Correlation of structure and properties of melt spun PbSn30Sb7Cu quaternary alloys

Using x‐ray diffractometry, double bridge method and dynamic resonance technique structure, electrical resistivity, elastic modulus, internal friction and thermal diffusivity of Pb_63‐xSn₃₀Sb₇Cu_x x=0 or x≤2.5] quaternary melt spun alloys have been investigated. Adding Cu to PbSn₃₀Sb₇ decreases electrical resistivity, elastic modulus and internal friction. The PbSn₃₀Sb₇Cu₁ melt spun alloy has better properties as bearing alloy, such as low electrical resistivity, high elastic modulus and adequate internal friction, compared with the Pb₈₈Sn₁₀Cu₂ alloy used for automotive applications (FIAT Normalizzazione). That means, it has good properties as lead free (non‐toxic) bearing alloy. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)