Posmyk A.、Myalski J.、Wistuba H.2015-12-01Archives of Metallurgy and Materials
The paper presents some basic information on manufacturing, structure and selected properties of a new hybrid composite with an aluminium alloy matrix elaborated for automotive applications. A porous oxide ceramics constitute the reinforcing phase of the composite and glassy carbon plays the role of a solid lubricant.…
Ahmed A. Al-Joubori、C. Suryanarayana2015-12-01Materials & Design
Mechanical alloying of Ni–Ge elemental powder blends was carried out in a high-energy SPEX shaker mill to study phase evolution as a function of milling time. X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy techniques were employed to characterize the phases present in the milled po…
Chetan Hazaree、Viswanath Mahadevan2015-12-01Case Studies in Construction Materials
This paper describes the execution challenges faced during single stage pumping of concrete through 2.432 km. Pump and pipeline selection and installation, materials’ development, establishing of control points and controlling variations are discussed. Concrete responses to weather changes play a vital role in concret…
Hyrcza-Michalska M.、Kawalla R.、Dembińska J.2015-12-01Archives of Metallurgy and Materials
The paper presents the results of a study of drawability of thin AZ31 magnesium alloy metal sheets. These studies are a continuation of experiences in presenting the characteristics of technological plasticity of strips made of magnesium alloy which have been cast between rolls in vertical and horizontal systems calle…
Bokota A.、Kulawik A.、Szymczyk R. 等 4 位作者2015-12-01Archives of Metallurgy and Materials
In the paper the complex model of hardening of the hot-work tool steel is presented. Model of estimation of phase fractions and their kinetics is based on the continuous heating diagram (CHT) and cooling diagram (CCT). Phase fractions which occur during the continuous heating and cooling (austenite, pearlite or bainit…
Gryc K.、Strouhalová M.、Smetana B. 等 5 位作者2015-12-01Archives of Metallurgy and Materials
Thermo-physical and thermodynamic properties of metallic systems represent some of the most important data that allows to describe their behaviour under strictly specified conditions. These data are the basic, input data for simulative programs, which can model this behaviour and they can be applied to real conditions…
Niemiec D.、Moskal G.、Jasik A.2015-12-01Archives of Metallurgy and Materials
The article presents the results of research related to the impact of pretreatment plasma sprayed NiCrAlY coating on the kinetics of the oxidation. The analysis covered the shell subjected to thermal spraying. The test were performed at a temperature of 1000ºC and 1100ºC the samples were removed from the furnace after…
Nó M.L.、Dirand L.、Denquin A. 等 4 位作者2015-12-01Archives of Metallurgy and Materials
In the present work we have studied the high-temperature shape memory alloys based on the Ru-Nb system by using two mechanical spectrometers working in temperature ranges from 200 to 1450ºC and -150 to 900ºC. We have studied internal friction peaks linked to the martensitic transformations in the range from 300 to 120…
Silva M.R.、Silva L.B.S.、Rodrigues Junior D. 等 4 位作者2015-12-01Archives of Metallurgy and Materials
The compound magnesium diboride (MgB2) has been well-known since the 1950s; however, its superconducting properties were unknown. Intrinsic characteristics of MgB2 make this material a promising candidate for technological applications, although the low value of the irreversibility field and the decrease in critical c…
Pawłowska B.、Śliwa R.E.2015-12-01Archives of Metallurgy and Materials
The paper presents an analysis of selected aluminum alloys as structural materials used in production of aircraft parts as well as specification of technological parameters of Al alloys extrusion on a backward press with their effect on mechanical properties, microstructure and quality of the final product. Upsetting…
作者信息未提供2015-12-01Case Studies in Construction Materials
Mežibrický R.、Fröhlichová M.、Mašlejová A.2015-12-01Archives of Metallurgy and Materials
The effort to minimize CO2 emissions leads the existing integrated steel plants to implement alternative biomass-based fuels that dispose of equilibrium carbon balance. The fuel is a key factor in the iron ore sinter production, so it is essential to know its impact not just on mechanical properties of the finished si…
Beatrice Fraboni、Alessandra Scidà、Piero Cosseddu 等 7 位作者2015-12-01Science and Technology of Advanced Materials
We report on the effects of low energy ion implantation on thin films of pentacene, carried out to investigate the efficacy of this process in the fabrication of organic electronic devices. Two different ions, Ne and N, have been implanted and compared, to assess the effects of different reactivity within the hydrocar…
F. Lambiase2015-12-01Materials & Design
In the present study, the mechanical behaviour of polymer–metal hybrid connections produced by clinching is investigated. Thin sheets were joined using different tools including grooved, split and flat dies as well as rectangular tools. The effect of the joining force on joinability was also analysed. Polycarbonate wa…
Fayçal El Fgaier、Zoubeir Lafhaj、Franck Brachelet 等 5 位作者2015-12-01Case Studies in Construction Materials
The objective of this study is to demonstrate and to study the sustainability and the qualities of the earthen construction in real conditions. A demonstrative building was designed and built with unfired clay bricks, were industrially produced by the factory “Briqueteries du Nord” (BdN). This industrial plant is loca…
Jarzębska A.、Bogucki R.、Bieda M.2015-12-01Archives of Metallurgy and Materials
In order to investigate the influence of the deformation degree and aging time on the mechanical properties and microstructure of AA7050 alloy static tensile test, microhardness measurements, calorimetric analysis and observations of the microstructure in the transmission and scanning electron microscope were carried…
Wiewiórowska S.、Muskalski Z.、Ciepiela W.2015-12-01Archives of Metallurgy and Materials
Change in the stress state is one of the factors that determined the transition of retained austenite to martensite. It has been proved that in products made from wires of a TRIP structure, which is characterized by a high retained austenite content, loading them with varying in sign cyclic stresses of magnitudes lowe…
Wilk M.S.、Śliwa R.E.2015-12-01Archives of Metallurgy and Materials
The above paper presents the assumptions and results of the research whose aim was to determine the influence of 2024, 6061 and 7075 aluminum alloys on the final properties of GLARE-type composites. GLARE 3 2/1 type composites, made of two layers of the epoxy prepreg, reinforced with unidirectional glass fibers, arran…
Willner J.、Fornalczyk A.2015-12-01Archives of Metallurgy and Materials
Catalytic converters contain the catalytic substance in their structure, which is a mixture of Platinum Group Metals (PGMs): platinum, palladium and rhodium. The prices of these metals and a growing demand for them in the market, make it necessary to recycle spent catalytic converters and recovery of PGMs. The ceramic…
Wanhe Wang、Tian-Shu Kang、Philip Wai Hong Chan 等 7 位作者2015-12-01Science and Technology of Advanced Materials
We report herein the use of an exonuclease III and G-quadruplex probe to construct a G-quadruplex-based luminescence detection platform for Hg2+. Unlike common DNA-based Hg2+ detection methods, when using the dsDNA probe to monitor the hairpin formation, the intercalation of the dsDNA probe may be influenced by the di…