Effect of Irradiation on the Structural and Physical Properties of Binary Eutectic Alloys Using Rapidly Solidified from Melt

摘要

Microstructure, electrical and mechanical properties of melt-spun Bismuth-Lead, bismuth-tin and bismuth-cadmium eutectic alloys have been investigated using X-ray analysis, the double bridge method and dynamic resonance method. The structure and physical properties of this alloy are affected by the preparation method (rapid solidification technique). X-ray diffraction analysis reveals that melt-spun ribbons with a thickness of 60-120 ?m irradiated or unirradiated with the 6MV photon beam, are composed of Pb7Bi3 and Bi phases, and have a single orientation of growth. From the elastic moduli determinations, it is reported that a slight variations of values of Young's modulus with the irradiation effects, because of a very slight disturbance in the structural inhomogeneity. The results show that the irradiated or unirradiated melt-spun ribbons of Bi_(50)-Pb_(50), Bi_(45)- Sn_(55) and Bi_(50)- Cd_(50), have a slightly variations in value is observed, in elastic properties and in resistivity measurement.