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Journal articles on the topic 'Aluminum bronze'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Mironov, A. E., I. S. Gershman, E. I. Gershman, S. M. Zakharov, and P. A. Podrabinnik. "Aluminum casting antifriction alloys with increased capacity to adaptability of friction surfaces." Vestnik of the Railway Research Institute 76, no. 6 (December 28, 2017): 336–40. http://dx.doi.org/10.21780/2223-9731-2017-76-6-336-340.

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The possibility of changing bronze in the manufacture of monometallic cast plain bearings with multicomponent aluminum antifriction alloys is considered. Due to alloying of aluminum with tin, lead, copper, zinc, silicon, magnesium and titanium, it was possible to create alloys with increased ability to adapt friction surfaces. According to laboratory tests, the main results of which are given in the article, it is proved that aluminum alloys on a complex of mechanical and tribotechnical properties are close or superior to the investigated bronze BrO4C4S17. Laboratory tests have shown the possibility of manufacturing monometallic plain bearings from experimental cast aluminum alloys, which by mechanical properties are not inferior to the most solid among antifriction bronzes - bronze BrO4C4S17. On a complex of tribotechnical properties, experimental alloys exceed bronze. Due to their high-fusibility, lower density, lower cost and better workability, aluminum alloys have an almost 3-5-fold advantage over economic indicators before tin bronzes. The scope of the proposed alloys will be determined in the course of bench and operational tests. To date, an experimental batch of monometallic bearings of turbochargers TK 33N-02 has been manufactured from the alloy of the AO6S3M4CT series of “Spets Dizel Servis” (Novosibirsk), which successfully passed the bench tests. Bushings 3404.00.112, 3404.00.032 and bearings 3409.00.20, made from an experimental alloy, showed the possibility of replacing the standard bronze BrO8S12 in these turbochargers. It is advisable to carry out operational tests of bearing sleeves from the alloy AO6S3M4CT for turbochargers TK 34, TK 30 and TK 33, as well as bearing inserts for diesel locomotives.

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2

Yang, Qi, Shun Huang, Jin Tian Chen, Guang Zhi He, and Guo Zheng Yan. "The Preparation of Aluminum-Bronze/Steel Duplex Metal by Loose Sintering." Advanced Materials Research 311-313 (August 2011): 160–64. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.160.

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Aluminum-bronze/steel duplex metal has been prepared by aluminum-bronze powder whose compact oxide film was removed by dilute HCl solution before sintering. Scanning electronic microscope (SEM), energy spectrum analysis (EDS), density measurement and compression shear strength test were used to investigate the structure, composition, relative density and bond strength of aluminum-bronze/steel duplex metal. The results show: liquid phase could wet the aluminum-bronze powder washed by acid, improve sintering activity of the powder and increase bond strength of aluminum-bronze/steel interface. The relative density of sintered aluminum-bronze is 99.6%, and shear strength of aluminum-bronze/steel interface is 132.6MPa.

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3

Wang, Zhao Jun, Guang Ming Zhu, and Feng Shi Yin. "Study on the Microstructure of FeCrAl/Aluminum Bronze Composite Coatings Prepared by Supersonic Electric Arc-Spraying." Applied Mechanics and Materials 217-219 (November 2012): 1346–49. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1346.

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Abstract. FeCrAl/aluminum bronze composite coatings were prepared by supersonic electric arc-spraying. The microstructure of the composite coating was studied by using optical microscope (OM), scanning electron microscope (SEM). The results show that the FeCrAl and QAl7 aluminum bronze composite coatings have a typical layered structure which is composed of FeCrAl, QAl7 aluminum bronze flattened particles as well as alumina films between them. FeCrAl and QAl7 aluminum bronze flattened particles are distributed alternately and have a good combination btween each other.

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4

Zhang, Rong Hua, Biao Wu, and Xiao Ping Zheng. "Effect of Cryogenic Treatment on Compressive Properties of Aluminum Bronze." Applied Mechanics and Materials 508 (January 2014): 99–101. http://dx.doi.org/10.4028/www.scientific.net/amm.508.99.

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The microstructure, compressive fracture morphology and compressive strength of aluminum bronze before and after cryogenic treatment were observed and measured by OM, SEM and electron universal testing machine, and the effect of cryogenic treatment on compressive properties of aluminum bronze were investigated. The results show that cryogenic treatment can reduce the compressive strength of aluminum bronze, and after cryogenic treatment and at 600°C for 5min, its compressive strength is increased. And the microstructure of aluminum bronze has a good correspondence with its compressive strength.

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5

Hammad, A. E., M. Amin, M. Ragab, and Yasser M. R. AboelMagd. "Study The Properties of Sintered Al-Composites Matrix Reinforced With Nano-Al Oxide And/Or Carbon Nano Tubes." JOURNAL OF ADVANCES IN PHYSICS 14, no. 3 (October 3, 2018): 5741–52. http://dx.doi.org/10.24297/jap.v14i3.7602.

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The present work is concerned with studying the synthesis and characterization of hybrid aluminum bronze matrix strengthened with nano-aluminum oxide particles (n-Al2O3), and carbon nano tubes (CNTs). The selected matrix composite was successfully incorporated with different weighted percentages of CNTs (i.e. 1.0 and 2.0 wt.%) and/or n-Al2O3 (i.e. 1.0 and 2.0 wt.%) by sintering process. From the microstructure analysis, n- Al2O3 particles was dispersed uniformly and holding over the surface of aluminum bronze. Furthermore, some agglomeration was found due to reinforced CNTs into aluminum bronze matrix. From hardness tests, it was found that incorporated n- Al2O3 and CNTs into matrix increased the hardness of composites to be equal 230 HV, which is around 2.3 times higher than that of an aluminum bronze matrix. Moreover, the wear loss of CNTs - Al2O3/aluminum bronze composites diminished because of the impact of homogeneous circulation of CNTs in aluminum bronze and low corrosion coef?cient of uncovered CNTs on the well-used surface. Notable from the results, the electrical resistivity of the hybrid composites are lower than the matrix. Hopefully, the findings are expected to provide profound knowledge and further reference towards the studied composites of the miniaturised electronic package

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6

Just, P., and B. P. Pisarek. "Feeding and Cooling and Time of Thermal Treatment of a Massive Bush Made of the Complex Aluminum Bronze Cast by the Lost Foam." Archives of Foundry Engineering 14, no. 4 (December 1, 2014): 39–44. http://dx.doi.org/10.2478/afe-2014-0083.

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Abstract Small additions of Cr, Mo and W to aluminium-iron-nickel bronze are mostly located in phases κi (i=II; III; IV),and next in phase α (in the matrix) and phase γ2. They raise the temperature of the phase transformations in aluminium bronzes as well as the casts’ abrasive and adhesive wear resistance. The paper presents a selection of feeding elements and thermal treatment times which guarantees structure stability, for a cast of a massive bush working at an elevated temperature (650-750°C) made by means of the lost foam technology out of composite aluminium bronze. So far, there have been no analyses of the phenomena characteristic to the examined bronze which accompany the process of its solidification during gasification of the EPS pattern. There are also no guidelines for designing risers and steel internal chill for casts made of this bronze. The work identifies the type and location of the existing defects in the mould’s cast. It also proposes a solution to the manner of its feeding and cooling which compensates the significant volume contraction of bronze and effectively removes the formed gases from the area of mould solidification. Another important aspect of the performed research was establishing the duration time of bronze annealing at the temperature of 750°C which guarantees stabilization of the changes in the bronze microstructure - stabilization of the changes in the bronze HB hardness.

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7

Rossing, Thomas D., Deepak Gangadharan, Edward R. Mansell, and Jacob H. Malta. "Bass Handbells of Aluminum." MRS Bulletin 20, no. 3 (March 1995): 40–43. http://dx.doi.org/10.1557/s0883769400044407.

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Handbells have become very popular musical instruments, especially in schools and churches; about 40,000 hand-bell choirs have been reported in the United States alone. Tuned handbells are generally made of cast bronze, which has been the traditional bell material for many centuries.Demand for handbells of lower and lower pitches has led to the development of bass bells as low as G0 (fundamental frequency of 24.5 Hz). Unfortunately, these large bass bells radiate inefficiently, especially the bells made of bronze. This is because the speed of bending waves in these bells is considerably lower than the speed of sound in air, a condition known as “being below the coincidence frequency.”In order to obtain a higher radiation efficiency and thereby enhance the sound of bass bells, the Malmark Company has created a new bell design using aluminum rather than bronze. These bells are larger in diameter, and they have lower coincidence frequencies, both of which lead to more efficient radiation of bass notes. In addition, they are considerably lighter in weight, and thus are much more easily handled by bell ringers.In this article, the acoustical properties of two G1 handbells, one of aluminum and one of bronze, are compared. The aluminum handbell has a diameter of 48.5 cm, a height of 34 cm, and a wall thickness from 4 to 5 mm. The bronze bell has a diameter of 38.5 cm, a height of 28.5 cm, and a wall thickness from 3 to 4 mm.

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8

Li, Wen Sheng, and Yi Liu. "Effect of Ce on Wear Behavior of Plasma Spray Welded Novel Aluminum Bronze Coatings." Advanced Materials Research 418-420 (December 2011): 831–34. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.831.

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Aluminum bronze powders with free and 0.1wt%Ce were plasma spray welded on 45# carbon steel substrate, Effects of rare earth Ce on the microstructure and wear resistance of plasma spray welded novel aluminum bronze coatings were investigated. Tribological properties of coatings were tested on reciprocating sliding tester. Results showed that a small amount of Ce (0.1wt %) in novel aluminum bronze coating can refine the coating microstructure and the coating with 0.1wt%Ce process higher wear resistance compared to the Ce-free coating. Both of the coatings have different wear mechanisms.

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9

Dai, Qiu Lian, Can Bin Luo, and Fang Yi You. "Development of a New Type of Metal Matrix for Porous Metal Bonded Diamond Grinding Wheels." Advanced Materials Research 1035 (October 2014): 281–87. http://dx.doi.org/10.4028/www.scientific.net/amr.1035.281.

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In this paper, a new type of aluminum bronze was used to substitute for the traditional tin bronze as the bonding matrix of the porous diamond wheel. Effects of hot pressing sintering temperature, the amount of Al and Fe on the mechanical properties of aluminum bronze based bond were studied by means of orthogonal test. A new kind of pore inducer with spherical shape was chosen. Effects of pore inducer size and processing parameters on the pore morphology and the mechanical properties of the porous metal bonds and diamond composites were studied. Experimental results revealed that theTRSof the new type porous aluminum bronze based bond and diamond composites increased by 119% and 258% respectively compared to the traditional porous tin bronze based bond and diamond composites. Also, stronger bonding between the metal bond and diamond grits was observed.

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10

Karzhavin, V. V., L. T. Plaksina, V. V. Ilyushin, and B. A. Potekhin. "Frictional properties of aluminum bronze facings." Russian Engineering Research 30, no. 1 (January 2010): 26–30. http://dx.doi.org/10.3103/s1068798x10010077.

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11

Lipiński, Tomasz. "Aluminum bronze strengthening by heat treatment." Mechanik, no. 4 (April 2015): 326/38–326/42. http://dx.doi.org/10.17814/mechanik.2015.4.167.

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12

Higashi, K., T. Ohnishi, and Y. Nakatani. "Superplastic behavior of commercial aluminum bronze." Scripta Metallurgica 19, no. 7 (July 1985): 821–23. http://dx.doi.org/10.1016/0036-9748(85)90199-1.

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13

Nascimento, Maurício Silva, Givanildo Alves dos Santos, Rogério Teram, Vinícius Torres dos Santos, Márcio Rodrigues da Silva, and Antonio Augusto Couto. "Effects of Thermal Variables of Solidification on the Microstructure, Hardness, and Microhardness of Cu-Al-Ni-Fe Alloys." Materials 12, no. 8 (April 18, 2019): 1267. http://dx.doi.org/10.3390/ma12081267.

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Aluminum bronze is a complex group of copper-based alloys that may include up to 14% aluminum, but lower amounts of nickel and iron are also added, as they differently affect alloy characteristics such as strength, ductility, and corrosion resistance. The phase transformations of nickel aluminum–bronze alloys have been the subject of many studies due to the formations of intermetallics promoted by slow cooling. In the present investigation, quaternary systems of aluminum bronze alloys, specifically Cu–10wt%Al–5wt%Ni–5wt%Fe (hypoeutectoid bronze) and Cu–14wt%Al–5wt%Ni–5wi%Fe (hypereutectoid bronze), were directionally solidified upward under transient heat flow conditions. The experimental parameters measured included solidification thermal parameters such as the tip growth rate (VL) and cooling rate (TR), optical microscopy, scanning electron microscopy (SEM) analysis, hardness, and microhardness. We observed that the hardness and microhardness values vary according to the thermal parameters and solidification. We also observed that the Cu–14wt%Al–5wt%Ni–5wi%Fe alloy presented higher hardness values and a more refined structure than the Cu–10wt%Al–5wt%Ni–5wt%Fe alloy. SEM analysis proved the presence of specific intermetallics for each alloy.

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14

Aungsusiripong, Auchariya, Surasak Suranuntchai, and Vitoon Uthaisangsuk. "Constitutive Modeling of Flow Stress of MAB Alloy." Advanced Materials Research 1101 (April 2015): 442–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1101.442.

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In this work, plastic flow behavior of an as-cast manganese aluminum bronze was investigated under various compressive deformation conditions. The forming temperatures of 1023, 1073, 1123 and 1173 K and strain rates of 0.01, 0.1, 1.0 and 10 s-1 were considered. It was found that all obtained stress-strain responses of manganese aluminum bronze showed a single peak stress that afterwards approached a steady flow stress. Additionally, constitutive equations based on the Arrhenius model were applied for describing the determined flow stresses, in which Zener-Hollomon parameter in a hyperbolic-sine function was taken into account. By the flow stress modeling, the activation energy of about 194 kJ/mol was calculated for the examined manganese aluminum bronze.

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15

Mota, N. M., S. S. M. Tavares, A. M. do Nascimento, G. Zeeman, and M. V. Biezma-Moraleda. "Failure analysis of a butterfly valve made with nickel aluminum Bronze (NAB) and manganese aluminum Bronze (MAB)." Engineering Failure Analysis 129 (November 2021): 105732. http://dx.doi.org/10.1016/j.engfailanal.2021.105732.

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16

Qiu, S. W., L. Li, H. Wang, and Y. Wang. "Electrochemical Dissolution of Aluminum Bronze in CuSO4Electrolytes." Journal of The Electrochemical Society 164, no. 6 (2017): E123—E128. http://dx.doi.org/10.1149/2.0921706jes.

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17

Leong, Keng H., Peter A. Kirkham, and Kenneth C. Meinert. "Deep penetration welding of nickel–aluminum–bronze." Journal of Laser Applications 12, no. 5 (2000): 181. http://dx.doi.org/10.2351/1.1309550.

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18

Zagretdinov, Zinnur T., Nikolay N. Safronov, and Lenar R. Kharisov. "Getting Aluminum Bronze Castings with SHS-Cast." HELIX 9, no. 4 (August 31, 2019): 5191–96. http://dx.doi.org/10.29042/2019-5191-5196.

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19

Olszewski, Albert M. "Dealloying of a Nickel–Aluminum Bronze Impeller." Journal of Failure Analysis and Prevention 8, no. 6 (October 1, 2008): 505–8. http://dx.doi.org/10.1007/s11668-008-9181-2.

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20

Tzyy-Ping, Cheng, Lee Ju-Tung, and Tsai Wen-Ta. "Galvanic corrosion of titanium-coupled aluminum bronze." Materials Chemistry and Physics 36, no. 1-2 (November 1993): 156–60. http://dx.doi.org/10.1016/0254-0584(93)90025-h.

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21

Achiţei, Dragoş Cristian, Petrică Vizureanu, Alina Adriana Minea, Mohd Mustafa Al Bakri Abdullah, Mirabela Georgiana Minciună, and Andrei Victor Sandu. "Improvement of Properties of Aluminum Bronze CuAl₇Mn₃ by Heat Treatments." Applied Mechanics and Materials 657 (October 2014): 412–16. http://dx.doi.org/10.4028/www.scientific.net/amm.657.412.

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Top domains of technology, such as aerospace, nuclear technology, electrical engineering, electronics, energy, require materials and alloys with special properties: superconductivity, superplasticity, high resistance to corrosion, shape memory, exceptional mechanical strength, magnetism, and resistivity. Aluminum bronzes are bronze with very good mechanical and chemical properties, which are factory profiles, strips, bearings, gears, valves, parts and fittings for chemical and food industry, gears, water pump housings, mainly parts corrosion resistant in aggressive environments.

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22

Ding, Yang, Rong Zhao, Zhenbo Qin, Zhong Wu, Liqiang Wang, Lei Liu, and Weijie Lu. "Evolution of the Corrosion Product Film on Nickel-Aluminum Bronze and Its Corrosion Behavior in 3.5 wt % NaCl Solution." Materials 12, no. 2 (January 9, 2019): 209. http://dx.doi.org/10.3390/ma12020209.

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The in-situ studies of the corrosion product film on nickel-aluminum bronze are significant for explaining the mechanism of its corrosion resistance. In this paper, the corrosion behavior of nickel-aluminum bronze and the formation process of the protective film in 3.5 wt % NaCl solution are systematically investigated. The results of scanning electron microscope analysis and electrochemical tests indicate that the corrosion resistance of nickel-aluminum bronze is improved due to the formation of the corrosion product film. The change of local electrochemical property on the corrosion product film during the immersion time is evaluated via in-situ scanning vibrating electrode technique, and it reveals the evolution rules of ionic flux in real time. The formation process of the protective film on different phases in nickel-aluminum bronze is observed directly by in-situ atomic force microscopy as height change measurements. The α phases at different locations present different corrosion behaviors, and the lamellar α phase within the α + κIII eutectoid structure gets more serious corrosion attack. The κ phases establish a stable and dense protective film in short time, preventing the corrosion attack effectively. The β′ phase, however, suffers the most serious corrosion damage until a protective film is formed after 150 min of immersion.

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23

Гершман, Иосиф, Iosif Gershman, Александр Миронов, Aleksandr Mironov, Евгений Гершман, and Evgeniy Gershman. "NEW ALUMINUM ANTIFRICTION ALLOYS INSTEAD OF BRONZES FOR MONOMETALLIC BEARINGS OPERATING UNDER CONDITIONS OF BOUNDARY FRICTION." Bulletin of Bryansk state technical university 2016, no. 4 (December 28, 2016): 22–31. http://dx.doi.org/10.12737/23158.

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In the paper there is presented an investigation on the subject of the substitution of materials used for manufacturing monometallic one-piece sliding bearings. The most widely used material for their manufac-turing is bronze of BrO4Ts4$17 grade which has rather high values of antifriction and strength properties. A whole complex of materials based on aluminum alloys is under consideration. There were investigated eight experimental alloys different with chemistry. In the paper there is described a procedure for carrying out experimental investigations. The comparative tables of the influence of these or those elements upon tribological properties are shown. An evident advantage of aluminum alloys over a compared material – bronze of BrO4Ts4S17 grade is identified. The following tribo-technical properties of experimental alloys such as score-resistance, conformability, durability, frictional moment are considered. Key words: aluminum antifriction alloys, bronze, stress-strain properties, strength, hardness, tribotechnical properties, conformability, scoreresistance, durability, secondary structures.

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24

Dyachkova, L. N., P. A. Vityaz, A. Ph Ilyushchenko, L. J. Voronetskaya, A. I. Letsko, and N. M. Parnitsky. "Influence of the ultrafine iron aluminide additive on the structure and properties of iron and copper powder materials." Doklady of the National Academy of Sciences of Belarus 63, no. 3 (June 28, 2019): 360–69. http://dx.doi.org/10.29235/1561-8323-2019-63-3-360-369.

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The results on the effect of introduction of iron aluminide of various chemical and phase compositions on the structure and mechanical properties of powdered carbon steel and tin bronze are presented. It is shown that the introduction of 0.5 % single-phase iron aluminide Fe3Al leads to an increase in the strength of powdered carbon steel by 30–40 MPa, of biphase Fe2Al5 –FeAl3 – by 80–90 MPa, 1 % – to an insignificant decrease in strength. When a single-phase iron aluminide in the powder steel structure is introduced, a decrease in cementite, differentiation is observed, aluminum diffusion into the substrate occurs, and when two-phase aluminide is introduced, the structure griding occurs as well. It is established that the introduction of 0.5 % single-phase iron aluminide into powder bronzes makes it possible to increase its strength by 80– 100 MPa, two-phase – leads to a reduction in strength by 40–50 MPa. Introduction of 1 % single-phase iron aluminide and 0.2–1 % biphasic aluminide causes a change in the morphology of the structure of the powder bronze due to alloying the copper with aluminum and iron.

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25

Goldman, R. W., A. E. Segall, and J. C. Conway. "The Dry Sliding Behavior of Aluminum Alloys Against Steel in Sheave Wheel Applications." Journal of Tribology 123, no. 4 (October 20, 2000): 676–81. http://dx.doi.org/10.1115/1.1339981.

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The dry sliding behavior of various 2xxx and 7xxx aluminum alloys with and without nickel-aluminum bronze-coatings were evaluated for industrial sheave wheel applications involving steel cables. In order to simulate the wear caused by a cable within the sheave groove, wear tests were conducted using a pin-on-ring wear test configuration. For these tests, the various aluminum alloys were worn against a 387 steel using an interfacial pressure of 13.9 MPa and a sliding velocity of 9.42 m/s. Results indicated that for the conditions studied, the 7xxx aluminum alloys exhibited a superior wear resistance relative to the 2xxx aluminum alloys with and without nickel-aluminum bronze coatings. A wear mode analysis based upon optical and electron microscopy revealed material removal mechanisms dominated by adhesive and abrasive wear. Moreover, a statistical analysis indicated a potential relationship between wear rate and a combination of yield strength, solidus temperature and post-wear inverse hardness.

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26

Gurskikh, Aleksei. "BEHAVIOR OF SINTERED ALUMINUM BRONZE IN PRESSURE PROCESSING." PNIPU Bulletin. The mechanical engineering, materials science. 20, no. 1 (March 30, 2018): 18–26. http://dx.doi.org/10.15593/2227-9877/2018.1.02.

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27

Watanabe, Y., Y. Ozaki, T. Sakai, K. Sakamoto, and K. Higashi. "Development of superplastic commercial aluminum bronze "ABPS .BETA."." Bulletin of the Japan Institute of Metals 25, no. 5 (1986): 453–55. http://dx.doi.org/10.2320/materia1962.25.453.

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28

Gurskikh, Aleksei. "BEHAVIOR OF SINTERED ALUMINUM BRONZE IN PRESSURE PROCESSING." PNIPU Bulletin. The mechanical engineering, materials science. 20, no. 1 (March 30, 2018): 18–26. http://dx.doi.org/10.15593/2224-9877/2018.1.02.

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29

Liang, Wang, Xu Xiaolei, Xu Jiujun, and Hei Zukun. "Microstructures and properties of PVD aluminum bronze coatings." Thin Solid Films 376, no. 1-2 (November 2000): 159–63. http://dx.doi.org/10.1016/s0040-6090(00)01213-x.

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30

Bennett, J. C., and C. V. Hyatt. "Microstructure of Laser Surface Melted Nickel Aluminum Bronze." Microscopy and Microanalysis 5, S2 (August 1999): 868–69. http://dx.doi.org/10.1017/s1431927600017669.

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The copper alloys commonly referred to as nickel aluminum bronzes (NAB) are widely used in marine applications due to their excellent seawater corrosion resistance and good mechanical properties. Unfortunately, these alloys are susceptible to a variety of surface sensitive degradation processes such as cavitation and wear which significantly reduce service life. Laser surface melting and cladding techniques have recently demonstrated a potential to substantially enhance the performance of NAB components. This is associated with the occurrence of a martensitic or Widmanstätten transformation from the high temperature bcc β phase accompanied by precipitation of ordered intermetallic particles collectively referred to as κ. Optimization of these techniques requires an improved understanding of the evolution of microstructure in the NAB system under conditions of rapid solidification, however little data is currently available. In this paper, transmission electron microscopy is used to examine the microstructures of a series of laser surface melted NAB alloys containing from 8 to 12 wt. % Al, 3.8 to 6.5 wt. % Ni, 3.8 to 6.5 wt. % Fe, ∽1 wt. % Mn and, in some cases, lesser amounts of Ti or Zr.

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31

Frota, T. M. P., R. A. Brito, Clodomiro Alves Jr., and V. Hajek. "Microstructure of Plasma-Sintered Aluminum Bronze Powder Compacts." Materials Science Forum 530-531 (November 2006): 133–39. http://dx.doi.org/10.4028/www.scientific.net/msf.530-531.133.

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Porous materials are successfully utilized for fabrication of many industrial components such as filters and selflubricating bearings. These products are made by powder metallurgy, where mixtured or prealloyed powders can be used. The aluminum bronze is one of the most wanted due its excellent properties in combination with low cost of the raw materials. In this work, single action compacted (100 MPa) prealloyed aluminum bronze (Cu- 9wt%Al-1wt%Fe) cylinders were sintered using a hollow cathode discharge at temperatures between 400 and 750°C with duration on the isotherm for 12 min. Microstructure changes, homogeneity, porosity and composition were analyzed after the treatment. Sintering below 550° C led to uniform but porous structure. Above 550 °C it was observed a solidified central region and a porous structure that changes slightly through out the cross-section. The diameter of the central region increased with treatment temperature. It is concluded that due to the intense plasma heating and subsequent surface melt formation a mass flow direction to the center of compacts occurred.

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32

Jiang, Yu Dong, Xiao Lan Cai, and Kai Jun Wang. "Effects of Ball Mill Additives on Properties of Bronze Powder." Applied Mechanics and Materials 71-78 (July 2011): 3539–42. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3539.

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Bronze powders were prepared using high-energy ball mill method. Effects of different additives on particle size and its distribution, gloss, water coverage and oxidation resistance of powders were discussed. The results shows that aluminum stearate has a great impact to sheet formation of bronze powder. Hexadecanoic acid has a great influence on the gloss and water surface covering. Polyvinyl alcohol(PVA) has a marked effect to improve oxidation resistance of the bronze powders.

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33

Zhao, Xu, Yuhong Qi, Jintao Wang, Tianxiang Peng, Zhanping Zhang, and Kejiao Li. "Effect of Weld and Surface Defects on the Corrosion Behavior of Nickel Aluminum Bronze in 3.5% NaCl Solution." Metals 10, no. 9 (September 11, 2020): 1227. http://dx.doi.org/10.3390/met10091227.

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To study the effect of weld and defects on the corrosion behavior of nickel aluminum bronze (UNS C95810) in 3.5% NaCl solution, the weight loss, X-ray diffraction, optical microscope, scanning electron microscope and electrochemical test of the specimen with weld and defects were investigated. The results show that the presence of weld and defects increases the corrosion rate of bronze. Weld does not change the structure of the corrosion product film, but defects induce a lack of the protective outermost corrosion product in bronze. Weld makes the corrosion product film in the early stage more porous. Defects always produce an increase in the dissolution rate of the bronze.

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34

Pisarek, B. P., D. Kołakowski, and T. Pacyniak. "Analysis of the Causes of Cracks in a Thick-Walled Bush Made of Die-Cast Aluminum Bronze." Archives of Foundry Engineering 16, no. 4 (December 1, 2016): 119–24. http://dx.doi.org/10.1515/afe-2016-0095.

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Abstract For the die casting conditions of aluminium bronzes assumed based on the literature data, a thick-walled bush was cast, made of complex aluminium bronze (Cu-Al-Fe-Ni-Cr). After the cast was removed from the mould, cracks were observed inside it. In order to identify the stage in the technological production process at which, potentially, the formation of stresses damaging the continuity of the microstructure created in the cast was possible (hot cracking and/or cold cracking), a computer simulation was performed. The article presents the results of the computer simulation of the process of casting the material into the gravity die as well as solidifying and cooling of the cast in the shape of a thick-walled bush. The simulation was performed with the use of the MAGMA5 program and by application of the CuAl10Ni5,5Fe4,5 alloy from the MAGMA5 program database. The results were compared with the location of the defects identified in the actual cast. As a result of the simulation of the die-casting process of this bush, potential regions were identified where significant principal stresses accumulate, which can cause local hot and cold cracking. Until now, no research has been made of die-cast aluminium bronzes with a Cr addition. Correlating the results of the computer simulation validated by the analysis of the actual cast made it possible to clearly determine the critical regions in the cast exposed to cracking and point to the causes of its occurrence. Proposals of changes in the bush die casting process were elaborated, in order to avoid hot tearing and cold cracking. The article discusses the results of preliminary tests being a prologue to the optimization of the die-casting process parameters of complex aluminium bronze thick-walled bushs.

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Jin, Kongjie, Zhuhui Qiao, Shuai Wang, Shengyu Zhu, Jun Cheng, Jun Yang, and Weimin Liu. "The effects of the main components of seawater on the tribological properties of Cu–9Al–5Ni–4Fe–Mn alloy sliding against AISI 52100 steel." RSC Advances 6, no. 8 (2016): 6384–94. http://dx.doi.org/10.1039/c5ra19719h.

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Wannaprawat, Nuwan, Surasak Suranuntchai, Swieng Thuanboon, and Vitoon Uthaisangsuk. "Influences of Temperature and Strain Rate on Microstructure of Manganese Aluminum Bronze Alloy." Advanced Materials Research 1101 (April 2015): 208–11. http://dx.doi.org/10.4028/www.scientific.net/amr.1101.208.

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Manganese Aluminum Bronze has been extensively used for applications under seawater such as marine propellers, because this alloy exhibits high strength as well as excellent corrosion resistance behavior. In this work, microstructures and hardness properties of an as cast Manganese Aluminum Bronze undergoing hot deformation at different temperatures between 700oC, 750oC, 800oC and 850oC with the strain rates of 0.1s-1 and 1s-1 were investigated. Microstructures of the MAB alloy from each condition were characterized by both optical and scanning electron microscopy. The results showed that dynamic recrystallization obviously occurred at the temperatures higher than 800oC for both strain rates. Finally, determined hardness values were correlated with observed microstructure evolutions.

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Stepanova, Natalia, Elena Lozhkina, Alexey Razumakov, and Anna Losinskaya. "Wear Resistance of Hypereutectoid Steel Alloyed with Copper and Aluminum." Applied Mechanics and Materials 788 (August 2015): 274–80. http://dx.doi.org/10.4028/www.scientific.net/amm.788.274.

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The structure, mechanical properties and wear resistance of hypereutectoid steel containing 0.09-8.97 wt. %copper were studied. It is found that an increase in copper increases lamellar pearlite microhardness. Triboengineering testings under conditions of sliding friction show that wear resistance of hypereutectoid steel alloyed with 8.97 wt. % copper is ~3.5 times higher than the wear resistance of bronze and by ~23 % higher than the wear resistance of bearing cast iron. Under conditions of friction on fixed abrasive particles a relative wear resistance of the hypereutectoid steel alloyed with copper is ~3 times higher than a relative wear resistance of bronze.

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Dziubina, A. V., V. F. Mazorchuk, K. I. Uzlov, and S. I. Repyakh. "Chemical composition improvement of aluminum-iron bronze industrial casting." Bulletin of Prydniprovs’ka State Academy of Civil Engineering and Architecture, no. 3 (June 26, 2020): 57–62. http://dx.doi.org/10.30838/j.bpsacea.2312.070720.57.641.

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Kim, Sang Yum, Chang Hee Choi, and Dong Nyung Lee. "Deformation and Annealing Textures of Drawn Aluminum Bronze Wires." Materials Science Forum 408-412 (August 2002): 913–18. http://dx.doi.org/10.4028/www.scientific.net/msf.408-412.913.

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Blanchet, Thierry A., Steven J. Shaffer, Anne-Claire Christiaen, and Joseph M. Kolly. "Grease-lubricated wear of aluminum bronze for jackscrew application." Wear 255, no. 7-12 (August 2003): 1238–50. http://dx.doi.org/10.1016/s0043-1648(03)00177-7.

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Konieczny, M. "Mechanical properties of laminated CuAl10Fe3Mn2 aluminum bronze - intermetallics composites." IOP Conference Series: Materials Science and Engineering 461 (December 10, 2018): 012042. http://dx.doi.org/10.1088/1757-899x/461/1/012042.

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Freiße, Hannes, Anika Langebeck, Henry Köhler, Thomas Seefeld, and Frank Vollertsen. "Investigations on dry sliding of laser cladded aluminum bronze." Manufacturing Review 3 (2016): 13. http://dx.doi.org/10.1051/mfreview/2016012.

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Kuppahalli, Prabhakar, R. Keshavamurthy, P. Sriram, and J. T. Kavya. "Microstructural and Mechanical behaviour of Nickel Aluminum Bronze alloys." IOP Conference Series: Materials Science and Engineering 577 (December 7, 2019): 012044. http://dx.doi.org/10.1088/1757-899x/577/1/012044.

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Gurskikh, A. V. "THE BEHAVIOR OF SINTERED ALUMINUM BRONZE DURING PRESSURE TREATMENT." Vektor nauki Tol'yattinskogo gosudarstvennogo universiteta, no. 1 (2018): 17–23. http://dx.doi.org/10.18323/2073-5073-2018-1-17-23.

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Voropaev, V. S., and G. Y. Kalutskii. "Structure and properties of aluminum bronze-lead composite material." Powder Metallurgy and Metal Ceramics 38, no. 7-8 (July 1999): 419–23. http://dx.doi.org/10.1007/bf02676180.

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Badawy, Waheed A., Rabab M. El-Sherif, and Hassan Shehata. "Electrochemical behavior of aluminum bronze in sulfate-chloride media." Journal of Applied Electrochemistry 37, no. 10 (July 20, 2007): 1099–106. http://dx.doi.org/10.1007/s10800-007-9362-9.

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Yilbas, B. S., A. Matthews, A. Leyland, C. Karatas, S. S. Akhtar, and B. J. Abdul Aleem. "Laser surface modification treatment of aluminum bronze with B4C." Applied Surface Science 263 (December 2012): 804–9. http://dx.doi.org/10.1016/j.apsusc.2012.10.009.

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Siemek, K., M. K. Eseev, P. Horodek, A. G. Kobets, and I. V. Kuziv. "Defects studies of nickel aluminum bronze subjected to cavitation." Applied Surface Science 546 (April 2021): 149107. http://dx.doi.org/10.1016/j.apsusc.2021.149107.

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Ohashi, Osamu, Norio Yamaguchi, and Yasuaki Kayanuma. "Bonding of 4032 Aluminum Alloy to Aluminum Bronze by Pulse Electric Current Sintering Method." Journal of the Japan Society of Powder and Powder Metallurgy 48, no. 11 (2001): 1000–1005. http://dx.doi.org/10.2497/jjspm.48.1000.

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Lee, Dong Nyung. "Effect of Stacking Fault Energy on Evolution of Recrystallization Textures in Drawn Wires and Rolled Sheets." Materials Science Forum 495-497 (September 2005): 1243–48. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.1243.

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The drawing textures of aluminum, copper, gold, silver, and Cu-7.3% Al bronze wires are approximated by major <111>+minor <100>, except silver wire, which can have the <100> texture at extremely high reductions. The <111> component in the drawing textures of aluminum, copper, gold, and silver transform to the <100> component after recrystallization. On the other hand, the <111> deformation texture of the Cu-7.3% Al bronze wire, which has very low stackingfault- energy, remains unchanged after recrystallization. The Brass component {110}<112> in rolling textures of high stacking-fault-energy metals such as aluminum and copper alloys changes to the Goss orientation {110}<001> after recrystallization. However, the Brass orientation in rolling textures of low stacking-fault-energy fcc metals such as brass appears to change to the {236}<385> orientation after recrystallization. These results seem to be related to the stability of dislocations during annealing.

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