Shape memory alloys in modern engineering: progress, problems, and prospects
Abstract
Modern industrial innovation demands smart materials capable of fulfilling multifaceted objectives. Epitomizing mechanical adaptability, shape memory alloys address the escalating need for high-performance materials in today's technological sphere. These unique materials with high actuation strain, energy density and biocompatibility have remained conspicuous in various fields for many years. However, despite their transformative potential, SMA applications face persistent challenges that hinder their full industrial adoption. Recent advancements have dramatically expanded SMA capabilities, yet these developments remain fragmented across disparate disciplines. Hence, this review outlines modern trends in SMA technologies to identify performance gaps and establish a roadmap for future applications. A concise exposition on the intrinsic properties of SMAs that empowers them with idiosyncratic abilities has been illustrated. Subsequently, the article discusses the technological frontiers of SMAs in diverse fields spotlighting the novel designs. The performance and applicability of SMAs are intrinsically governed by their processing methodologies. Industrial adoption hinges not just on material potential, but on scalable processing methods that balance cost and performance. This further delves into the intricacies of manufacturing and machining techniques that have facilitated precision and optimization of these materials. The study aspires to serve as an exhaustive compendium…
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