Institute of Physics of Materials AS CR, v. v. i. > Projects > The damage evolution in ultrafine-grained metals and alloys under fatigue and creep loading

The damage evolution in ultrafine-grained metals and alloys under fatigue and creep loading

InvestigatorIng. Jiří Dvořák, Ph.D.
Number of Project20-14450J
AgencyGrantová agentura České republiky
Duration2020-01-01 - 2022-12-31

Anotace
SPD techniques are attractive processing methods of materials due to attaining of unusual physical and mechanical properties. The objective of the project is detailed investigation of behaviour and properties of selected metals and their alloys processed by different techniques of severe plastic deformation (SPD) in term of microstructure stability and mechanical properties at room and elevated temperatures. Complementary creep and fatigue tests will be conducted to better understanding of each operating damage process and its individual influence on the creep and fatigue behaviour. The proposed project is initiated to identify and rejuvenate defects that could limit the life of loaded materials under different modes of loading.


2021

Sklenička V., Dvořák J., Král P., Betekhtin V., Kadomtsev A., Narykova M., Dobatkin S., Kuchařová K., Kvapilová M.: Influence of a prior pressurization treatment on creep behaviour of an ultrafine-grained Zr-2.5%Nb alloy. Mater. Sci. Eng. A 820 (2021) 141570

Dvořák J., Kadomtsev A., Betekhtin V., Sklenička V., Král P., Kvapilová M.: Creep behaviour of ultrafine-grained CP titanium processed by multipass rolling. IOP Conf. Ser.: Mater. Sci. Eng. 1178 (2021) 012013