Acadlore takes over the publication of IJCMEM from 2025 Vol. 13, No. 3. The preceding volumes were published under a CC BY 4.0 license by the previous owner, and displayed here as agreed between Acadlore and the previous owner. ✯ : This issue/volume is not published by Acadlore.
Open AccessEffect of Silicon Addition on the Characteristics of Nitinol Shape Memory Alloy
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The effects of adding silicon to shape memory alloy (SMA) (Nitinol) were investigated in the current investigation. Most people think that silicon-based SMAs could be a cheaper alternative to NiTi SMA because they have good shape memory properties, good damping capacity, and other useful properties. The alloys were mechanically tested for Vickers microhardness, compression force, shape memory effect (strain recovery), density, and porosity to estimate the Si effect. Powder metallurgy was used to make the alloys. The base alloy (Nitinol) was prepared after sintering treatment at a temperature of 850°C for a period of 6hr. In addition, alloys were prepared from them to find out the effect of adding silicon. These alloys included the base alloy to which silicon was added in proportions of 0%, 3%, 6%, and 9% wt. of Si as their weight ratios. The results showed that increasing the percentage of silicon resulted in improved mechanical properties while 9.0 wt.% Si showed better shape memory properties.
