Institute of Physics of Materials AS CR, v. v. i. > Projects > Z-phase strengthened steels for ultra-supercritical power plants

Z-phase strengthened steels for ultra-supercritical power plants

Co-investigatorRNDr. Jiří Svoboda, CSc., DSc.
Number of ProjectFP7-309916-2
AgencyEuropean Commission, FP7
Duration2013-01-31 - 2016-01-30

Anotace
Chromium steels strengthened by carbides and vanadium nitrides are used for construction of boilers in coal power plants. Any increase of the operation temperature leads to the increase of efficiency of the power plant and thus to the increase of the protection of environment and climate. The project pursuits a new idea to replace the vanadium nitrides by finely dispersed Z-phase, which is more stable, and this enables increasing of the operation temperature of the boiler. Our team deals with the development of thermodynamic models for nucleation, growth and coarsening of precipitates, for creep, and also creep is tested experimentally in welded and non-welded specimens of the developed material.