Author(s)

Shihab Uddin¹, Md. Abdul Gafur^2*, Suraya Sabrin Soshi³, Mohammad Obaidur Rahman¹

¹Department of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh.
²Pilot Plant and Process Development Centre, Dhaka, Bangladesh.
³Department of Mechanical Engineering, Ahsanullah University of Science and Technology, Tejgaon, Dhaka, Bangladesh.

Although there are many lead-free soldering alloys on the market, none of them have ideal qualities. The researchers are combining binary alloys with a variety of additional materials to create the soldering alloys’ features. The eutectic Sn-9Zn alloy is among them. This paper investigated the mechanical and electrical properties of Sn-9Zn-x (Ag, Cu, Sb); {x = 0.2, 0.4, and 0.6} lead-free solder alloys. The mechanical properties such as elastic modulus, ultimate tensile strength (UTS), yield strength (YS), and ductility were examined at the strain rates in a range from 4.17 10⁻³ s⁻¹ to 208.5 10⁻³ s⁻¹ at room temperature. It is found that increasing the content of the alloying elements and strain rate increases the elastic modulus, ultimate tensile strength, and yield strength while the ductility decreases. The electrical conductivity of the alloys is found to be a little smaller than that of the Sn-9Zn eutectic alloy.

Lead-Free Solder, Strain Rate, Ultimate Tensile Strength, Ductility, Electrical Conductivity

Uddin, S. , Gafur, M. , Soshi, S. and Rahman, M. (2024) Mechanical and Electrical Properties of Some Sn-Zn Based Lead-Free Quinary Alloys. Materials Sciences and Applications, 15, 213-227. doi: 10.4236/msa.2024.157015.