Ivo Kuběna

TL;DR: In this article, the early microstructural changes leading to fatigue crack initiation in cyclically strained polycrystals (nickel, 316L steel) were investigated in detail using electron channeling contrast imaging (ECCI) technique (concurrently in the FIB crosssection and on the specimen surface) and simultaneously with the surface relief topography using transmission electron microscopy (TEM) of thin surface foils prepared by in situ lift-out technique.

TL;DR: In this article, the internal dislocation structures of the material at room and at elevated temperature were studied using transmission electron microscopy and surface observations were used to identify the cyclic slip localization and to discuss fatigue softening/hardening behavior and the temperature dependence of the fatigue life.

TL;DR: In this paper, the profiles of persistent slip markings produced by uniaxial and baoxial cyclic straining in four different polycrystalline materials with f.c. structure were investigated using focused ion beam (FIB) cutting and TEM observation of oriented surface foils.

TL;DR: In this work, a PEO coating formed on titanium is examined using high resolution X-ray computed tomography (X-ray CT) and the technique is shown to be capable of resolving pores with volumes of at least 6 μm(3).

TL;DR: In this paper, a multi-phase Ti-6Al-4V prepared by electron beam melting and thermal post treatments has been shown to exhibit increased strength and ductility over standard wrought or hot isostatic pressed Ti alloys.