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Computer Methods in Materials Science
PL Procesy SPD (z ang. Severe Plastic Deformation - Duże Odkształcenie Plastyczne) są jedną z nowych metod kształtowania plastycznego metali. W Katedrze Modelowania Procesów i Inżynierii Medycznej Politechniki Śląskiej są prowadzone obecnie badania tego typu procesów. Badania dotyczą dwóch metod nieko[...]
EN Severe Plastic Deformation processes are one of the new method of metal forming processes. At present some research in this range is be carrying at Process Modelling and Medical Engineering Department of Silesian University of Technology. This research concerns two non-conventional metal forming met[...]
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Computer Methods in Materials Science
PL Przez kilka ostatnich lat wiele pracy zostało włożone od strony eksperymentalnej oraz modelowania numerycznego w opracowywanie niekonwencjonalnych procesów plastycznego kształtowania metali.Efekt zmiany drogi odkształcenia wpływa na wiele istotnych własności materiałowych np. wzrost plastyczności. T[...]
EN A review of the developed numerical models for simulation of the bulk metal forming processes that take into account influence of the strain path change on material flow is presented in this paper. The strain patch change effect influences many crucial properties of the deformed material i.e. leads [...]
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Advances in Materials Science
EN Hydrostatic extrusion (HE), which belongs to the severe plastic deformation (SPD) techniques, permits producing titanium with a nano-crystalline structure. The homogeneity of the microstructure, the volume of the product and also the quality of its surface depend on the parameters of the hydrostatic[...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
EN The development of the crystallographic texture in copper subjected to severe plastic deformation (SPD) by means of high pressure torsion (HPT) and equal-channel angular pressing (ECAP) was experimentally investigated and analyzed by means of computer modelling. It was demonstrated, that the texture[...]
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Journal of Machine Engineering
EN Recent development in the field of numerical modelling of innovative manufacturing processes, in which nanolayered materials can be produced, is presented in the paper. Combination of the Angular Accumulative Drawing, continuous wire drawing and wire flattening were used to produce thin nanolayers t[...]
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Archives of Metallurgy and Materials
2016 Vol. 61, iss. 2B 1235--1240
EN The effect of second phase particles on grain refinement in CuFe2 alloy has been investigated by using rolling with the cyclic movement of rolls (RCMR) method. Two different population of second phase particles of Fe: coherent, about 10 nm in diameter and about 100 nm in size were obtaine[...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
EN This paper presents the results obtained from the structural refinement of selected metals and alloys produced by severe plastic deformation processes. Large levels of deformations were produced using four methods, which differed in the character and dynamics of the loading, as well as in the intens[...]
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Nukleonika
EN In recent years, a number of methods for refining the structure of metals by severe plastic deformation (SPD) have been developed. Some of those methods permit grain refinement to a nanometric level. These methods include, among others, high pressure torsion (HPT), equal channel angular pressing (EC[...]
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Archives of Metallurgy and Materials
2018 Vol. 63, iss. 4 2061--2066
EN The samples of the CuCr0.6 alloy in the solution treated and additionally in aging states were severely plastically deformed by compression with oscillatory torsion (COT) method to produce ultrafine – grained structure. The samples were processed by using process parameters as: frequency of torsion [...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
EN The paper gives an introduction to nanostructuring techniques used for industrial fabrication of hulk nanocrystalline metal s - basic materials utilized in shaping nanoscale structures. Nanostructured metals, called nanometals, can be produced by severe plastic deformation (SPD). We give an expert c[...]
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Archives of Metallurgy and Materials
2016 Vol. 61, iss. 3 1261--1264
EN Influence of the repetitive corrugation on the mechanism occuring during plastic Deformation of CuSn6 alloy This paper presents the research results of Cu$n6 alloy strip at semi-hard state, plastically deformed in the process of repetitive corrugation. The influence of process parameters on the mech[...]
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Materials Science Poland
2005 Vol. 23, No. 3 839--846
EN The goal of the present work is to demonstrate that a bulk, ultra-fine grained microstructure can be obtained by the hydrostatic extrusion process in technical purity 99.5% nickel. Deformation was performed at room temperature to a wire of 3mm in diameter with the total true strain 3.8. Microstructu[...]
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Computer Methods in Materials Science
2013 Vol. 13, No. 2 357--363
PL Równokanałowe wyciskanie kątowe (equal channel angular pressing – ECAP) jest jedną z najpopularniejszych metod otrzymywania ultra drobnoziarnistych metali. Jednak z powodu dużych sił potrzebnych do przeprowadzenia procesu, tylko relatywnie krótkie wstępniaki mogą być wyciskane. Rozwiązaniem problemu[...]
EN Equal channel angular pressing (ECAP) is one of the most popular methods of obtaining ultrafine grained (UFG) metals. However, only relatively short billets can be processed by ECAP due to force limitation. A solution to this problem could be recently developed incremental variant of the process, so[...]
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Materials Science Poland
2005 Vol. 23, No. 1 279--286
EN Hydrostatic extrusion was used as a method for grain refinement in technically pure aluminium andin an aluminium alloy. Both materials were deformed up to a true strain of ~4. Such a deformation resulted in substantial grain size refinement to below 1 žm in aluminium and below 100 nm in the aluminiu[...]
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Archives of Metallurgy and Materials
2018 Vol. 63, iss. 3 1093--1100
EN In the present paper, the effects of the subsequent extrusion after multi-pass equal-channel angular pressing (ECAP) process on the mechanical properties and microstructure of WE43 magnesium alloy are investigated. First, second and fourth passes ECAP followed by an extrusion proc[...]
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Archives of Metallurgy and Materials
2017 Vol. 62, iss. 4 2441--2448
EN This paper presents the study of repetitive corrugation process influence on the strengthening of annealed alloy. Based on the results of mechanical properties of deformed sample, it has been found that the microhardness, ultimate tensile strength, yield strength and apparent elastic limit are signi[...]
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Archives of Metallurgy and Materials
2019 Vol. 64, iss. 4 1563--1568
EN Microstructure and texture of the CuCr0.6 alloy processed by rolling with cyclic movement of rolls (RCMR) at room temperature were investigated. The RCMR processing was applied for the samples in different initial conditions in the solid solution followed by quenching into iced water at 1000°C for 3[...]
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Archives of Metallurgy and Materials
2019 Vol. 64, iss. 4 1533--1540
EN Two strength-age hardening aluminum-lithium alloys: Al-2.3wt%Li and Al-2.2wt%Li-0.1wt%Zr in two different heat treatment conditions: solution state (S) and additionally in aging state (A) were severely plastically deformed by rolling with cyclic movement of rolls (RCMR) method to produce ultrafine -[...]
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Materials Science Poland
2007 Vol. 25, No. 4 991--999
EN Nickel and copper were subject to severe plastic deformation at room temperature, using hydrostatic extrusion (HE) and equal-channel angular pressing (ECAP). The maximum deformation was 13.5 in nickel and 22.3 in copper. These deformations were obtained by each of the techniques separately and by th[...]
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Archives of Metallurgy and Materials
PL W pracy przebadano wpływ dużego odkształcenia plstycznego na mikrostrukture stali C-Mn. Odkształcenie plastyczne nadawano w urządzeniu MaxStrain, w którym materiał odkształca się wzdłuż dwóch prostopadłych kierunków, podczas gdy unieruchomienie końców próbki uniemożliwia odkształcenie w trzecim pros[...]
EN In the present paper an effect of severe plastic deformation (SPD) on the microstructural evolution and properties of a plain C-Mn steel was investigated. The SPD was accomplished by the MaxStrain system which deforms material along two perpendicular axes while the deformation along the third axis i[...]
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