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- W2904701872 abstract "Abstract In recent days it is being found that a number of various metals and alloys are used in medical field which help to cure many disabilities and diseases in human beings. But in most of the cases human body will not accept these materials and will lead to cause many adverse effects when used in human body. It is required that any material before using it in human body it has to be investigated for its biocompatibility. In the present work the biocompatibility of shape memory alloy (SMA) is being investigated in detail.The present study is to determine biocompatibility of Cu-Al-Be-Mn SMAs with varying percentage composition of 10-14 wt. % of Al, 0.3-0.6 wt. % of Be, 0.1-0.4 wt.% of Mn and remaining will be copper were prepared through ingot metallurgy under controlled atmosphere in an induction furnace. The alloys were homogenized at 900°C for about 90 minutes and hot rolling is done at 900°C. The rolled specimens were betatized for about 30 minutes at 900°C and then step quenching in hot water (100°C) finally quenched in cold water. The prepared samples were machined to 10 mm x 10mm x 1mm (length x breadth x thickness) and subjected to corrosion test in both fresh water and Hank’s solution. Corrosion is an electrochemical reaction that takes place b/n fluid and material, occasionally it will be metal and its environment, which creates a distraction for its materials and properties. If the percentage of beryllium is more then the corrosion resistance is high. It was observed that there is no or negligible pitting corrosion in fresh water and a considerable amount of pitting corrosion in Hank’s solution. Hank’s solution is a simulated body fluid (Zheng at. Al. 2009).The samples were tested for shape memory effect, EDAX for microstructure before and after the corrosion test. The alloy samples were then tested for antibacterial assay to determine biocompatibility. The bacteria used here for biocompatibility are Staphylococcus Aureus and Escherichia Coli. The results obtained exhibits good biocompatibility so that it can be used in invitro applications." @default.
- W2904701872 created "2018-12-22" @default.
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- W2904701872 date "2018-01-01" @default.
- W2904701872 modified "2023-09-25" @default.
- W2904701872 title "Evaluation of Biocompatibility of Cu-Al-Be-Mn Quaternary Shape Memory Alloy" @default.
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- W2904701872 doi "https://doi.org/10.1016/j.matpr.2018.10.278" @default.
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