Creep of Sn-9Zn as measured by a bending test method

Abstract

A bending creep setup was introduced and its feasibility to evaluate creep behavior of materials was experimentally verified on pure Sn. Thereby, the creep of eutectic Sn-9Zn was studied. It was identified that high and low stress regimes exist in the creep of Sn-9Zn, and in both stress regimes, the data obtained well fit the modified equation of Norton power law. Parameters n and Q in the modified Norton equation obtained are very closed to those reported by other researchers by means of conventional tensile creep tests. The mechanisms governing the creep deformation of Sn-9Zn in both stress regimes were also discussed.

Keywords

creep / Sn-9Zn / lead-free solders

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