A finite element analysis of tubular, diamond-shaped stent grafts under representative cyclic loading conditions for abdominal aortic aneurysm (AAA) repair is presented. Commercial software was employed to study the mechanical behavior and fatigue performance of different materials found in commercially available stent-graft systems. Specifically, the effects of crimping, deployment, and cyclic...

The shape memory effect (SME) response of a deformation-processed NiTiNb shape memory alloy is benchmarked against the response of a cast alloy. The insoluble Nb element ternary addition is known to widen the hysteresis with respect to the binary NiTi alloy. Cast microstructures naturally consist of a cellular arrangement of characteristic eutectic microconstituents surrounding primary matrix r...

Nickel titanium (NiTi) shape memory alloy is a unique material displaying the shape memory effect and superelastic property making it attractive to the orthopedic field. However, with its high nickel content of∼50%, there is concern on health and safety when this material is implanted inside the human body for a prolonged period of time as toxic nickel ions may leach into the body due to corros...

In recent years, thanks to the rapid advancement of science and technology a better understanding anatomy root canal system, many new endodontic instruments materials have been introduced with desire minimize complications in process preparing canal, help cleaning shaping complete well. It is noteworthy that emergence files made Nickel-Titanium alloy (NiTi files), which, according recommendatio...

NiTi-based shape memory alloys and the Ti2AlNb alloy have gained increasing importance in aerospace field. The joining of these two materials can further increment usage relevant engineering expand their potential applications. However, when to Ti-based alloys, formation brittle Ti-rich intermetallic compounds often occurs, significantly limiting functionality use. Dissimilar joints between a N...