The subsurface frictional hardening: a new approach to improve the high-speed wear performance of Ti-29Nb-14Ta-4.5 Zr alloy against Ti-6Al-4V extra-low interstitial
In the present work, the subsurface microstructure evolutions of Ti-29Nb-14Ta-4.5 Zr (TNTZ)
during high speed-sliding wear against Ti-6Al-4V extra-low interstitial has been studied in …
during high speed-sliding wear against Ti-6Al-4V extra-low interstitial has been studied in …
Evolution and thermal stability of the subsurface zone in copper formed in dry and lubricated sliding tests studied by positron annihilation and EBSD techniques
J Dryzek, M Wróbel - Wear, 2021 - Elsevier
The evolution of the subsurface zone formed during the dry sliding in OFHC copper samples
was traced using the positron annihilation technique. As the sliding distance increases the …
was traced using the positron annihilation technique. As the sliding distance increases the …
Remarks on a source contribution in positron lifetime measurements
J Dryzek - Nuclear Instruments and Methods in Physics Research …, 2022 - Elsevier
The process of deconvolution of a positron lifetime spectrum for searching for individual
lifetime components is ill-posed, therefore the obtained values may not be unique. However …
lifetime components is ill-posed, therefore the obtained values may not be unique. However …
Positron annihilation studies of the near-surface regions of niobium before and after wear treatment
J Dryzek, P Horodek - Tribology Letters, 2017 - Springer
The positron annihilation studies of well-annealed niobium samples after dry sliding or
sandblasting are reported. These treatments modify surface and subsurface regions …
sandblasting are reported. These treatments modify surface and subsurface regions …
Positron annihilation studies of subsurface zone created during friction in pure silver
J Dryzek, K Siemek - Tribology Transactions, 2019 - Taylor & Francis
Positron lifetime research has been performed on well-annealed pure silver samples after
dry sliding, compression, and sandblasting processes. These treatments affect the surface …
dry sliding, compression, and sandblasting processes. These treatments affect the surface …
Cyclic softening in annealed Zircaloy-2: Role of edge dislocation dipoles and vacancies
The mechanism of cyclic softening in annealed Zircaloy-2 at low strain amplitudes under
strain controlled fatigue at room temperature is rationalized. The unusual softening due to …
strain controlled fatigue at room temperature is rationalized. The unusual softening due to …
Microstructure evolution of cold-worked Zircaloy-4 under 20 MeV Cu ion irradiation
SE Naceri, M Izerrouken, A Ishaq… - Philosophical …, 2019 - Taylor & Francis
ABSTRACT Cold-worked Zircaloy-4, used for the fuel grid of research reactors, was
irradiated with 20 MeV Cu ions at different doses varying from 0.007 to 0.15 displacements …
irradiated with 20 MeV Cu ions at different doses varying from 0.007 to 0.15 displacements …
The effect of nano-size second phases on the tribological performance of TNTZ alloy
The tribological performance of Ti-29Nb-14Ta-4.5 Zr (TNTZ) alloy reinforced by various
nano-sized phases has been studied. The β-phase matrix was reinforced by the different …
nano-sized phases has been studied. The β-phase matrix was reinforced by the different …
Heavy ion irradiation induced defects in Zircaloy-4
Radiation damage induced in Zircaloy-4 by 20 MeV Au ions was investigated using Grazing
x-ray diffraction (GIXRD), positron annihilation techniques, micro-and nano-hardness …
x-ray diffraction (GIXRD), positron annihilation techniques, micro-and nano-hardness …