الفهرس 
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Abstract
In this work, we present a new quaternary Sn90-2x–Sb10Cu2X2 (X=Pb, Ag, Cd, Se or Zn) bearing alloy. To get this aim we do that:- Rapid solidification is achieved by melting spinning, melt spinning technique was used to Produce ribbons from tin- antimony- copper based alloy with adding 2 wt% of different alloying elements (lead or silver or cadmium or selenium or zinc) then study and analyze cadmium or selenium or zinc) then study and analyze structure, electrical resistivity, elastic modulus, Vickers hardness number, internal friction and creep behavior of these alloys using different experimental techniques (x-ray diffraction to study structure, double bridge method to measure electrical resistivity, dynamic resonance technique to measure elastic modulus, internal friction and Vickers microhardness tester, FM-7, to measure Vickers hardness number) . From our work it’s concluded that: 1-The physical properties, (such as electrical resistivity, elastic modulus, and internal friction and Vickers hardness number) are affected by changing on ß-Sn matrix microstructure such as SnSb & Ag3Sn & Cu3Sn intermetallic compounds, dissolved (Pb, Cd, Ag, Se and Zn) atoms imbedded in Sn matrix and phases crystal size. 2-The Sn86Sb10Cu2Zn2 quaternary alloy has better properties such as high values of stress exponent (wear resistance), Vickers hardness number and adequate values of elastic modulus and internal friction with low value of temperature coefficient of resistivity for industrial applications and eco-friendly.