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Volume 5, Issue 5 Res. Rev. J Mat. Sci. 2017
ISSN: 2321-6212 Advanced Materials 2017
September 07-08, 2017
September 07-08, 2017 | Edinburgh, Scotland
Advanced materials & Processing
11th International Conference on
Materials selection for modern and mobile medical constructions
Agata Sotniczuk, Donata Kuczynska, Piotr Kwasniak and Halina Garbacz
Warsaw University of Technology, Poland
Owing to the constant increasing of the number of people suffer hearing disorders, the demand for modern medical devices
like mobile audiometric cabins is continues to grow. The opportunity to fold and relocate the cabin would allowed to examine
greater number of population in distant places by the same equipment. Nevertheless the necessity of cabin mobility imposes special
requirements on its construction The main requirement for constructive materials in case of mobile audiometric cabins is the high
mechanical strength related to density which allowed for its mass reduction. Other properties like the high fatigue resistance, the
great joining ability and high corrosion resistance in working conditions are also essential. Both titanium and aluminium alloys fulfil
this requirements. Thus, the aluminium alloys, which are less expensive and possess better weldability, are the first choice for the
mobile medical constructions. The precipitation strengthened 6xxx aluminium alloys have both satisfactory mechanical strength and
weldability. The broad availability of semi-finished products made from 6xxx alloys is also a great advantage. Although mechanical
properties of semi-products like yield or tensile strength are given in normalized worksheets, manufacturers data do not enclosed
their anisotropy. The differences of mechanical properties on particular directions and on the elements thickness are connected with
crystallographic and morphologic texture. In this study the homogeneity of the microstructure, texture and mechanical properties
anisotropy of selected aluminiumprofiles with different shapes was investigated. For this purpose following tests were made: phase and
texture analysis by XRD, microstructure analysis on different sections (OIM and SEM+EDS), static tensile tests and microhardness
measurements. Obtained results are important due to its great influence on the construction mechanics. The elements of supporting
structures work in the conditions of compression, shearing or bending. The anisotropy of its mechanical properties can lead to the
contrary properties for different load conditions. There are no doubts that such results have to be taken into consideration during
designing of the audiometric cabins construction.
Biography
Agata Sotniczuk is currently a PhD student at Faculty of Materials Science and Engineering, Warsaw University of Technology. In her work she focused on corrosion
behavior of nanocrystalline metals, especially titanium and aluminium alloys. One of her main interest is the influence of microstructural defects, like dislocations
and grain boundaries on the passive layer formation is solutions simulating body fluids. This subject was also a topic of her Master Thesis which was awarded
the first price from the Polish Corrosion Society. Her main investigation tools are electrochemical tests (impedance and potentiodynamic) together with electron
microscopes (SEM, TEM) for microstructure characterization.
Agata Sotniczuk et al., Res. Rev. J Mat. Sci. 2017, 5:5
DOI: 10.4172/2321-6212-C1-006