AbstractThe influence of alloy composition on cyclic stress response, cyclic strain resistance, and cyclic fracture behaviour is reported. Three Cu–Pb alloys containing 10, 25, or 40 wt-%Pb were investigated. Alloy composition, i.e. lead content, was observed to have an influence on cyclic stress response, cyclic ductility, and low cycle fatigue life. The cyclic stress response characteristics, fatigue life, and failure process are discussed in the light of the specific roles played by concurrent and mutually interactive influences of plastic strain amplitude, concomitant response stress, and intrinsic microstructural effects.MST/1918