Effect of low temperature annealing on the wear properties of NITINOL

Autor:	P. G. Mukunda, Narendra Nath.S, Sriram Mukunda, Mervin A. Herbert
Rok vydání:	2016
Předmět:	Materials science Root canal Metallurgy Abrasive technology industry and agriculture chemistry.chemical_element Shape-memory alloy Microstructure Hardened steel medicine.anatomical_structure chemistry Nickel titanium Vickers hardness test medicine Titanium
Zdroj:	IOP Conference Series: Materials Science and Engineering. 114:012119
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/114/1/012119
Popis:	NiTi shape memory alloy is a wonder material that is a solution looking for problems. The material finds wide biomedical applications like endodontic files for root canal treatment and cardiovascular stents. This material has rendered the surgical procedure simple compared to that with the existing Stainless Steel (SS) or titanium ones. NiTi as an endodontic file would cause less discomfort to the patients in comparison to that with far stiffer SS or titanium ones. Here nearly equi-atomic 50:50 commercial NiTi rods were subjected to low temperature aging at 300 to 450°C. The wear resistance of the as-received and the heat-treated samples was studied using adhesive wear tests on hardened steel counter face. Abrasive wear tests were run against Alumina disc to simulate the working of endodontic drills and files against dental hard and soft tissues. The abrasive wear resistance is expected to be proportional to the Vickers Hardness of the material and is high for the 450°C heat-treated sample. A correlation between the mechanical properties and microstructures of this material is attempted
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7baa1a6c0555e8f2d72994249edb69ae https://doi.org/10.1088/1757-899x/114/1/012119 Zobrazit plný text záznamu