Blar i NTNU Open på forfatter "Vinogradov, Alexey"
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The fundamental difference between cleavage and hydrogen-assisted quasi-cleavage in ferritic materials revealed by multiscale quantitative fractographic and side surface characterization
Merson, Evgeniy; Myagkikh, Pavel; Poluyanov, Vitaliy; Dorogov, Maxim; Merson, Dmitry; Vinogradov, Alexey (Peer reviewed; Journal article, 2021)The fracture surfaces and cracks in technically pure iron, Fe-2.5% Si alloy and low-carbon steel grade S235JR produced by quasi-cleavage (QC) hydrogen-assisted cracking (HAC) as well as by true cleavage (TC) were studied ... -
Heat dissipation and acoustic emission features of titanium alloys in cyclic deformation mode
Iziumova, A. Yu.; Vshivkov, A.N.; Prokhorov, A.E.; Panteleev, I.A.; Mubassarova, V.A.; Plekhov, O.A.; Linderov, Mikhail; Merson, Dmitry; Vinogradov, Alexey (Peer reviewed; Journal article, 2021)The present work unveils the features of heat dissipation and acoustic emission accompanying the fatigue crack growth in a titanium alloy (Ti-0.8Al-0.8Mn and Ti Grade 2) using the compact tension and Charpy V-notch specimens. ... -
High Performance Fine-Grained Biodegradable Mg-Zn-Ca Alloys Processed by Severe Plastic Deformation
Vinogradov, Alexey; Vasilev, Evgeni; Kopylov, Vladimir I; Linderov, Mikhail; Brilevesky, Alexander; Merson, Dmitry (Journal article; Peer reviewed, 2019)The tensile strength, fatigue, and corrosion fatigue performance of the magnesium alloy ZX40 benefit strongly from hybrid deformation processing involving warm equal-channel angular pressing (ECAP) at the first step and ... -
High strength and fatigue properties of Mg-Zn-Ca alloys after severe plastic deformation
Vasilev, Evgeni; Kopylov, Vladimir I; Linderov, Mikhail L.; Brilevsky, AI; Merson, Dmitri; Vinogradov, Alexey (Journal article; Peer reviewed, 2019)Magnesium alloys are the lightest metallic structural materials with an outstanding specific strength. This makes them appealing for a wide range of applications in “green” transportation where weight saving is of major ... -
Influence of energy dissipation at the interphase boundaries on impact fracture behaviour of a plain carbon steel
SV, Panin; DD, Moiseenko; PV, Maksimov; IV, Vlasov; AV, Byakov; PO, Maruschak; Berto, Filippo; S, Schmauder; Vinogradov, Alexey (Journal article; Peer reviewed, 2018)The paper deals with the impact deformation and fracture behaviour of commercial plain carbon pipe steel 17Mn1Si. The explicit account of the internal grain structure, temperature and geometry of the notch have been made ... -
Influence of the solute concentration on the anelasticity in Mg-Al alloys: A multiple-approach study
Drozdenko, Daria; Capek, Jan; Clausen, Bjørn; Vinogradov, Alexey; Mathis, Kristian (Journal article; Peer reviewed, 2019)The anelastic mechanical response caused by complex twinning-detwinning processes interacting with dislocation slip in Mg and its alloys is ubiquitous for their deformation behavior. A rare blend of advanced in-situ ... -
Inhibiting stress corrosion cracking by removing corrosion products from the Mg-Zn-Zr alloy pre-exposed to corrosion solutions
Merson, Evgeniy; Poluyanov, Vitaliy; Myagkikh, Pavel; Merson, Dmitry; Vinogradov, Alexey (Peer reviewed; Journal article, 2021)Magnesium and its alloys are susceptible to stress-corrosion cracking (SCC), which can manifest itself during the slow-strain rate tensile (SSRT) testing in air if the specimens were pre-exposed to corrosive media. This ... -
Intelligent condition monitoring of bearings for early material damage detection using acoustic emission signals
Wang, Yu (Doctoral theses at NTNU;2023:299, Doctoral thesis, 2023)Rotating machinery is a vital component in maritime vessels and wind turbines, and bearing is one of the most important parts in rotating machinery providing support, reducing friction, and facilitating smooth operation. ... -
Investigation and modelling of plastic deformation aided by in situ monitoring techniques
Sendrowicz, Aleksander (Doctoral theses at NTNU;2022:347, Doctoral thesis, 2022)A synergy from three modern in situ techniques - infrared thermography, digital image correlation, and acoustic emission - used concurrently has been obtained to gain deeper insight into deformation kinetics and energy ... -
Investigation of the microstructure evolution and deformation mechanisms of a Mg-Zn-Zr-RE twin-roll-cast magnesium sheet by in-situ experimental techniques
Mathis, Kristian; Horvath, Klaudia; Farkas, Gergely; Choe, Heeman; Shin, Kwang Seon; Vinogradov, Alexey (Journal article; Peer reviewed, 2018)Twin roll casting (TRC), with a relatively fast solidification rate, is an excellent production method with promising potential for producing wrought semi or final Mg alloy products that can often suffer from poor formability. ... -
Kinetics of cyclically-induced mechanical twinning in γ-TiAl unveiled by a combination of acoustic emission, neutron diffraction and electron microscopy
Vinogradov, Alexey; Heczko, M.; Mazánová, V.; Linderov, Mikhail; Kruml, T. (Peer reviewed; Journal article, 2021)The cyclic response and the microstructure evolution of the near γ-TiAl alloy are investigated by a blend of contemporary experimental techniques centred around in-situ acoustic emission (AE) measurements reflecting the ... -
Mechanical Twinning is a Correlated Dynamic Process
Vinogradov, Alexey; Agletdinov, E; Merson, D (Journal article; Peer reviewed, 2019)Plastic deformation and fracture of materials is accompanied by generation of elastic wave transients known as acoustic emissions (AE). A novel complex methodology combining the statistical analysis of distributions of ... -
Novel method for in situ damage monitoring during ultrasonic fatigue testing by the advanced acoustic emission technique
Seleznev, Mikhail; Weidner, A.; Biermann, H.; Vinogradov, Alexey (Peer reviewed; Journal article, 2021)Ultrasonic fatigue testing (USFT) is an effective method for the rapid characterisation of the high cycle fatigue properties of structural materials. However, the process of initiation and progression of fatigue damage ... -
On the long-term correlations in the twinning and dislocation slip dynamics
Agletdinov, E.; Drozdenko, D.; Harcuba, P.; Dobron, P.; Merson, D.; Vinogradov, Alexey (Peer reviewed; Journal article, 2020)The present work aims at gaining new insights into the dynamics of the dislocation slip and twinning processes, which govern the majority of possible scenarios of plastic deformation in structural metals and alloys. Using ... -
On the role of hydrogen in stress corrosion cracking of magnesium and its alloys: Gas-analysis study
Merson, Evgeni; Myagkikh, Pavel; Poluyanov, Vitaliy; Merson, Dmitri; Vinogradov, Alexey (Journal article; Peer reviewed, 2019)One of the main challenges impeding wider uptake of magnesium alloys by the industry is their poor resistance to general corrosion and stress-corrosion cracking (SCC), the nature of which is not fully understood. Although ... -
On the role of pre-exposure time and corrosion products in stress-corrosion cracking of ZK60 and AZ31 magnesium alloys
Merson, Evgeniy; Poluyanov, Vitaliy; Myagkikh, Pavel; Merson, Dmitry; Vinogradov, Alexey (Peer reviewed; Journal article, 2021)Pre-exposure of Mg alloys to corrosive media causes their embrittlement, which has been long associated with diffusible hydrogen penetrating into the metal. The time of the pre-exposure was suggested to promote embrittlement ... -
On the shear band velocity in metallic glasses: A high-speed imaging study
Seleznev, M; Yasnikov, IS; Vinogradov, Alexey (Journal article; Peer reviewed, 2018)Development of localised shear bands (SB) in bulk metallic glassy (BMG) alloys was investigated by a high-speed microscopic imaging technique. The velocities of SBs propagating by a progressive mechanism were found to be ... -
Phenomenological approach towards modelling the acoustic emission due to plastic deformation in metals
Vinogradov, Alexey; Yasnikov, IS; Merson, D. L. (Journal article; Peer reviewed, 2019)Considering acoustic emission (AE) as a phenomenon reflecting the elastic energy dissipation process in deforming metals, a simple yet self-consistent model is proposed to account for the AE behaviour accompanying ... -
A phenomenological model of deformation twinning kinetics
Vinogradov, Alexey (Peer reviewed; Journal article, 2021)Inspired by the classical Olson and Cohen model for martensitic phase transformations, a simple phenomenological model of the deformation twinning kinetics is proposed with account for twin-twin interactions. The model was ... -
A phenomenological model of twinning-mediated strain hardening
Vinogradov, Alexey; Agletdinov, Einar; Yasnikov, Igor S.; Máthis, Kristian; Estrin, Yuri (Peer reviewed; Journal article, 2020)We present a model of strain-hardening in materials with twinning-mediated plasticity. While the model is largely phenomenological, it was motivated by microstructural considerations and can be claimed to be physically ...