A Review on NiTiCu Shape Memory Alloys: Manufacturing and Characterizations

Abstract

ARTICLE INFOShape memory alloys have the thermoelastic phase transformation, known as shape memory characteristics, which make them be used in wide technological applications compared to other alloys. Ni-Ti based SMAs compared to the other families have more applications especially in the biomedical field since they have high biocompatibility, high strain recovery, flexibility, and antirust. In this work, the studies conducted for NiTiCu SMAs were reviewed. Additionally, different manufacturing techniques used by researchers have been explained. Different characteristics of the alloys have been clarified and compared with some other families.

Processing of shape memory alloys research, applications and opportunities: a review

“…Some porous NiTi with another type of porosities have been subjected to anneal to investigate the thermal properties and phase changes. DSC is applied in calculating the heat energy needed for a material to change beneath a shift of phases [85]. The (figure 9) shows the DSC curves of NiTi alloys with different porosities after annealing at 450 °C.…”

Razvoj legura s prisjetljivošću oblika na bazi bakra u okviru znanstveno-istraživačkih projekata na Metalurškom fakultetu Sveučilišta u Zagrebu

“…"melt-spinning" tehnika), lijevanje u kokile (metalne kalupe), kontinuirano lijevanje, metalurgiju praha, lasersko taljenje itd. [10][11][12][13][14][15][16][17][18][19] Ovisno o kemijskom sastavu legura, toplinskoj obradi nakon austenitizacije s hlađenjem u vodi može se dobiti martenzitna mikrostruktura koja je preduvjet za efekt prisjetljivosti oblika.…”

The development of Biomaterials in Medical Applications: A review

“…The most widely implemented bio-inert metals are surgical stainless steel (316L), cobalt-chromium (CoCr) alloys, and titanium (Ti) alloys (2). Due to their superior mechanical, fatigue, wear, and corrosion resistance, Ti-6Al-4 V alloy [78], 316L stainless-steel (SS) [79], Co-Cr-Mo [80], and nickel-titanium shape memory alloy (NiTi-SMA) [1,[81][82][83][84][85][86][87][88][89][90][91][92] are frequently chosen over other biomaterials like polymers and ceramics…”