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Archives of Metallurgy and Materials
2017 Vol. 62, iss. 4 2433--2440
EN The paper presents the results of the influence of commercial TiBor and AlSr10 master alloys on the refine the grains size, hardness and crystallisation process based on the thermal-derivation analysis of light cast magnesium-lithium-aluminium alloys. The effects of TiBor and AlSr10 content on the c[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The aim of the paper is to determine the influence of hot-rolling conditions on structure of new-developed high-manganese austenitic steels. Design/methodology/approach: Flow stresses during continuous and multi-stage compression tests were measured using the Gleeble 3800 thermo-mechanical [...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
2019 Vol. 67, nr 4 709--717
EN The study attempts to investigate the influence of severe plastic deformation (SPD in the hydrostatic extrusion (HE) process on the anisotropy of the structure and mechanical properties of the AA 6060 alloy. Material in isotropic condition was subjected to a single round of hydrostatic extrusion wit[...]
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Archives of Metallurgy and Materials
EN The article presents research aimed at determining the effect of adding rare earth elements to near-eutectic Al-Si and Al-Si-Ni alloys on the microstructure and mechanical properties of the obtained products. Material for the research was prepared using a melt spinner - a device used for rapid cryst[...]
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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
EN The present paper deals with a study on formation of specific substructural features in OFHC copper processed by equalchannel angular pressing (ECAP) considering different strain rate conditions. Since two mechanical tensile testing equipments were being used, strain rate response could be studied i[...]
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Archives of Metallurgy and Materials
EN In the current study, severe plastic deformation (SPD) was applied on a commercial Mg-3Al-1Zn alloy tubes via parallel tubular channel angular pressing (PTCAP) route. Different passes of PTCAP process were applied, and microstructure, hardness and tensile properties at the room, and elevated tempera[...]
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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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Journal of Casting & Materials Engineering
EN The grain refinement in a real casting manufactured by Low Pressure Die Casting (LPDC) such as wheels and steering knuckles depends on the grain-refinement potential of the metal and the geometry of the part/process parameters. For this study, the effect of the cooling rate on the AlSi7Mg alloy with[...]
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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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International Journal of Applied Mechanics and Engineering
EN The results of grain refinement of silumin AlSi74 with additives of AlB4 and AlTi6 are shown. It is found that grain refinement has a favorable influence on the structure and mechanical properties of the alloy tested.
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Computer Methods in Materials Science
PL Artykuł dotyczy wpływu zmian długości powierzchni styku matrycy i współczynnika kształtu (stosunek wymiaru środnika do stopki) do na ciśnienie i strukturę powierzchni stopu ołowiu po plastycznym odkształcaniu na zimno do kształtu liter T oraz L. Wiedza na temat wpływu długości powierzchni styku matr[...]
EN This paper investigates the effects of changing die land length (an uncommonly investigated extrusion parameter) and web to flange ratio on the pressure and surface structures of cold plastic deformation of a triangular-, T- and L-shaped lead alloy. There exists a dearth of knowledge on the influenc[...]
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Advances in Materials Science
PL W pracy zaprezentowano nowy, skuteczny sposób rozdrabniania ziarna gruboziarnistych dwufazowych stopów na osnowie fazy międzymetalicznej TiAI, wyłącznie zabiegami wieloetapowej obróbki cieplnej. Analizowano wpływ poszczególnych parametrów każdego etapu obróbki na efekt rozdrobnienia ziarna oraz niek[...]
EN In this work presented a new efficient way for grain regining of coarse gram two-phase TiAl based alloys merely by multi-stage heat treatment The effect of particular parameters of every beat treatment stage was analyzed on gram refinement and some properties of Ti-48A1-2Cr-2Nb alloy. It was found, [...]
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Archiwum Technologii Maszyn i Automatyzacji
PL Modyfikacja aluminium dodatkami 0,2-0,4% AITi5BO,2 spowodowała korzystne rozdrobnie-nie struktury .W badaniach metodą mikroskopii elektronowej zlokalizowano ośrodki heterogenicznej krystalizacji aluminium, które tworzą cząstki TiB(2)/ Al.(3)Ti.
EN Modification of aluminium by additives of 0.2-0.4% AITi5BO.2 caused advantageous refinement of metal structure. In the investigations by scanning microscope (EDX-analyse) the hetero-geneous crystallization centra, defined as TiB(2)/ AI(3)Ti, particles have been localized.
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Archives of Metallurgy and Materials
PL Stop C65500 jest wysoko wytrzymałym stopem inżynierskim charakteryzującym sie bardzo dobrą odpornością korozyjną w wielu agresywnych środowiskach. Połączenie odporności korozyjnej, wysokiej wytrzymałości i podatności do przeróbki plastycznej sprawia że jest powszechnie stosowanym stopem miedzi. W pr[...]
EN C65500 is a high strength engineering alloy that has excellent resistance to a wide range of corrosive environments. Combination of corrosion resistance, strength, and formability place it among the most widely used copper alloys. In the present study, a C65500 alloy was subjected to severe plastic [...]
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Archiwum Odlewnictwa
2005 R. 5, nr 15 231--240
PL Praca poświecona jest badaniom modyfikacji (rozdrabniania) struktury wysoko-aluminiowych, odlewanych stopów cynku (HAl-Zn). Na podstawie prac zagranicznych oraz prac własnych, wykonanych przez autora i współpracowników w ostatnich 20 latach, omówione zostały badania z obszaru praktyki modyfikowania [...]
EN The presented paper covers works concerning grain-refinement of the high-aluminium zinc cast alloys (HAl-Zn). On the basis of the foreign works and of the research performed by the author and co-workers during the past twenty years – the results of the investigations concerning the practice of the H[...]
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Archives of Foundry Engineering
PL Staliwo niskostopowe jest materiałem o bardzo dobrych właściwościach mechanicznych, chętnie stosowanym na elementy maszyn pracujących w warunkach dużych obciążeń, a także w warunkach zużycia ściernego. Świetne właściwości wytrzymałościowe otrzymywane podczas produkcji odlewów z tego staliwa (Rm[...]
EN The low alloy cast steels have the good mechanical properties, and it finds wide area of applications in the manufacture of this parts, which work with high dynamic loads and in wear conditions. High strength obtained during manufacturing process results in a decrease of the elongation which hardly [...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The aim of the paper is to determine the influence of hot-working conditions on microstructure evolution and phase composition of new-developed high-manganese austenitic TRIP-type steels. Design/methodology/approach: The hot-working behaviour was determined in continuous and multistage comp[...]
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Archives of Foundry Engineering
EN The paper presents relationships between the degree of structure fineness and feeding quality of the Al – 20 wt.% Zn (Al-20 Zn) alloy cast into a mould made from sand containing silica quartz as a matrix and bentonite as a binder, and its damping coefficient of the ultrasound wave at frequency of 1 [...]
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Inżynieria Materiałowa
PL W artykule przedstawiono możliwości zastosowania wodoru jako tymczasowego pierwiastka stopowego w stopie Ti-6Al-4V. Wysokotemperaturowa obróbka wodorowa materiałów (HTM – Hydrogen Treatment of Materials) może być atrakcyjną metodą kontroli rozmiaru ziaren w dwufazowych stopach tytanu. W artykule prz[...]
EN The paper presents the possibilities of hydrogen usage as a temporary alloying element in Ti-6Al-4V alloy. The HTM – Hydrogen Treatment of Materials can be as an attractive method for controlling a grain size in two-phases titanium alloy. This paper presents the possibilities of combining high-tempe[...]
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