Ni50Ti50 Shape Memory Research Paper

Describes an experimental study of Ni50Ti50 shape memory alloy used for biomedical applications.
# 152257 | 877 words | 14 sources | MLA | 2013
Published on Jan 20, 2013 in Chemistry (General)

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This paper describes the development and characterization of Ni50Ti50 shape memory alloy to interpret for biomedical applications. The paper examines how differential scanning calorimetric studies has proved that the alloy has transformation temperatures below room temperature which is characteristic property of shape memory alloys. The paper futher looks at how x-ray diffractometry results have revealed FCC as dominant phase and how microstructures have eqiaxed grains of austenite and very fine laths of martensite.

Experimental Work
Results and Discussions
Differential scanning calorimeter (DSC)
X-ray Diffractrometry (XRD)
Microscopic Study of Ni50Ti50

From the Paper:

"Metal and alloys are characterized by physical qualities such as tensile strength, malleability and conductivity but in case of shape memory alloys, we can add anthropomorphic qualities of memory and trainability [1]. Among many shape memory alloys NiTi based alloys are most popular because they have superior properties in shape memory effect and pseudoelasticity [2,3]. These important properties originates from a spontaneous lattice distorting transitions called martensitic transition [4]. They have a fast and accurate shape memory response to temperature change and are widely used in both medical and industrial applications, such as orthodontic product, medical implants, stents, controller and sensors, and in addition also exhibit excellent performance of mechanical damping, thermal expansion and electrical resistivity variation due to their thermoelastic martensitic transformation [5,6,7,8]. NiTi present two well defined crystallographic phases i.e austenite and martensite. Martensite is induced by either stress or temperature and it is easily deformed reaching large strains (upto 8%) [9]. "

Sample of Sources Used:

  • Shape memory alloy metallurgical solution looking for a problem, Metallurgica, vol 51, no 1, jan 1984, pp 26-29
  • C.M Jackson, H.J Wanger, Rj wasilewski, NASA report sp-5110, Washington DC 1972, pp 23-55
  • S.Miyazaki, T.lmai, Y.igo, K.Ostuka, Metall. Trans.A17 (1989)115
  • K.Otsuka and X.Ren prog Mater.Sci. 50,511, 2005
  • S.Miyazaki, Y.igo, K.Otsuka, acta metal, 34 (1986) 2045.

Cite this Research Paper:

APA Format

Ni50Ti50 Shape Memory (2013, January 20) Retrieved August 23, 2019, from

MLA Format

"Ni50Ti50 Shape Memory" 20 January 2013. Web. 23 August. 2019. <>