Tensile and fatigue-creep properties of a copper-stainless steel laminate

A candidate material for compact ignition magnets was produced by reinforcing a copper alloy with a Fe-18Cr-13Mn-3Ni-0.37N steel. Tests were conducted at 295 and 76 K to characterize the tensile and fatigue-creep behavior of this laminated composite in three roll-bonded conditions. These conditions correspond to a bulk reduction of 40, 50, and 60 percent cold work in the laminate as a whole. A mixing rule was used to predict the tensile behavior of the composite on the basis of the individual tensile properties of copper and stainless steel. Results for predicted and measured properties include the Young modulus, stress-strain behavior, elongation, and yield and ultimate tensile strengths of the laminates