Ograniczanie wyników
Czasopisma help
Lata help
Autorzy help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Znaleziono wyników: 236
first rewind previous Strona / 12 next fast forward last
Wyszukiwano:
w słowach kluczowych:  plastic deformation
help Sortuj według:

help Ogranicz wyniki do:
1
100%
Materials Science Poland
2007 Vol. 25, No. 2 363--369
EN Mössbauer polarimetry was used for investigations of orientations of Fe magnetic moments in a AFe-Mn system. External magnetic field was applied to single crystal samples. Since the hyperfine field is a vector quantity, it forms a vector sum with the external magnetic field, and this quantity obviou[...]
2
100%
Rudy i Metale Nieżelazne
2011 R. 56, nr 11 660-666
PL W artykule omówiono technologię prasowania obwiedniowego oraz przedstawiono wpływ kąta wahania matrycy górnej i prędkości posuwu narzędzi kształtujących na właściwości i kształt odkuwki wykonanej ze stopu aluminium PA38. Na podstawie przeprowadzonych badań dokonano analizy pęknięć na swobodnie odksz[...]
EN Paper presents the orbital forming technology and also influence of upper die fluctuation angle and velocity of forming tools on shape and properties of forming made of PA38 aluminum alloy. Based on studies the analysis has been made about fracture process on the free formed lateral surface of formi[...]
3
100%
Czasopismo Techniczne. Mechanika
PL W artykule zaproponowano własny model analityczny opisu plastycznej deformacji membran sprzęgieł wielkogabarytowych. Omówiono badania doświadczalne zrealizowane na kołowej koparce wielonaczyniowej, które były podstawą budowy modelu. Przedstawiono algorytm analizy zebranych danych w celu identyfikacj[...]
EN This paper presents the great clutches diaphragms plastic deformation model. The model was created on the experimental way through the research on the wheel excavator. Presented analysis algorithm is a basis for the identification of the causes and the area of the plastic deformation maxima in the g[...]
4
100%
Rudy i Metale Nieżelazne
PL Zdolność magazynowania energii des/dwp (es - energia zmagazynowana, wp - praca odkształcenia plastycznego) jest wielkością makroskopową, odzwierciedlającą wpływ wielu mechanizmów mikroskopowych. Zależność des/dwp (epsilom P ), w początkowym stadium odkształcenia plastycznego, ma maksimum. Postawiono[...]
EN The energy storage rate des/dwp (es is the stored energy, wp is the work of plastic deformation) is a macroscopic quantity that is influenced by many microscopic mechanisms. At the initial stage of plastic deformation the dependence of des/dwp on e has a maximum. The hypothesis has been made that th[...]
5
100%
Computer Assisted Mechanics and Engineering Sciences
EN The main objective of the paper is the investigation of the interaction and reflection of elastic-viscoplastic waves which can lead to localization phenomena in solids. The rate type constitutive structure for an elastic-viscoplastic material with thermomechanical coupling is used. An adiabatic inel[...]
6
100%
Computer Assisted Mechanics and Engineering Sciences
EN We discuss a global, iteration-free numerical scheme (based on the Piecewise Linear algorithm), with special respect to the computation of elasto-plastic frames. The plastic deformations are concentrated in plastic hinges which may appear at both ends of the bars, while the inner parts of the bars c[...]
7
100%
Przegląd Mechaniczny
2001 nr 4 42-45
8
100%
Nukleonika
EN Isochronal and isothermal annealing of stainless steel 1.4307 samples deformed by compression were investigated using Doppler broadening measurements of the annihilation line. We made an attempt to describe the obtained dependencies in terms of vacancy migration and sinking to the grain boundaries. [...]
9
100%
Journal of KONES
2015 Vol. 22, No. 3 161--168
EN Optimal design of engineering structures and technological processes requires taking into account various factors affecting the state of strain and stresses in the structure. Coupled thermo-mechanical analysis enables, among others, determination of undesirable changes in a body shape resulting from[...]
10
100%
Advances in Materials Science
EN In this study scanning electron microscope (SEM) and optical micrograph observations were used to investigate the plastic deformation near the surface of the worn railway wheel following service. Microstructure, plastic deformation and micro-hardness of the material in the outermost tread layer of u[...]
11
100%
Machine Dynamics Problems
EN The aim of the present work is to provide a model for the influence of the surface films on the plasticity of metals. To this end Finite Element Method has been used to solve 2-dimensional plain strain problem. The effect of the film cracks on the deformation of the substrate for the specimens subje[...]
12
100%
Autobusy : technika, eksploatacja, systemy transportowe
2011 R. 12, nr 5 405-413
PL Artykuł dotyczy umocnienia stopu aluminium EN AW 6060 poddanego plastycznej deformacji w procesie kątowego wyciskania w kanale walcowym o stałej średnicy (KWSK). Stan początkowy stopu został wytworzony w procesie prasowania na zimno. Artykuł przedstawia wyniki pomiaru zmian mikrostruktury pod mikros[...]
EN The paper deals with the age-hardening aluminium alloy EN AW 6060 that has been subjected to severe plastic deformation by equal channel angular extrusion (ECAE). The initial state of the alloy was produced by cold pressing. This paper reports the results of the microstructure evaluation by light mi[...]
13
100%
Nukleonika
EN Positron annihilation spectroscopy (PAS) has been used to study the annealing behavior of cold rolled Fe – 21 wt% Mn steel with 0.05 wt% C. After the initial annealing of defects shown by Doppler broadening of the annihilation line, a slight increase in the annihilation line shape parameter, i.e., t[...]
14
100%
Journal of Achievements in Materials and Manufacturing Engineering
2012 Vol. 55, nr 2 679--684
EN Purpose: This study examined the effect of copper on the phase transformation (γ → a')-induced by the deformation and in the variables of the equation that simulates the stress- equivalent strain curve. Design/methodology/approach: The phase transformation (y → a') was studied through the magnetic p[...]
15
100%
Nukleonika
EN Samples of cold rolled UR45N austenitic-ferritic duplex steel with cold rolling reduction ranging from 0% to 80% were investigated in the form of foils and powders by means of Mössbauer transmission spectroscopy. It was found that cold rolling has a minor effect on the martensitic transformation eve[...]
16
100%
Computer Methods in Materials Science
2014 Vol. 14, No. 2 123--130
PL Model naprężenia dla stopu magnezu AZ80 o wielkość ziarna około 30 μm opracowano na podstawie interpretacji: danych doświadczalnych za pomocą rozwiązania odwrotnego. Próby ściskania próbek osiowosymetrycznych przeprowadzone w temperaturach 523, 573 i 623 K z prędkościami odkształcenia 0.01, 0.1 i 1 [...]
EN The flow stress model of AZ80 Mg alloy, whose grain size is approximately 30 μm, is created by interpreting the experimental results with the inverse analysis. Compression tests were conducted at temperatures of 523, 573 and 623 K and at strain rates of 0.01, 0.1 and 1 s"'. On the basis of the test [...]
17
100%
Archives of Metallurgy and Materials
2019 Vol. 64, iss. 4 1495--1501
EN The paper presents research results on the selection of parameters for the asymmetric rolling process of bimetallic plates 10CrMo9-10+X2CrNiMo17-12-2. They consisted in determining the optimum parameters of the process, which would be ensured to obtain straight bands. Such deformat[...]
18
100%
Archives of Metallurgy and Materials
2019 Vol. 64, iss. 4 1361--1368
EN The paper has presented the results of theoretical studies and experimental tests of the plastic deformation of multi-layered Ti/Al/Mg specimens. Theoretical studies were carried out using the Forge2011® computer program. Physical modeling, on the other hand, was performed using the Gleeb[...]
19
88%
Computer Methods in Materials Science
PL Celem pracy jest rozwój modelu na bazie metody elementów skończonych (MES) do symulacji testów udarności układów twardych nanopowłok. Wymienione testy są wykonywane, aby określić odporność materiału na pękanie. Do przedstawionego w pracy modelu MES nie wprowadzono kryteriów pękania. Pokazano jedyni[...]
EN Thin films and coatings are deformed at lower loads than predicted by static tests. The nano-impact technique is a low load impact test capable of revealing marked differences in performance that can be used to optimize the design of coating systems for improved durability. Instead of simply "charac[...]
20
88%
Archives of Mechanics
EN Different mezomechanical models were analysed in an attempt to estimate how large is the portion of elastic energy stored in plastically deformed polcrystalline metals which may be attributed to the residual microstresses, its remaining part being connected with the creation of defects inside the pa[...]
first rewind previous Strona / 12 next fast forward last