through a combination of appropriate fabrication processes and thermomechanical treatments (TMTs). These processes facilitate the formation of precipitates and the development of a dominant texture along specific directions and planes. Previous research has demonstrated the remarkable SE capability of the NCATB alloy, achieving a strain value of 13.5% at room temperature. This remarkable achievement was attributed to the cold-rolling fabrication process, which involved an extreme deformation of 98.6%. However, this process resulted in extremely thin sheets (of 0.2 mm thick), posing challenges for practical applications due to the limited size and form factor. To advance the development of NCATB alloys further, a comprehensive review is essential. Such a review will provide a foundational understanding and facilitate future research efforts by summarising the existing data and methodologies. Therefore, this review paper aims to offer an in-depth discussion of the collected research data, organised according to the evolving research methodologies. By compiling and analysing these studies, the review work seeks to highlight the current progress, identify gaps, and suggest potential directions for future research on the NCATB alloy.
Keywords: alloying, Fe–Ni–Co–Al–Ta–B, shape-memory alloy, superelasticity, thermomechanical treatments.
DOI: https://doi.org/10.15407/ufm.26.01.066
Citation: M.Y. Hasbi, Efendi, and N. Sofyan, Systematic Review of Superelastic FeNiCoAlTaB Alloys, Progress in Physics of Metals, 26, No. 1: 64–88 (2025)