Estimation of the mechanical behavior of Ni-base alloys at high temperatures using Small punch tests

The COMPASsCO2 project will investigate materials for the extreme environments of heat exchanger (temperature, pressure, etc.) from commercial alloys such as advanced Ni-Superalloys as well as novel materials. Small punch (SP) testing is a very successful screening method to estimate mechanical properties of metallic. Yield strength and Ultimate tensile strength values have been evaluated successfully from the SP tests for the commercial materials for the design of the heat exchanger. The obtained results correlated very well with the results of tensile validation tests. The testing method can be used for supporting the development of the novel materials to obtain the requested tensile properties, when the available material is not enough for conventional tensile specimen production.