A Review of Additively Manufactured Iron-Based Shape Memory Alloys

Iron-based shape memory alloys (Fe-SMAs), traditionally manufactured, are favored in engineering applications owing to their cost-effectiveness and ease of fabrication. However, the conventional manufacturing process of Fe-SMAs is time-consuming and raw-material-wasting. In contrast, additive manufa...

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Bibliographic Details
Published in:Crystals (Basel) 2024-09, Vol.14 (9), p.773
Main Authors: Sun, Qian, Tan, Xiaojun, Ding, Mingjun, Cao, Bo, Iwamoto, Takeshi
Format: Article
Language:English
Subjects:
3D printing
Additive manufacturing
Cost effectiveness
Cost reduction
Ferrous alloys
Iron
Iron industry
iron-based shape memory alloy
Lasers
Manufacturing
Material properties
Mechanical properties
Metal fatigue
Microstructure
Molding (process)
Parameter identification
Printing
Raw materials
Seismic engineering
Shape effects
Shape memory alloys
shape memory behavior
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Summary:Iron-based shape memory alloys (Fe-SMAs), traditionally manufactured, are favored in engineering applications owing to their cost-effectiveness and ease of fabrication. However, the conventional manufacturing process of Fe-SMAs is time-consuming and raw-material-wasting. In contrast, additive manufacturing (AM) technology offers a streamlined approach to the integral molding of materials, significantly reducing raw material usage and fabrication time. Despite its potential, research on AMed Fe-SMAs remains in its early stages. This review provides updated information on current AM technologies utilized for Fe-SMAs and their applications. It provides an in-depth discussion on how printing parameters, defects, and post-printing microstructure control affect the mechanical properties and shape memory effect (SME) of AMed Fe-SMAs. Furthermore, this review identifies existing challenges in the AMed Fe-SMA approach and proposes future research directions, highlighting potential areas for development. The insights presented aim to guide improvements in the material properties of AMed Fe-SMAs by optimizing printing parameters and enhancing the SME through microstructure adjustment.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst14090773