1. Effect of tin addition on corrosion resistance and microstructure of Cu-based shape memory alloy
- Author
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Raad Suhail Ahmed Adnan, Muna Khethier Abbass, and Dalia Mohammed Jomaa
- Subjects
010302 applied physics ,Materials science ,Scanning electron microscope ,Alloy ,Metallurgy ,chemistry.chemical_element ,02 engineering and technology ,Shape-memory alloy ,engineering.material ,021001 nanoscience & nanotechnology ,Microstructure ,01 natural sciences ,Corrosion ,Metal ,chemistry ,Casting (metalworking) ,visual_art ,0103 physical sciences ,visual_art.visual_art_medium ,engineering ,0210 nano-technology ,Tin - Abstract
This research investigates the effect of tin addition on corrosion resistance and micro structure of Cu-Al-Ni shape memory alloy with addition three different percentages of Tin (0.3, 1 &3)wt% to the base alloy. These alloys were prepared by casting and pouring in the metallic mold under argon atmosphere, then the prepared ingots were homogenized and machined by wire cutting into a small samples for corrosion test. X-ray diffraction inspection and scanning electron microscope were used for microstructural observations. Corrosion tests were carried out in sea water (3.5 wt% NaCl solution) at three different temperatures (25, 40 and 60) °C. The results showed that the corrosion resistance increased with addition percentage of tin metal and with rising temperature, It was observed that the 3% tin addition gave the best results in corrosion rate with rising temperature upto 60 °C and also in microstructure the same percentage gave a fine grain size Then the 0.3% Tin Addition and Finally the 1% Tin Addition.
- Published
- 2021