Abstract
The present study was carried out to investigate the effects of Te and As addition on the microstructure and mechanical properties of a Pb-0.10%Sn alloy.
The results are summarized as follows:
(1) The tensile strength after extrusion and aging at room temperature and 373 K increases with increasing As content up to 0.05%As.
(2) The increasing tendency of fatigue resistance at 50 Hz is more remarkable in the addition of As than of Te.
(3) The hardness change during aging at 333-473 K for Pb-Sn-Te-As alloys is mainly dependent on the As content.
(4) A characteristic cell structure due to constitutional undercooling during solidification at casting is caused by the addition of Te, and the structure is considerably stable under heating after casting.
