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چکیده
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The work aimed to develop a new biodegradable alloy, ZK60, with the potential to revolutionize the field of biomedical engineering by replacing the implants currently in use. The first stage of the work was to produce samples of the ZK60 alloy and its modified variants ZK60+xAg/Mn (x=0-1mass%) by casting technology to determine the chemical composition that would guarantee products with an optimal set of functional properties. A ZK60 alloy was melted in an electrical furnace at 700°C and then alloyed with different amounts of pure Mn and Ag. The prepared cylinders were subject to thermal-derivative analysis using the UMSA device. After data smoothing, three distinct phases were identified in the base alloy: α(Mg), MgZn and Mg2Zn3. The addition of Mn and Ag causes undetected MgZn phase formation, discernible at concentrations 0.5 and 1mass%. The phase formation sequence was α(Mg), MgZn, followed by Mg2Zn3. Mn and Ag additions led to a decrease in temperature solidification. Significantly, the addition of Mn and Ag resulted in a marked increase in Vickers hardness, reaching values of 82 and 77, and an increase in UCS to 224 and 277 MPa, respectively.
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