Institute of Physics of Materials AS CR, v. v. i. > Projects > Creep deformation of new grade UNS S31035 austenitic steel including transient effects

Creep deformation of new grade UNS S31035 austenitic steel including transient effects

InvestigatorRNDr. Luboš Kloc, CSc.
Number of Project15-21394S
AgencyGrantová agentura České republiky
Duration2014-12-31 - 2017-12-30

Anotace
New austenitic steels have been developed for prospective A-USC thermal power plants with high efficiency. The most important degradation
process of the material is thermal fatigue. Small creep deformation play important role in the process, relaxing thermally generated stresses.
FEM modeling is convenient for evaluation of thermal fatigue in real parts of industrial equipment, but realistic constitutional equations
describing creep behavior including transient effects are missing, as well as experimental data. The project intends to collect small creep
strain data for the prospective UNS S31035 creep resistant steel and create constitutive equations including transient effects with more
general validity.

2019

Kloc L., Sklenička V., Dymáček P.: Transient Effects in Creep of Sanicro 25 Austenitic Steel and Their Modelling. Metals 9 (2019) 245


2018

Dymáček P., Jarý M., Dobeš F., Kloc L.: Tensile and Creep Testing of Sanicro 25 Using Miniature Specimens. Materials 11 (2018) 142

Kloc L., Dymáček P., Sklenička V.: High temperature creep of Sanicro 25 austenitic steel at low stresses. Mater. Sci. Eng. A 722 (2018) 88-92

Kloc L., Sklenička V., Dymáček P., Plešek J.: New creep constitutive equation for finite element modelling including transient effects. Mech. Mater. 119 (2018) 49-55


2017

Dymáček P., Dobeš F., Kloc L.: Small Punch Testing of Sanicro 25 Steel and its Correlation with Uniaxial Tests. Key Engineering Materials. Key Eng. Mater. 734 (2017) 70-76

Dymáček P., Dobeš F., Kloc L.: Determination of Mechanical Properties of Metallic Materials from Very Small Volumes by Means of Small Punch Test. Key Eng. Mater. 741 (2017) 116-121