Blar i NTNU Open på forfatter "Vinogradov, Alexey"
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Probing elementary dislocation mechanisms of local plastic deformation by the advanced acoustic emission technique
Vinogradov, Alexey; Danyuk, Alexei V.; Merson, Dmitry L.; Yasnikov, Igor S. (Journal article; Peer reviewed, 2018)To gain a deeper insight into fundamental processes of localised plastic deformation, we propose a new strategy for micro-mechanical testing combining the micro-scale scratching and analysis of low amplitude acoustic ... -
The processing route towards outstanding performance of the severely deformed Al–Mg–Mn-Sc-Zr alloy
Avtokratova, E. V.; Sitdikov, Oleg; Markushev, Mikhail; Linderov, Mikhail; Merson, Dmitry; Vinogradov, Alexey (Journal article, 2021)Aiming at obtaining the enhanced mechanical properties profile for lightweight applications, bulk billets of the commercial 1570C aluminium alloy (Al–5Mg-0.18Mn-0.20Sc-0.08Zr, wt. %) with nanosized aluminides of transition ... -
Quantitative comparison of cleavage and quasi-cleavage fracture surfaces in hydrogen embrittled low-carbon steel
Merson, E.D.; Poluyanov, Vitaliy; Myagkikh, Pavel; Merson, Dmitry; Vinogradov, Alexey (Journal article; Peer reviewed, 2020)The formation mechanism of the quasi-cleavage (QC) fracture surface in hydrogen embrittled low-carbon steels is not fully understood and is, therefore, intensively debated in the literature. At present, there are two ... -
Quasi-cleavage hydrogen-assisted cracking path investigation by fractographic and side surface observations
Merson, ED; Myagkikh, PN; Poluyanov, Vitaliy; Merson, DL; Vinogradov, Alexey (Journal article; Peer reviewed, 2019)Despite recent substantial advances in understanding of hydrogen embrittlement (HE), many important aspects of this widespread phenomenon remain a subject of debates. Particularly, remarkably different opinions have been ... -
Recrystallization at crack surfaces as a specific fracture mechanism at elevated temperatures—cellular automata simulation
Moiseenko, Dmitry D.; Maksimov, Pavel V.; Panin, Sergey V.; Schmauder, Siegfried; Panin, Victor E.; Babich, Dmitriy S.; Berto, Filippo; Vinogradov, Alexey; Brückner-Foit, Angelika (Journal article; Peer reviewed, 2018) -
Shear Bands Topology in the Deformed Bulk Metallic Glasses
Seleznev, Mikhail; Vinogradov, Alexey (Peer reviewed; Journal article, 2020)Recent experimental studies revealed the presence of Volterra dislocation-type long-range elastic strain/stress field around a shear band (SB) terminated in a bulk metallic glass (BMG). The corollary from this finding is ... -
Small-Scale Mechanical Testing of Single Crystal Fe at Low Temperatures
Hagen, Anette Brocks (Doctoral theses at NTNU;2018:60, Doctoral thesis, 2018)Nowadays, the increasing exploration and production in the Arctic region poses an urgent challenge to the mechanical properties of materials. The lack of knowledge of the “cold-brittleness” raises the need to better ... -
Structure, Texture and Strength of Mg-5.8Zn-0.65Zr Alloy after Hot-to-Warm Multi-Step Isothermal Forging and Isothermal Rolling to Large Strains
Markushev, Mikhail; Nugmanov, Dayan; Sitdikov, Oleg; Vinogradov, Alexey (Journal article; Peer reviewed, 2018)Aiming at improving deformability of wrought Mg alloys, the commercial hot-pressed alloy MA14 (ZK60) was subjected to hot/warm severe plastic deformation (SPD) to a total true strain of 9. The processing schedule involved ... -
A Time-Frequency Based Approach for Acoustic Emission Assessment of Sliding Wear
Rasteagev, Igor; Merson, Dmitry; Rastegaeva, Inna; Vinogradov, Alexey (Peer reviewed; Journal article, 2020)The acoustic emission method is one of few contemporary non-destructive testing techniques enabling continuous on-line health monitoring and control of tribological systems. However, the existence of multiple “pseudo”-acoustic ... -
Tooth flank fracture in spiral bevel gears - Multiaxial fatigue and material properties
Böhme, Stephan Andre (Doctoral theses at NTNU;2022:93, Doctoral thesis, 2022)Due to the improvements made in the prediction and prevention of surfaceinitiated gear failure modes like pitting, tooth root breakage, scuffing and micropitting, a transition from surface to subsurface-initiated failures ... -
Tooth flank fracture – An applied fatigue study of case hardened bevel gears
Böhme, Stephan Andre; Szanti, Gabor; Keski-Rahkonen, Joni; Komssi, Tami; Santaella, Jose Garcia; Vinogradov, Alexey (Peer reviewed; Journal article, 2022)A material model for carburized CrNiMo steel and an advanced shear stress intensity, multiaxial fatigue criterion against surface and subsurface fatigue in bevel gears have been developed and presented in earlier publications. ... -
Using acoustic emission signal categorization for reconstruction of wear development timeline in tribosystems: Case studies and application examples
Rastegaev, I. A.; Merson, D. L.; Danyuk, A. V.; Afanasyev, M.A.; Vinogradov, Alexey (Journal article; Peer reviewed, 2018)The purpose of this work is to demonstrate how a new acoustic emission (AE) technique can be used to monitor friction surface degradation in a four-ball tribosystem under different types of lubrication. The AE method is ...