Creep strength boosted by a high-density of stable nanoprecipitates in high-chromium steels

Abstract

There is a need worldwide to develop materials for advanced power plants with steam temperatures of 700 ºC and above that will achieve long-term creep-rupture strength and low CO 2 emissions. The creep resistance of actual 9-12Cr steels is not enough to fulfil the engineering requirements above 600 ºC. In this paper, the authors report their advances in the improvement of creep properties of this type of steels by the