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Journal articles on the topic 'Pure Aluminum'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Wongpreedee, Kageeporn, Panphot Ruethaitananon, and Tawinun Isariyamateekun. "Interface Layers of Ag-Al Fusing Metals by Casting Processes." Advanced Materials Research 787 (September 2013): 341–45. http://dx.doi.org/10.4028/www.scientific.net/amr.787.341.

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The materials of fusing metals commercially used in the jewelry niche marketing is seen as precious metals. An innovation of fusing metals searched for new materials to differentiate from the markets for mass production. In this research, it studied the bonding processes of silver and aluminium metals by casting processes for mass productions. The studies had been varied parameters on the types of aluminium and process temperature controls. This research had used two types of aluminium which were pure aluminium 99.99% and aluminum 5083 alloys bonding with pure silver 99.99%. The temperatures had been specified for two factors including casting temperature at X1, X2 and flasking temperature at Y1, Y2. From the results, it was found that the casting temperature at 730°C and the flasking temperature at 230 °C of pure silver-aluminum 5083 alloys bonding had the thinnest average thickness of interface at 427.29 μm. The microstructure of pure silver-aluminum 5083 alloy bonding was revealed eutectic-like structures at the interfaces. The EDS analysis showed the results of compounds at interface layers of Ag sides giving Ag2Al intermetallics on pure silver-aluminum 5083 alloy bonding unlike pure silver-pure aluminium bonding giving Ag3Al intermetallics.

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2

Ichikawa, Junichi, Tatsuro Hayashida, and Shinsuke Suzuki. "Compressive Properties of Porous Aluminum Alloy Fabricated by Joining Pipes and Melt through Continuous Casting." Materials Science Forum 761 (July 2013): 151–55. http://dx.doi.org/10.4028/www.scientific.net/msf.761.151.

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A porous aluminum alloy was fabricated by joining pure aluminum pipes and Al-13mass% Si melt through continuous casting. Compressive tests were carried out with test specimens of the porous aluminum alloy fabricated by this method, non-porous aluminum alloy fabricated by continuous casting using Al-Si melt, and porous aluminum alloy consisting of only Al-Si fabricated by drilling non-porous Al-Si bar. From the compressive tests, it was confirmed that specific proof strength of the porous aluminum alloy fabricated by joining pipes and melt can be described by rule of mixture of Al-Si base metal, pure aluminium pipes and pores.

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3

Ilyin, Alexander P., Liudmila O. Root, and Andrei V. Mostovshchikov. "Application of Aluminum Nanopowder for Pure Hydrogen Production." Key Engineering Materials 712 (September 2016): 261–66. http://dx.doi.org/10.4028/www.scientific.net/kem.712.261.

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The problems of hydrogen energetic as well as a method of high pure hydrogen obtaining are presented in the paper. It was suggested to use the reaction of aluminium nanopowder with water, as the reaction proceeds with high rate even at ambient conditions (the rate of hydrogen emission reached 18 ml/(s∙g)) and high degree of conversion (up to 100 %). The unreasonableness of the replacement of aluminium nanopowder to coarse-grained powder in this reaction due to the low efficiency is shown in the article. As a solution for pure hydrogen obtaining, a phenomenon of self-heating of aluminum nanoparticles and the resulting hydrogen, as well as the effect of its high-temperature diffusion through the membrane of ultrahigh molecular weight polyethylene were used.

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4

Jorcin, Jean-Baptiste, Christine Blanc, Nadine Pébère, Bernard Tribollet, and Vincent Vivier. "Galvanic Coupling Between Pure Copper and Pure Aluminum." Journal of The Electrochemical Society 155, no. 1 (2008): C46. http://dx.doi.org/10.1149/1.2803506.

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5

Wang, Hai Chuan, Dan Liu, Zhi You Liao, Ming Li, Jie Lie, Gui Wang, and Matthew S. Dargusch. "Effect of Ultrasonic Power on the Microstructure and Hardness of Commercially Pure Aluminum." Advanced Materials Research 194-196 (February 2011): 1192–96. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.1192.

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Molten, commercially pure aluminum has been treated ultrasonically with differing input power. The results show that the ultrasonic power can significantly refine the microstructure of the aluminium and increase the hardness of the samples. A mathematical model developed in this paper can predict the effect of the ultrasonic power on the grain size of the pure aluminium well.

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6

OHNISHI, Tadakazu. "Hydrogen in pure aluminum and in aluminum alloys." Journal of Japan Institute of Light Metals 39, no. 3 (1989): 235–51. http://dx.doi.org/10.2464/jilm.39.235.

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7

TANAKA, Takakazu. "Impurities in commercial pure aluminum." Journal of Japan Institute of Light Metals 36, no. 5 (1986): 253–54. http://dx.doi.org/10.2464/jilm.36.253.

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8

Kucharčík, L., M. Brůna, and A. Sládek. "Influence of Chemical Composition on Porosity in Aluminium Alloys." Archives of Foundry Engineering 14, no. 2 (June 1, 2014): 5–8. http://dx.doi.org/10.2478/afe-2014-0026.

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Abstract Porosity is one of the major defects in aluminum castings, which results is a decrease of a mechanical properties. Porosity in aluminum alloys is caused by solidification shrinkage and gas segregation. The final amount of porosity in aluminium castings is mostly influenced by several factors, as amount of hydrogen in molten aluminium alloy, cooling rate, melt temperature, mold material, or solidification interval. This article deals with effect of chemical composition on porosity in Al-Si aluminum alloys. For experiment was used Pure aluminum and four alloys: AlSi6Cu4, AlSi7Mg0, 3, AlSi9Cu1, AlSi10MgCu1.

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9

Millogo, Myriam, Stéphane Bernard, and Philippe Gillard. "Combustion characteristics of pure aluminum and aluminum alloys powders." Journal of Loss Prevention in the Process Industries 68 (November 2020): 104270. http://dx.doi.org/10.1016/j.jlp.2020.104270.

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10

Bainbridge, Ian Frank, and John Andrew Taylor. "The Surface Tension of Pure Aluminum and Aluminum Alloys." Metallurgical and Materials Transactions A 44, no. 8 (March 16, 2013): 3901–9. http://dx.doi.org/10.1007/s11661-013-1696-9.

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11

Misra, E., N. D. Theodore, J. W. Mayer, and T. L. Alford. "Failure mechanisms of pure silver, pure aluminum and silver–aluminum alloy under high current stress." Microelectronics Reliability 46, no. 12 (December 2006): 2096–103. http://dx.doi.org/10.1016/j.microrel.2006.01.011.

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12

NAKAYAMA, Noboru, Ryusuke MOCHIZUKI, and Kazuki SAWAMOTO. "Formation of Porous Aluminum Solidified by Chemical Reaction of Pure Aluminum Powder and Pure Water." TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 79, no. 802 (2013): 827–37. http://dx.doi.org/10.1299/kikaia.79.827.

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13

Shen, Yang, Yu Zhong Ruan, Yan Yu, and Yun Hong Zheng. "Synthesis of Aluminium Titanate Ceramics from Waste Sludge of Aluminium Factory." Key Engineering Materials 368-372 (February 2008): 1538–40. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1538.

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Aluminium titanate was synthesized using waste aluminium sludge and chemical pure TiO2 powder as raw materials. Effect of different compositions on crystal structure and contents of target product was discussed. XRD results showed that four crystal phases, aluminium titanate, perovskite, rutile and aluminum oxide, are formed in the sintered samples. The content of aluminium titanate increases first and then decreases with the decrease of the content of waste aluminum sludge. When the content of the sludge is 65.52wt%, the content of aluminium titanate reaches the maximum of 86.1wt%.

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14

IGUCHI, Nobuhiro, and Kazutomo ASAMI. "Recovery-dynamic superplasticity in pure aluminum." Journal of Japan Institute of Light Metals 35, no. 9 (1985): 507–11. http://dx.doi.org/10.2464/jilm.35.507.

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15

ISHII, Katsuya, Ryota OZAKI, Kenji KANEKO, and Masataka MASUDA. "Aluminum corrosion in deaerated pure water." Journal of Japan Institute of Light Metals 56, no. 2 (2006): 82–87. http://dx.doi.org/10.2464/jilm.56.82.

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16

Kalazhokov, Kh Kh, Z. Kh Kalazhokov, and Kh B. Khokonov. "Surface tension of pure aluminum melt." Technical Physics 48, no. 2 (February 2003): 272–73. http://dx.doi.org/10.1134/1.1553575.

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17

IMAMURA, Shinjirou, Hiroshi FUSE, and Toshio HAGA. "Die-casting of pure aluminum alloy." Proceedings of the Materials and processing conference 2019.27 (2019): P10. http://dx.doi.org/10.1299/jsmemp.2019.27.p10.

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18

Skjerpe, Per. "Intermetallic phases in commercial pure aluminum." Ultramicroscopy 17, no. 2 (January 1985): 180. http://dx.doi.org/10.1016/0304-3991(85)90059-2.

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19

Chengzhou, Ji, Ning Xiaoguang, Wang Anmin, and Yang Jianhua. "Yttrium ion implantation in pure aluminum." Surface and Coatings Technology 66, no. 1-3 (August 1994): 240–44. http://dx.doi.org/10.1016/0257-8972(94)90004-3.

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20

Badirujjaman, S., and M. Winning. "Cyclic deformation of pure aluminum bicrystals." Metallurgical and Materials Transactions A 36, no. 11 (November 2005): 2905–12. http://dx.doi.org/10.1007/s11661-005-0063-x.

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21

Ambaryan, G. N., M. S. Vlaskin, E. I. Shkolnikov, and A. Z. Zhuk. "Technology for High Pure Aluminum Oxide Production from Aluminum Scrap." IOP Conference Series: Materials Science and Engineering 250 (October 2017): 012044. http://dx.doi.org/10.1088/1757-899x/250/1/012044.

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22

Najib Khan, Abdul Shafiq Khan A., Nur Ezzah Faezah Othman, Hadi Purwanto, Hafasihah Abdul Halim, and Ahmad Firdaus Shamsul Baharin. "Synthetic of Pure Alumina from Aluminum Scrap." Advanced Materials Research 1115 (July 2015): 170–73. http://dx.doi.org/10.4028/www.scientific.net/amr.1115.170.

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Abundance in aluminum scrap metals can cause problem such as limited space allocation and pollution. The solution to solve these problems were by recycling the aluminum scrap metal as secondary production of aluminum. Among the recycling process alternative is smelting, However, the process consumes high energy with low productivity. This study focuses on alumina production from aluminum scrap waste. Dissolution process of Al scrap with 0.5M sodium hydroxide (NaOH) yields Al (OH)3and hydrogen gas. Results show that the temperature gradually decreased from 40°C to 35.7°C as the reaction took place. The pH of the solution during dissolution process increased from 12.08 to 12.38. The XRD results show that after calcination of Al (OH)3powders at 1500°C, α-Al2O3peaks could be observed. SEM morphology shows that the calcination process changes the Al (OH)3powders from hexagonal shape to form α-Al2O3with rounded shape.

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23

ISHIBASHI, Yoichi, Shoji HIRAI, and Kazutoshi KAKITA. "Evaluation of Chemical Compositions as to Pure Iron and Pure Aluminum." Tetsu-to-Hagane 89, no. 9 (2003): 967–72. http://dx.doi.org/10.2355/tetsutohagane1955.89.9_967.

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24

Şenel, Mahmut Can, Mevlüt Gürbüz, and Erdem Koç. "Fabrication and characterization of aluminum hybrid composites reinforced with silicon nitride/graphene nanoplatelet binary particles." Journal of Composite Materials 53, no. 28-30 (May 29, 2019): 4043–54. http://dx.doi.org/10.1177/0021998319853329.

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In this study, pure aluminum was reinforced with pure silicon nitride (varying from 1 to 12 wt%), pure graphene nanoplatelets (changing from 0.1 to 0.5 wt%), and their hybrid form (silicon nitride/graphene nanoplatelets) by using powder metallurgy method. The results show that Vickers hardness increased to 57.5 ± 3 HV (Al-9Si3N4) and 57 ± 2.5 HV (Al-0.1GNPs) from 28 ± 2 HV (pure aluminum). Similarly, ultimate compressive strength of the pure silicon nitride and pure graphene nanoplatelet-reinforced aluminum composite was improved to 268 ± 6 MPa (Al-9Si3N4) and 138 ± 4 MPa (Al-0.5GNPs) from 106 ± 4 MPa (pure aluminum), respectively. Interestingly, the highest Vickers hardness, ultimate compressive strength, and ultimate tensile strength of aluminum-silicon nitride-graphene nanoplatelet hybrid composites were determined as 82 ± 3 HV (Al-9Si3N4-0.5GNPs), 334 ± 9 MPa (Al-9Si3N4-0.1GNPs), and 132 MPa (Al-9Si3N4-0.1GNPs), respectively. The Vickers hardness (for Al-9Si3N4-0.5GNPs), ultimate compressive strength (for Al-9Si3N4-0.1GNPs), and ultimate tensile strength (for Al-9Si3N4-0.1GNPs) improved ∼193%, ∼215%, and ∼47% when compared to pure Al, respectively. Above 9 wt% silicon nitride and 0.1 wt% graphene nanoplatelets content, an adverse effect was observed due to the agglomeration of silicon nitride and graphene nanoplatelets in aluminum matrix composites. Also, energy-dispersive X-ray and scanning electron microphotographs confirmed the presence of both silicon nitride and graphene nanoplatelets and uniformly distributed in the aluminum matrix.

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25

Zhang, Man, Yue Bin Lin, and Hai Lin Jiang. "Effect of Al on Zn-Al Filler Metal Wettability on Pure Aluminum Surface." Advanced Materials Research 750-752 (August 2013): 619–23. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.619.

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Zn-Al filler metal wettability tests were performed on pure aluminum surface. The test results show the spreading area of Zn-Al filler metal gets large on pure aluminum surface gradually with the increase of Al content in Zn-Al filler metal under the match of CsF-AlF3 flux. When Al content in the Zn-Al filler metal is 15 wt.%, the spreading area of 85Zn-15Al filler metal is biggest on pure aluminum surface. Accordingly, the dendritic eutectoid structure size is smaller near the interface between the Zn-Al filler metal and the pure aluminum base metal by metallographic analysis. When Al content in the Zn-Al filler metal exceeds 15wt.%, the spreading area of filler metal begins to become small. At the same time, the eutectoid structure presents circle shape near the interface between the Zn-Al filler metal and the pure aluminum base metal.

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26

Moon, Kyung Man, Mun Jin Nam, Yeon Chang Lee, Yun Hae Kim, and Jae Hyun Jeong. "Characteristics Evaluation of Coating Film by Thermal Spray in Seawater Solution." Advanced Materials Research 690-693 (May 2013): 2098–106. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2098.

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Many surface protection methods have been developed to apply to constructional steels to be used under severe corrosive environments. Thermal spray coating has been known to be an attractive technique due to its relatively high coating speed. However, the high corrosion resistance of coating films deposited by thermal spray method is increasingly required to expand its application. Four types of coated films (DFT: 200um), that is, pure zinc, pure aluminum, and two Al-Zn alloy (Al:Zn=85:15 and Al:Zn=95:5), were coated onto carbon steel (SS401) with arc spraying, and the corrosion behavior of their samples were evaluated by the electrochemical method in this study. The pure aluminum sample had the best corrosion resistance when exposed to seawater solution and alloy (Al:Zn=85:15), so called galvalume and alloy (Al:Zn=95:5) samples followed the pure aluminum sample. The pure zinc sample ranked 4thin corrosion resistance in this study. Morphology of corroded surfaces of pure aluminum and alloy (Al:Zn=85:15) samples exhibited a general corrosion pattern, however, the patterns of intergranular and pitting corrosion were observed for the pure zinc and alloy (Al:Zn=95:5) samples respectively. Pure zinc sample had the smallest value of porosity ratio compared to other samples due to its heavier density. Keywords : Surface protection methods, Thermal spray, Corrosion resistance, Pure aluminum, Pure zinc, Porosity ratio

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27

San Marchi, C., Fahe Cao, M. Kouzeli, and A. Mortensen. "Quasistatic and dynamic compression of aluminum-oxide particle reinforced pure aluminum." Materials Science and Engineering: A 337, no. 1-2 (November 2002): 202–11. http://dx.doi.org/10.1016/s0921-5093(02)00035-7.

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28

Guan, X. S., H. Numakura, and M. Koiwa. "Internal Friction Peak in Cold-Worked "Pure" Aluminum and Aluminum Alloys." Le Journal de Physique IV 06, no. C8 (December 1996): C8–219—C8–222. http://dx.doi.org/10.1051/jp4:1996846.

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29

Qi, Jin Gang, Jian Zhong Wang, Bing Wang, Li Jia He, and Hui Ling Du. "Effects of Electric Pulse Modification with Different Technique Parameters on the Liquid Structure of Pure Aluminum." Advanced Materials Research 79-82 (August 2009): 203–6. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.203.

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The modification of liquid metal by electric pulse (EP, EPM) is a novel method for grain refinement. In this study, based on the reported structural heredity of EP-modified liquid aluminium, the structure tests of EP-modified liquid aluminium with different technique parameters were conducted by using high temperature X-ray diffractometer. The results show that the quantitative structure changes of EP-modified liquid aluminium have a close relationship with the modifying time and modifying temperature. The decrease of modifying time could result in an obvious weaker principal peak in structure factor curve compared with the optimal EP technique parameters, but a slight increase of coordination number (Ns), correlation radius (rc) and average atom number per cluster (Nat) is still observed under this condition. These facts indicate that the EP-modified liquid aluminum could gain an increasing order degree, and thus have an advantage during the formation of a stable nucleus, eventually leading to a grain-refining solidification structure. On the other hand, the structure factor curve of EP-modified liquid aluminum at the high modifying temperature of 850°C tends to be overlapped with that of the unmodified during the principal peak range. In this case, the competition result between the EP strengthening effect and the destruction of superheating would determine the final structure of EP-modified liquid aluminum.

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30

K.S, Ratih Ponco, Erwin Siahaan, and Steven Darmawan. "PENGARUH UNSUR SILIKON PADA ALUMINIUM ALLOY (Al – Si) TERHADAP SIFAT MEKANIS DAN STRUKTUR MIKRO." POROS 14, no. 1 (September 8, 2017): 49. http://dx.doi.org/10.24912/poros.v14i1.831.

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Abstract: PENGARUH UNSUR SILIKON PADA ALUMINIUM ALLOY (Al – Si) TERHADAP SIFAT MEKANIS DAN STRUKTUR MIKRO Ratih Ponco K.S., Erwin Siahaan dan Steven Darmawan Jurusan Teknik Mesin, Fakultas Teknik Universitas Tarumanagara Aluminum is one of type in material non-ferrous metals are frequently and widely used in fields of application in industry. One application that performed in the industrial world, namely Aluminum Silicon (AlSi) which are used for the motor piston components. To get better mechanical properties then the integration of Aluminum Silicon research done by arranging the variety of Si element content on a percentage of 6, 8, and 10% Si.Testing is done by using a blend of 10% genuine with further lowering the Si content to reach 6% and 8% by adding pure aluminum. The test showed that the level of harness decreased 12,5% and also the ability of toughness decreased by 4%. Observation show that the microstructure is relatively homogeneous and there is a dominant form of micro-structure of pure Al and several dendrites CuAl.

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31

Tanaka, Yasuhiko, Takeshi Goto, and Yoshimi Watanabe. "Graded Microstructure at Fiber / Copper Matrix Interface in FRM Fabricated by the Reaction at Narrow Holes Method." Materials Science Forum 492-493 (August 2005): 737–42. http://dx.doi.org/10.4028/www.scientific.net/msf.492-493.737.

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The reaction at narrow holes method (RANH method) has been proposed for fabricating fiber reinforced metal (FRM), such as an intermetallic compound fiber / metal matrix composite. This study clarifies a microstructure at a fiber / metal matrix interface of FRM fabricated by using a combination of pure-copper and pure-aluminum in the RANH method. Pure-aluminum fiber was inserted into a narrow hole drilled in the copper matrix. The assembly comprising the pure-aluminum fiber and the pure-copper matrix was heated to a temperature greater than eutectic temperature of the copper-aluminum binary alloy. A molten aluminum reacted with copper to form an annular reacted region consisting of g1 intermetallic compound in a single phase near the edge of the narrow hole. The g1 intermetallic compound has very high hardness on the order of 800-900 HV. The annular reacted region may have a high tensile strength and may work as a reinforcing metal fiber in FRM.

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32

Hangai, Yoshihiko, Tomoaki Morita, and Takao Utsunomiya. "Mechanical Properties of Functionally Graded Porous Aluminum Consisting of Pure Aluminum and Al-Mg-Si Aluminum Alloy." Key Engineering Materials 741 (June 2017): 1–6. http://dx.doi.org/10.4028/www.scientific.net/kem.741.1.

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Porous aluminum can potentially satisfy both the lightweight and high-energy-absorption properties required for automotive components. In this study, functionally graded porous aluminum consisting of pure aluminum and Al-Mg-Si A6061 aluminum alloy was fabricated by a sintering and dissolution process. It was found that functionally graded porous aluminum with the same pore structures but different types of aluminum alloy can be fabricated. By performing compression tests on the fabricated functionally graded porous aluminum, it was found that its stress-strain curve initially exhibited a relatively low plateau stress similar to that of uniform porous pure aluminum. Thereafter, the stress-strain curves exhibited a relatively high plateau stress similar to that of the uniform porous A6061 aluminum alloy. Namely, it was found that the compression properties of porous aluminum can be adjusted and optimized by selecting the appropriate type of aluminum alloy.

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33

Rusin, N. M., A. L. Skorentsev, and E. A. Kolubaev. "Dry friction of pure aluminum against steel." Journal of Friction and Wear 37, no. 1 (January 2016): 86–93. http://dx.doi.org/10.3103/s1068366616010141.

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34

Iwata, T., K. Kanazawa, and H. Ishimaru. "Photon stimulated gas desorption from pure aluminum." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 6, no. 3 (May 1988): 1297–99. http://dx.doi.org/10.1116/1.575692.

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35

Chen, Haiyan, Jian Cao, Xiaoyu Tian, Rui Li, and Jicai Feng. "Low-temperature diffusion bonding of pure aluminum." Applied Physics A 113, no. 1 (August 13, 2013): 101–4. http://dx.doi.org/10.1007/s00339-013-7860-7.

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36

Allen, C., and Q. Han. "Grain Refinement of Pure Aluminum Using Ultrasonics." International Journal of Metalcasting 5, no. 1 (January 2011): 69–70. http://dx.doi.org/10.1007/bf03355511.

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37

Huang, Bei, Jian Min Zeng, Li Hua Liang, Wu Kui Gan, and Jin Bo Lu. "Study on Hydrogen Content of Solid Industrial Pure Aluminum." Applied Mechanics and Materials 633-634 (September 2014): 129–32. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.129.

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The hydrogen contents of molten aluminum solidifying in various molds were tested by the use of the G4 Phoenix DH and the samples of microstructure were analyzed under the optical microscope (OM). The results show that the hydrogen contents of solid aluminum decreases with the decreasing cooling rate. However, when molten aluminum solidifies in the adiabatic mold, the hydrogen content has a slight increase because of long time of exposure to the air. In addition, the microstructure of casting pure aluminum is refined with increasing cooling rate.

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38

Kadoi, Kota, Norbert Babcsán, and Hideo Nakae. "Role of Oxide Particles in Aluminum Melt toward Aluminum Foam Fabrication by the Melt Route." Materials Science Forum 649 (May 2010): 385–90. http://dx.doi.org/10.4028/www.scientific.net/msf.649.385.

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The aim of this work is to elucidate the role and contribution of oxide particles to aluminum foam fabrication. The melts were internally oxidized by a thickening process in which pure aluminum melt was stirred with or without the addition of 1.5 wt.% calcium for maximum 25 min. After this, each thickened samples were melted again and mixed for 100 s by introducing 1.5 wt.% TiH2 as a blowing agent. In order to investigate the foam evolution, the foam samples were hold in the furnace for 50 to 500 s. The stirring torque (viscosity) of the calcium containing melt increases with thickening time and achieves the stationary value after 17 min. However, the torque of pure aluminum melt does not change during stirring. Oxides have been found on the microstructures of both stirred samples, although the content of oxides of calcium added sample is significantly more than that of pure aluminum. SEM observation results of samples thickened by calcium addition show that the melt contains calcium oxide and Al4Ca in addition to equiaxed aluminum, and the morphology of formed oxide is not granulous but wrinkled bifilm containing calcium and aluminum oxides. The oxides formed in the pure Al melt has less effect on the viscosity thus the foamability of the aluminum melt. It is found that the calcium oxides formed by stirring are responsible for the effective increase of melt viscosity. The foams using oxidized pure Al melt have dense layer at the bottom caused by drainage and coarse foam structure due to strong coalescence. In case of the Al-Ca alloy, uniform pore distribution, lack of the dense layer and homogeneous time dependent increase of the cell size were observed. Besides, the sample held for longer time has thicker cell wall at the bottom compared with that at the top. We confirmed that the oxide bifilms of Al and Ca contributes to decreased drainage rate and coalescence, namely stabilization. The insufficient amount of oxide particles in pure aluminum is the reason for the lack of stabile foam (significant drainage) in that case.

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39

Shi, Tong, Xiang Chen, Ying Cheng, Yuan Liu, Huawei Zhang, and Yanxiang Li. "Microstructure and Compressive Properties of Aluminum Foams Made by 6063 Aluminum Alloy and Pure Aluminum." MATERIALS TRANSACTIONS 59, no. 4 (2018): 625–33. http://dx.doi.org/10.2320/matertrans.m2017300.

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40

Indejtsev, D. A., and E. V. Osipova. "Formation of surface layer of hydrogen in pure aluminum." Доклады Академии наук 484, no. 1 (May 1, 2019): 56–60. http://dx.doi.org/10.31857/s0869-5652484156-60.

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41

MOON, KYUNG-MAN, YUN-HAE KIM, MIN-SEOK OH, DONG-HYUN PARK, and JONG-PIL WON. "OBSERVATION OF THE CORROSION CHARACTERISTICS OF METALIZING FILM IN SEAWATER SOLUTION." International Journal of Modern Physics B 25, no. 31 (December 20, 2011): 4241–44. http://dx.doi.org/10.1142/s0217979211066672.

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Four types of coated films (DFT: 300um), that is pure zinc, pure aluminum, and two Al - Zn alloy ( Al : Zn =85:15 and Al : Zn =95:5), were coated onto carbon steel (SS401) with arc spraying, and the corrosion behavior of their samples were evaluated by the electrochemical method in this study. The pure aluminum sample had the high corrosion resistance when exposed to seawater solution and pure zinc and alloy ( Al : Zn =95:5) samples followed the pure aluminum sample. The other alloy ( Al : Zn =85:15), the so-called galvalume that was coated onto the carbon steel, ranked 4th in corrosion resistance in this study. The results of the porosity ratio of those samples are well matched with the electrochemical data

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42

Zhang, Yue, Jin Qiang Liu, Jing Tao Wang, Zhi Bin Wu, and Fan Liu. "Microstructures and Mechanical Properties of Fcc Pure Metals with Different Stacking Fault Energies by Equal Channel Angular Pressing." Materials Science Forum 682 (March 2011): 193–203. http://dx.doi.org/10.4028/www.scientific.net/msf.682.193.

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In the present work 99.98% commercial pure copper, 99.5% commercial pure nickel and 99.5% commercial pure aluminum were imposed on high strain levels of ~24, ~8 and ~44 by equal channel angular pressing (ECAP) via route Bc, respectively. Microstructures and mechanical properties are investigated by TEM observations, tensile tests and microhardness tests. It shows that grain sizes of pure copper, pure nickel and pure aluminum has been severed refined from several tens of microns into several hundreds of nanometers after ECAP processing, however, microstructure of copper are mainly consisted of equiaxed (sub) grains with illegible grains/ (sub) grains boundaries after processed by ECAP, while it is featured as lamellar boundaries in that of pure nickel and as elongated grains in that of pure aluminum underwent a same strain level of ECAP. Results of mechanical properties show that yield strength and microhardness increase as strain increase up to a max value in copper, and then begin to decrease slightly, while mechanical properties of the other two increase as strain increases in nickel up to a strain level of ~12, and as in aluminum, yield strength and microhardness increase as strain increase in a relative low strain level, and then reach an saturation value.

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JOVANOVIĆ, Milan T., Nenad ILIĆ, Ivana CVIJOVIĆ-ALAGIĆ, Vesna MAKSIMOVIĆ, and Slavica ZEC. "Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils." Transactions of Nonferrous Metals Society of China 27, no. 9 (September 2017): 1907–19. http://dx.doi.org/10.1016/s1003-6326(17)60215-2.

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44

Ding, Wan Wu, Xin Zhao, Fu Liang Zhu, Tian Dong Xia, and Wen Jun Zhao. "Effect of Cooling Velocity and Casting Temperature on Solidification Microstructure of Pure Al Refinement under Al-5Ti-B Alloy." Applied Mechanics and Materials 477-478 (December 2013): 1316–20. http://dx.doi.org/10.4028/www.scientific.net/amm.477-478.1316.

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The texture feature and grain refinement effect of Al-5Ti-B alloy on pure aluminum were analyzed and by adjusting the cooling velocity and casting temperature of molten aluminum,the influence of Al-5Ti-B alloy on solidification microstructure of pure aluminum was studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM), optical microscopy (OM) and other experimental methods. The results show that: Al-5Ti-B alloy is composed of Al, TiAl3 and TiB2. under the same solidified velocity,with the increase of the mass fraction of Al-5Ti-B alloy among the aluminum melt, solidification structure of pure aluminum equiaxed dendrite size small. But at the same additives of Al-5Ti-B alloy, the cooling rate and casting temperature have significant effects on the number and size of equiaxial crystal. Faster cooling rate and lower casting temperature of molten aluminum are favorable for the formation of thin equiaxial crystal of solidification microstructure.

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45

Tsukamoto, H., Yoshiki Komiya, N. Oshima, H. Sato, and Y. Watanabe. "Microstructure Refinement of Pure Aluminum by Inoculation with Stainless Steel Powders." Applied Mechanics and Materials 421 (September 2013): 272–76. http://dx.doi.org/10.4028/www.scientific.net/amm.421.272.

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The aim of this study is to investigate efficiency of stainless steel powder inoculation into pure aluminum for microstructure refinement. Refiners consisting of pure aluminum powder (powder size: 106~180m) and stainless steel powder (powder size: 25~53m) have been fabricated through spark plasma sintering (SPS). The stainless steels used in the study include SUS304L, SUS316L and SUS434L. SUS 304L powder has achieved a great grain refinement in cast aluminum, for which fading phenomenon has been considerably avoided. SUS316L and SUS434L powders develop fine dendrite structures, which can lead to high hardness of cast aluminum.

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MOTOI, Tetsuya, Kiyoshi FUKUOKA, and Hideo YOSHIDA. "Nodularization of .ALPHA.-AlFeSi compounds in pure aluminum." Journal of Japan Institute of Light Metals 48, no. 12 (1998): 624–28. http://dx.doi.org/10.2464/jilm.48.624.

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Wu, G. H., Z. Y. Dou, D. L. Sun, L. T. Jiang, B. S. Ding, and B. F. He. "Compression behaviors of cenosphere–pure aluminum syntactic foams." Scripta Materialia 56, no. 3 (February 2007): 221–24. http://dx.doi.org/10.1016/j.scriptamat.2006.10.008.

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Yang, L., M. Xia, and J. G. Li. "Epitaxial growth in heterogeneous nucleation of pure aluminum." Materials Letters 132 (October 2014): 52–54. http://dx.doi.org/10.1016/j.matlet.2014.06.051.

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Ogata, S. "Ideal Pure Shear Strength of Aluminum and Copper." Science 298, no. 5594 (October 25, 2002): 807–11. http://dx.doi.org/10.1126/science.1076652.

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Guan, Wan-Bing, Yu-Lai Gao, Qi-Jie Zhai, and Kuang-Di Xu. "Undercooling of droplet solidification for molten pure aluminum." Materials Letters 59, no. 13 (June 2005): 1701–4. http://dx.doi.org/10.1016/j.matlet.2005.01.055.

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