Microstructure of cryogenically treated martensitic shape memory nickel-titanium alloy
نویسندگان
چکیده
منابع مشابه
Nickel Titanium and Nickel Titanium Hafnium Shape Memory Alloy thin films
Shape Memory Alloys (SMAs) coatings of NiTi and NiTiHf have been deposited onto Si substrates using pulse DC sputtering. Coatings of NiTi with compositions containing 45 to 65 at% Ti have been fabricated by co-sputtering NiTi with Ti. NiTiHf coatings with Hf compositions ranging from 2 to 30 at% Hf have been fabricated by co-sputtering NiTi with Hf. XRD results reveal the as-deposited coatings ...
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OBJECTIVES The aim of this study is to investigate the role of dry cryogenic treatment (CT) temperature and time on the Vickers hardness and wear resistance of new martensitic shape memory (SM) nickel-titanium (NiTi) alloy. The null hypothesis tested was that there is no difference in Vickers hardness and wear resistance between SM NiTi alloys following CT under two soaking temperatures and tim...
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This paper describes an experimental study of stress-induced martensitic phase transformation in the SMA Nickel-Titanium. The rich local thermo-mechanical interactions that underlie transformation are examined using three-dimensional Digital Image Correlation (strain fields) and infrared imaging (thermal fields). We quantify the complex local interactions between released/absorbed latent heat a...
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This chapter describes a theory of martensitic microstructure. The theory explains why martensites form microstructure and describes how this microstructure depends, often delicately, on the crystalline symmetry and the lattice parameters. The shape-memory e ect is analyzed with this theory and it is shown that only very special materials { those that satisfy signi cant restrictons on their sym...
متن کاملMechanical properties, bioactivity and corrosion resistance of oxygen and sodium plasma treated nickel titanium shape memory alloy
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...
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ژورنال
عنوان ژورنال: Journal of Conservative Dentistry
سال: 2015
ISSN: 0972-0707
DOI: 10.4103/0972-0707.159727