CANCELLED TALK - Effect of Solution-Treatment Temperatures on Grain Size and Mechanical Properties of CuCrZr Alloy

The precipitation hardened commercial CuCrZr (UNS number C18150) alloy is used for applications in space, nuclear, automotive, electrical, and commercial industries. There is very meagre systematic data on this material on the effect of solution annealing temperatures on grain size and resultant room temperature tensile properties on hot-forged material. Solution annealing was carried out over five different temperatures ranging from 927°C to 1038°C to observe the difference in the grain size between the as-forged and after solution annealing. Grain size was measured in the as-forged and post solution treated conditions. The solution treated coupons were subjected to a standard aging treatment. Room temperature tensile properties were evaluated in both the solution annealed and solution annealed and aged conditions. It was determined that within the range of the grain sizes studied, grain size had low impact on the room temperature tensile properties including the strain rate sensitivity index.