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Online since: April 2015
Authors: Andrzej Kiełbus, Bartłomiej Dybowski, Robert Jarosz, Łukasz Poloczek
Majority structural elements from magnesium alloys are produced by means of casting.
The aim of the research was to investigate the influence of wall thickness on the castability and microstructure of modern magnesium alloy with RE and Ag additions – QE22.
Development of Mg alloys led to replacement of Al with rare earth elements, forming more stable compounds on the grain boundaries [1÷3].
Magnesium alloys posses good technological properties such as castability.
Pekguleryuz, Cast magnesium alloys for elevated temperature applications, Journal of Materials Science 29 (29) 5259-5271
The aim of the research was to investigate the influence of wall thickness on the castability and microstructure of modern magnesium alloy with RE and Ag additions – QE22.
Development of Mg alloys led to replacement of Al with rare earth elements, forming more stable compounds on the grain boundaries [1÷3].
Magnesium alloys posses good technological properties such as castability.
Pekguleryuz, Cast magnesium alloys for elevated temperature applications, Journal of Materials Science 29 (29) 5259-5271
Online since: July 2018
Authors: G. Kumaresan, Kalaichelvan Kani
This paper aims to study the formability characteristic of Magnesium alloy by considering variable parameters, such as the sheet thickness, forming pressure and forming temperature.
Introduction Magnesium alloys have attracted significant interest to be used in many applications, especially in the aerospace and automotive industries.
Magnesium alloys often exhibit relatively poor formability at room temperature due to the basal or near basal texture usually developed during rolling.
Until now, only limited work has been available about the superplastic behavior of Magnesium alloys.
K, Multi-dome test for determining the strain rate sensitivity index of a superplastic 7075 Al alloy sheet, The International Journal of Alloys and Compounds. 583 (2014) 226-230
Introduction Magnesium alloys have attracted significant interest to be used in many applications, especially in the aerospace and automotive industries.
Magnesium alloys often exhibit relatively poor formability at room temperature due to the basal or near basal texture usually developed during rolling.
Until now, only limited work has been available about the superplastic behavior of Magnesium alloys.
K, Multi-dome test for determining the strain rate sensitivity index of a superplastic 7075 Al alloy sheet, The International Journal of Alloys and Compounds. 583 (2014) 226-230
Online since: October 2020
Authors: Indra Sidharta, Leonard Leonard, Helena C. Kis Agustin
The research aim is to investigate the effect of stirring during melting of cast aluminium alloys.
ADC 12 cast aluminium alloys is used in the experiment.
The aim of the research is to investigate the effect of stirring on the quality of ADC 12 cast aluminium alloy.
Typical microstructure features of Al-Si are well observed, such as eutectic Si and Al-Fe-Mn intermetallic compound.
Campbell, “Correlation between Bifilm Index and Toughness of Aluminum Alloys,” in Shape Casting: 5th International Symposium 2014, M.
ADC 12 cast aluminium alloys is used in the experiment.
The aim of the research is to investigate the effect of stirring on the quality of ADC 12 cast aluminium alloy.
Typical microstructure features of Al-Si are well observed, such as eutectic Si and Al-Fe-Mn intermetallic compound.
Campbell, “Correlation between Bifilm Index and Toughness of Aluminum Alloys,” in Shape Casting: 5th International Symposium 2014, M.
Online since: March 2016
Authors: Ai Dang Shan, Song Qian Xu, Yan Le Sun, Li Ming Fu, Li Feng Lv, Run Jiang Guo, Xue Feng Yao
To provide insight into the mechanical behavior and microstructural evolution of bulk nano-grained (NG) Ni-based alloys during annealing, the Ni-based alloy sheets with grain size about 50 nm was produced through severe cold-rolling at room temperature, and then the cold rolled (CRed) Ni-based alloys were annealed at different states.
The aim of the present work was to study the evolution of the microstructure, phase constitutions and variation of mechanical properties of the cold-rolled (CRed) NG Ni-based alloy during annealing.
Trumble, Journal of Materials Science, 42 (2007) 1529-1541
Han, Journal of Alloys and Compounds, 554 (2013) 1-11
Wiezorek, Journal of Materials Science, 43 (2008) 7474-7480
The aim of the present work was to study the evolution of the microstructure, phase constitutions and variation of mechanical properties of the cold-rolled (CRed) NG Ni-based alloy during annealing.
Trumble, Journal of Materials Science, 42 (2007) 1529-1541
Han, Journal of Alloys and Compounds, 554 (2013) 1-11
Wiezorek, Journal of Materials Science, 43 (2008) 7474-7480
Online since: July 2008
Authors: Hossein Aashuri, Ali Khosravani, A. Foroughi, M. Kiani, A. Narimannezhad, P. Davami
Han, "Thermal analysis and solidification
pathway of Mg-Al-Ca system alloys", Materials science and engineering A, 2007, Article in
press
Mabuchi, "Effects of Ca addition on the microstructure and mechanical properties of AZ91 magnesium alloys", Journal of materials science, 36, 2001, pp. 3035-3040
Kubota, "Improved heat resistance of Mg-Al alloys by the Ca addition", Acta metallurgical materials, 43, no. 2, 1995, pp. 669-674
[7] Shung-Shou Li, Bin Tang, Da-Ben Zeng," Effects and mechanism of Ca on refinement of AZ91D alloy", Journal of alloys and compounds, 437, 2007, pp.317-321
Nishikawa, "Continuous casting of semisolid Mg-9%Al-1%Zn Alloys", Proc. of The 7 th International Conference on semi-solid Processing of Alloy and Composite, Tsukuba(Japan), 2002, pp.831
Mabuchi, "Effects of Ca addition on the microstructure and mechanical properties of AZ91 magnesium alloys", Journal of materials science, 36, 2001, pp. 3035-3040
Kubota, "Improved heat resistance of Mg-Al alloys by the Ca addition", Acta metallurgical materials, 43, no. 2, 1995, pp. 669-674
[7] Shung-Shou Li, Bin Tang, Da-Ben Zeng," Effects and mechanism of Ca on refinement of AZ91D alloy", Journal of alloys and compounds, 437, 2007, pp.317-321
Nishikawa, "Continuous casting of semisolid Mg-9%Al-1%Zn Alloys", Proc. of The 7 th International Conference on semi-solid Processing of Alloy and Composite, Tsukuba(Japan), 2002, pp.831
Online since: September 2007
Authors: Hidetoshi Sakamoto, Olivier Fournier, Kousuke Kawabata, Tetsuya Hiwatashi, Kazuyoshi Fukagawa, Kousei Takahashi
Because of those properties, Mg
alloys have been widely used even for structural components in the automobile, aerospace and
electronics industry to replace some existing materials [1, 2].
Until now, the casting of magnesium alloys is the first processing technique and the use of die cast process is expected to become more important as well.
The present study aim to investigates the behaviour of AZ31 sheet (magnesium alloy with 3% of aluminium and 1% of zinc) in the deep drawing process at elevated temperature.
Higashi: International Journal of Plasticity Vol.17 (2001), p.387 [4] A.
Compounds Vol.378 (2004), p.184 [5] Y.
Until now, the casting of magnesium alloys is the first processing technique and the use of die cast process is expected to become more important as well.
The present study aim to investigates the behaviour of AZ31 sheet (magnesium alloy with 3% of aluminium and 1% of zinc) in the deep drawing process at elevated temperature.
Higashi: International Journal of Plasticity Vol.17 (2001), p.387 [4] A.
Compounds Vol.378 (2004), p.184 [5] Y.
Online since: April 2009
Authors: Velumani Subramaniam, Kuppusamy Sakthivel, T. Venkatachalam, S. Ganesan
The hot wall system is optimized for the deposition of prepared alloys by using molecular flow
studies with Monte Carlo simulation technique.
Thin films have been deposited on well cleaned glass substrates using the prepared alloys by the optimized hot wall vacuum evaporation system.
The compositions are found to be same for both the bulk and thin films as the prepared alloys.
CdxSn1-xTe alloys have the unique feature of having the narrow range of lattice constants and direct band gaps, tunable from the visible to the far IR by adjusting the x composition of the alloy [6, 7].
Experimental details Bulk compounds of CdTe, Cd0.25Sn0.75Te and Cd0.25Te0.75Sn have been prepared by direct reaction of their high purity elemental Cadmium, Tin and Tellurium (Sigma Aldrich 99.9999%).
Thin films have been deposited on well cleaned glass substrates using the prepared alloys by the optimized hot wall vacuum evaporation system.
The compositions are found to be same for both the bulk and thin films as the prepared alloys.
CdxSn1-xTe alloys have the unique feature of having the narrow range of lattice constants and direct band gaps, tunable from the visible to the far IR by adjusting the x composition of the alloy [6, 7].
Experimental details Bulk compounds of CdTe, Cd0.25Sn0.75Te and Cd0.25Te0.75Sn have been prepared by direct reaction of their high purity elemental Cadmium, Tin and Tellurium (Sigma Aldrich 99.9999%).
Online since: February 2016
Authors: Olga V. Samoilova, Evgeny A. Trofimov
Development of such technologies required the search of compounds of the metal with relatively low melting points.
The study was carried out in the searching of compounds containing three or more elements belonging to the Fe–Ni–Co–Mn–Si–C system in the databases SGTE2011, SGPS, FSupsi and FactPS.
The melt obtained from mixture granules of master alloys, including Fe–Ni–Co–Mn–Si and Fe–Ni–Co–Mn–C, was cooled for 5 hours slowly in the electric resistance furnace from 1473 K to 1073 K.
Point 3 is the metal alloy Fig. 8.
Tanaka, Fundamental study for solvent growth of silicon carbide utilizing Fe–Si melt, Journal of Physics: Conference Series. 165 (2009) 012022
The study was carried out in the searching of compounds containing three or more elements belonging to the Fe–Ni–Co–Mn–Si–C system in the databases SGTE2011, SGPS, FSupsi and FactPS.
The melt obtained from mixture granules of master alloys, including Fe–Ni–Co–Mn–Si and Fe–Ni–Co–Mn–C, was cooled for 5 hours slowly in the electric resistance furnace from 1473 K to 1073 K.
Point 3 is the metal alloy Fig. 8.
Tanaka, Fundamental study for solvent growth of silicon carbide utilizing Fe–Si melt, Journal of Physics: Conference Series. 165 (2009) 012022
Online since: April 2023
Authors: L.A. Degtyar, I.Y. Zhukova, K.V. Ovchinnikova
Properties and Structure Electrodeposition Alloys and Composite Electrochemical Coatings of Nickel-Based
K.V.
Metals (nickel, copper, iron, zinc, tin, silver, gold) or alloys (nickel-boron, nickel-phosphorus, etc.) can be used as a CEC matrix.
A distinctive feature of these electrolytes is the formation of metal coatings due to the reduction of not only metal ions, but also colloids and / or finely dispersed compounds of this metal.
The aim of this study is to study the physical and mechanical properties and structure of nickel-cobalt (Ni-Co) electroplated alloys and nickel-cobalt-nanodiamond (Ni-Co-ND) electroplating alloys obtained from colloid electrolytes.
Thus, the leveling effect on the structure of galvanic deposits of dispersed additives, as well as colloidal compounds of nickel and cobalt, has been determined.
Metals (nickel, copper, iron, zinc, tin, silver, gold) or alloys (nickel-boron, nickel-phosphorus, etc.) can be used as a CEC matrix.
A distinctive feature of these electrolytes is the formation of metal coatings due to the reduction of not only metal ions, but also colloids and / or finely dispersed compounds of this metal.
The aim of this study is to study the physical and mechanical properties and structure of nickel-cobalt (Ni-Co) electroplated alloys and nickel-cobalt-nanodiamond (Ni-Co-ND) electroplating alloys obtained from colloid electrolytes.
Thus, the leveling effect on the structure of galvanic deposits of dispersed additives, as well as colloidal compounds of nickel and cobalt, has been determined.
Online since: February 2016
Authors: Olga Bondareva, Alexey A. Melnikov
Melnikov1,b
1 Samara State Aerospace University, 34, Moskovskoe Shosse, Samara, 443086, Russia
aosbond@yandex.ru (corresponding author), bmelnickov.alex@yandex.ru
Keywords: Hot-dip Galvanizing, Machine Steel, Dross phase formation, Galvanizing baths, Iron zinc nickel alloys
Abstract.
The aim of this work is to investigate the microstructure, mechanism of formation and elemental composition of this dross.
Γ2-phase is an intermetallic compound Fe6Ni5Zn89, isomorphic with FeZn4.
Raghavan, Fe-Ni-Zn (Iron-Nickel-Zinc), Journal of Phase Equilibria. 24 (2003) 569-560 [7] X.P.
Toguri, Thermodynamic evaluation of the Fe-Zn system, Journal of Alloys and Compounds. 325 (2001) 129-136 [8] S.M.A.
The aim of this work is to investigate the microstructure, mechanism of formation and elemental composition of this dross.
Γ2-phase is an intermetallic compound Fe6Ni5Zn89, isomorphic with FeZn4.
Raghavan, Fe-Ni-Zn (Iron-Nickel-Zinc), Journal of Phase Equilibria. 24 (2003) 569-560 [7] X.P.
Toguri, Thermodynamic evaluation of the Fe-Zn system, Journal of Alloys and Compounds. 325 (2001) 129-136 [8] S.M.A.