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Online since: September 2018
Authors: Yurii F. Ivanov, Oleg S. Tolkachev, Pavel Moskvin, Elizaveta A. Petrikova, Olga V. Krysina, Nikolay Koval
The aim was to alloy materials poorly soluble in solid states and/or greatly differing in melting temperature, which makes their ordinary metallurgical alloying difficult or almost impossible.
Our aim here is to analyze the properties of aluminum after its surface alloying with titanium through multicycle film deposition and intense pulsed electron beam irradiation.
The phase composition of the Al surface layer after its multicycle alloying with Ti reveals intermetallic compounds AlTi, TiAl2, Al3Ti, and Al5Ti2 (Fig. 2). 2q, degrees Figure 2.
Celotti, Compounds in the Pd-Si and Pt-Si system obtained by electron bombardment and post-thermal annealing, J.
Follstaedt, Ion channeling and TEM studies of pulse melted Fe(Pd) alloys Nuclear Instruments and Methods in Physics Research 218 (1-3) (1983) 542–546
Our aim here is to analyze the properties of aluminum after its surface alloying with titanium through multicycle film deposition and intense pulsed electron beam irradiation.
The phase composition of the Al surface layer after its multicycle alloying with Ti reveals intermetallic compounds AlTi, TiAl2, Al3Ti, and Al5Ti2 (Fig. 2). 2q, degrees Figure 2.
Celotti, Compounds in the Pd-Si and Pt-Si system obtained by electron bombardment and post-thermal annealing, J.
Follstaedt, Ion channeling and TEM studies of pulse melted Fe(Pd) alloys Nuclear Instruments and Methods in Physics Research 218 (1-3) (1983) 542–546
Online since: September 2018
Authors: Luciano Pessanha Moreira, Marcela Teixeira Dalboni Garcia, Darlene Souza da Silva Almeida, Ladario da Silva, José Adilson de Castro
However, a serious limitation for the application of the magnesium alloys is their susceptibility to corrosion.
When exposed to the ambient atmosphere, these alloys naturally develop a surface film of oxides and/or hydroxides.
Therefore, in view of the scarcity of ellipsometric data for AZ31 alloy, this work aimed to establish an efficient methodology to access the optical characteristics of the AZ31 alloy (substrate) and to construct an efficient model to determine the thickness of oxides/hydroxides films grown on this material.
Fusheng: Magnesium Alloys Corrosion and Surface Treatments (2011) 29-46
Huang: Journal of Alloys and Compounds Vol. 587 (2014), p. 527
When exposed to the ambient atmosphere, these alloys naturally develop a surface film of oxides and/or hydroxides.
Therefore, in view of the scarcity of ellipsometric data for AZ31 alloy, this work aimed to establish an efficient methodology to access the optical characteristics of the AZ31 alloy (substrate) and to construct an efficient model to determine the thickness of oxides/hydroxides films grown on this material.
Fusheng: Magnesium Alloys Corrosion and Surface Treatments (2011) 29-46
Huang: Journal of Alloys and Compounds Vol. 587 (2014), p. 527
Online since: August 2023
Authors: Johannes Winklhofer, Jie Hua Li, Fabian Hofstätter, Stefan Griesebner, Ivo Spacil
However, the die soldering is still an inevitable problem for rheocasting of Al-7Si-0.3Mg alloys, despite the fact that the rheocasting of Al-7Si-0.3Mg alloys shows a lower die soldering tendency than high pressure die casting of Al-7Si-0.3Mg alloys.
A soldering critical temperature is postulated, at which iron begins to react with aluminium to form an aluminium rich liquid phase and solid intermetallic compounds.
All thermal analysis curves of eight alloys are shown in Appendix (Fig.
All optical microcopy images of eight alloys are shown in Appendix (Fig.
All SEM BS images of eight alloys are shown in Appendix (Fig.
A soldering critical temperature is postulated, at which iron begins to react with aluminium to form an aluminium rich liquid phase and solid intermetallic compounds.
All thermal analysis curves of eight alloys are shown in Appendix (Fig.
All optical microcopy images of eight alloys are shown in Appendix (Fig.
All SEM BS images of eight alloys are shown in Appendix (Fig.
Online since: June 2013
Authors: M. Amuei, R. Khorshidi, Masoud Emamy
Introduction
Aluminum alloys, specially 2xxx series, have a wide application in aircraft industry because of their high strength per weight ratio in comparison with steel and titanium alloys.
Several research works related to applying the SIMA process on 2XXX aluminum alloys have been already carried out.
The aim of the current research is investigating the effect of SIMA process on Ti added Al2014 Al alloy.
Ghanbari: Journal of Alloys and Compounds Vol. 508 (2010), pp 315–319
Khomamizadeh: Journal of Alloys and Compounds Vol. 509 (2011), pp 1567–1572
Several research works related to applying the SIMA process on 2XXX aluminum alloys have been already carried out.
The aim of the current research is investigating the effect of SIMA process on Ti added Al2014 Al alloy.
Ghanbari: Journal of Alloys and Compounds Vol. 508 (2010), pp 315–319
Khomamizadeh: Journal of Alloys and Compounds Vol. 509 (2011), pp 1567–1572
Online since: February 2008
Authors: Claudio Shyinti Kiminami, Santiago Suriñach, Maria Dolores Baró, Walter José Botta Filho, C. Triveño Rios, Claudemiro Bolfarini
Further heating at increasing temperatures resulted in
complete crystallization with α-Al and intermetallic compounds.
A series of investigations on the formation and fundamental properties of Al-TM-RE amorphous alloys were carried out with the aim of developing high-strength materials with good ductility and high corrosion resistance [5,6].
Baró, Journal of Alloys and Compounds, 368 (2004) 164
Christian (Ed.), The Theory of Transformations in Metals and Alloys, Pergamon, London, 1981
Chan, Journal of Alloys and Compounds, 364 (2004) 146.
A series of investigations on the formation and fundamental properties of Al-TM-RE amorphous alloys were carried out with the aim of developing high-strength materials with good ductility and high corrosion resistance [5,6].
Baró, Journal of Alloys and Compounds, 368 (2004) 164
Christian (Ed.), The Theory of Transformations in Metals and Alloys, Pergamon, London, 1981
Chan, Journal of Alloys and Compounds, 364 (2004) 146.
Online since: August 2013
Authors: Hong Chao Kou, Jin Shan Li, Xian Lin Meng, Xian Sheng Qi, Wen Bin Li, Chuan Yun Wang, Ying Hao Wang
Table 1 The chemical compositions of high Nb containing TiAl alloy (at.%) used in present work
Ti
Al
Nb
W
Y
TiAl
Bal
42
8
0.2
0.1
Fig.1 1/4 cross-section of forged high Nb containing TiAl alloy
Fig.2 Microstructure of different sections in forged alloy: (a) section 1; (b) section 2; (c) section 3
In order to investigate the influence of the near lamellar microstructure and full lamellar microstructure on the bonding interface, the TiAl specimens from section 3 are treated under condition of 1280℃/1.5h and 1280℃/2h to obtain the aimed microstructures, respectively.
Li: Journal of Alloys and Compounds Vol. 466 (2008), p. 363 [2] X.
Ni: Journal of Alloys and Compounds Vol. 509 (2011), p. 7324 [11] Z.
Huang: Journal of materials engineering and performance Vol. 21 (2012), p. 33 [16] S.
Vieira: Journal of materials engineering and performance Vol. (2012), p. 1 [17] Y.Y.Z.W.C.
Li: Journal of Alloys and Compounds Vol. 466 (2008), p. 363 [2] X.
Ni: Journal of Alloys and Compounds Vol. 509 (2011), p. 7324 [11] Z.
Huang: Journal of materials engineering and performance Vol. 21 (2012), p. 33 [16] S.
Vieira: Journal of materials engineering and performance Vol. (2012), p. 1 [17] Y.Y.Z.W.C.
Online since: November 2023
Authors: L.H. Manjunath, Bincy Rose Vergis, Krishnakant Bhole, N.R. Thyagaraj, M. Ravi Kumar
These alloys are typically used in the automobile and aero-space industry.
Another study done by Chen et.al [2] used laser direct metal deposition to manufacture Al alloys.
As seen, there is a gap in research on the direct metal laser sintering process of Al alloys.
Al alloys are the most used material in the SLM research.
[9] Xuanming Cai, Chenglong Pan, Junyuan Wang, Wei Zhang, Zhiqiang Fan, Yubo Gao, Peng Xu, Heyang Sun, Jun Li, Wenshu Yang (2022)” Mechanical behavior, damage mode and mechanism of AlSi10Mg porous structure manufactured by selective laser melting,Journal of Alloys, and Compounds-Volume8972022162933, https://doi.org/10.1016/j.jallcom.2021. 162933
Another study done by Chen et.al [2] used laser direct metal deposition to manufacture Al alloys.
As seen, there is a gap in research on the direct metal laser sintering process of Al alloys.
Al alloys are the most used material in the SLM research.
[9] Xuanming Cai, Chenglong Pan, Junyuan Wang, Wei Zhang, Zhiqiang Fan, Yubo Gao, Peng Xu, Heyang Sun, Jun Li, Wenshu Yang (2022)” Mechanical behavior, damage mode and mechanism of AlSi10Mg porous structure manufactured by selective laser melting,Journal of Alloys, and Compounds-Volume8972022162933, https://doi.org/10.1016/j.jallcom.2021. 162933
Online since: February 2007
Authors: Mária Svéda, Kinga Tomolya, Viktória Rontó, B. Molnár, F. Varga, Erzsebet Nagy
Alloy Phase
Cu-Co-Ni-Be αCu, (CuCoNi)Be (γ) - complex compound
Cu-2Be-Ni αCu, (CuNi)Be (γ) - complex compound
Cu-2Ni-Be αCu, (NiCu)Be (γ) - complex compound
a) Cu-2Be-Ni, 850 - 300 - 9, 10 mm from b) Cu-2Ni-Be, 975 - 450 - 9, 40 mm from
the quenched end the quenched end
Fig. 5.: Microstructure of Cu-alloys after precipitation hardening.
4.
Discussion The aim of the applied heat treatments was to increase hardness and electrical conductivity of different Cu-alloy samples.
Robinson: Journal of Mat.
Smoljan: Journal of Mat.
Molnár: Journal of Mat.
Discussion The aim of the applied heat treatments was to increase hardness and electrical conductivity of different Cu-alloy samples.
Robinson: Journal of Mat.
Smoljan: Journal of Mat.
Molnár: Journal of Mat.
Online since: October 2018
Authors: Wafaa A. Ghanem, Ghalia A. Gaber, Maamoun A. Maamoun
The aim of this article describes the application of green tea aqueous extract as an eco-friendly corrosion inhibitor for two Cu-Ni alloys in 3.5% NaCl solution.
This is because that these compounds are non- toxic, biodegradable, relatively cheap and completely soluble in aqueous media and produced with high purity at low-cost [12, 13].
C for the Cu-Ni alloys with the addition of different inhibitor in 3.5 % NaCl solution from the potentiodynamic and EIS methods are linear plots, indicating that the adsorption of these compounds followed Langmuir adsorption isotherms.
Therefore, the future studies can be focused on the development of polymeric compounds used as self- healing or production of new natural corrosion inhibitors.
Silva, Journal of Corrosion, Vol. 53, pp. 16-25, (1997)
This is because that these compounds are non- toxic, biodegradable, relatively cheap and completely soluble in aqueous media and produced with high purity at low-cost [12, 13].
C for the Cu-Ni alloys with the addition of different inhibitor in 3.5 % NaCl solution from the potentiodynamic and EIS methods are linear plots, indicating that the adsorption of these compounds followed Langmuir adsorption isotherms.
Therefore, the future studies can be focused on the development of polymeric compounds used as self- healing or production of new natural corrosion inhibitors.
Silva, Journal of Corrosion, Vol. 53, pp. 16-25, (1997)
Online since: June 2025
Authors: Zoltan Major, Miriam Leibetseder, Michael Lackner, Andreas Kapshammer, Tamás Mankovits
Consequently,
scientific research on hail impact events, whether occurring during flight or while the aircraft is on
the ground, has primarily focused on high-performance metal alloys, unidirectional laminates, and
sandwich structures from a materials science perspective [1, 2, 3, 4, 5, 6].
A interesting type of material class used in aforementioned applications, are sheet molding compounds (SMCs).
As indicated by the name, sheet molding compounds are provided in the form of sheets.
The latter resulted in only small, localized damage regions and underestimates the detrimental effects of a hail impact loading situation on sheet molding compounds.
Li, Experimental and numerical study on the high-velocity hail impact performance of carbon fiber aluminum alloy laminates, International Journal of Impact Engineering 179 (2023) 104664. doi:10.1016/j.ijimpeng.2023.104664
A interesting type of material class used in aforementioned applications, are sheet molding compounds (SMCs).
As indicated by the name, sheet molding compounds are provided in the form of sheets.
The latter resulted in only small, localized damage regions and underestimates the detrimental effects of a hail impact loading situation on sheet molding compounds.
Li, Experimental and numerical study on the high-velocity hail impact performance of carbon fiber aluminum alloy laminates, International Journal of Impact Engineering 179 (2023) 104664. doi:10.1016/j.ijimpeng.2023.104664