Mechanical Properties of Fe-Sn Sintered Compacts Admixed Atomized Fe₃Sn Powder

Abstract

Tensile strength and elongation of Fe-Sn system sintered compacts prepared by adding intermetallic compound Fe3Sn (2.7μ) into Fe powders were measured. The results obtained were as follows;
1) Diffusion of Sn into Fe powders was extremely rapid. For example, by sintering at 890°C for 30 minutes Fe-2%Sn compacts pressed at 5t/cm², completely alloyed structures were obtained.
2) Mechanical properties of sintered compacts were distinctively affected by phase structure in the sintering and those which sintered in the field of γ-loop were excellent. Specimens sindered in the α-regions were extremely brittle.
3) Tensile strengthes of compacts sintered in the field of γ-loop exhibited a linear relationship versus Sn-content at every temperature.