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Preparation of Aluminum Foam Sandwich by Rolling-bonding/Powder Metallurgy Foaming Technology祖国胤School of Materials & Metallurgy, Northeastern University摘 要:Aluminum foam sandwich was prepared by rolling-bonding/powder metallurgical foaming technology, and the effects of rolling on bond strength of face sheet/powders and powder density were studied......
characteristics were mainly analyzed and discussed. Experiments show that the aluminum-foam with closed pores and a uniform cell structure of high porosity can be obtained using this method by adjusting the foaming parameters: the content of foaming agent and foaming temperature. Key words:aluminum foams; powder compact foaming process; foam structure; [全文内容正在添加中] ......
Institute of Technology, Nanchang 330099, China Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: SiC foam ceramic reinforced aluminum matrix composites (SFCAMCs) were prepared by squeeze casting aluminum alloy (Al-23Si) into the SiC foam ceramic with different pore sizes, and the corrosion behavior of the SFCAMCs was studied in NaCl solutions. Static immersion......
Society, 1993, 101(152): 513-518. [12]Zhao Q, Burke J T, Gustafson T W. Foam removal mechanism in aluminum lost foam casting [J]. Transactions of the American Foundry Society, 2002, 110(83): 1399-1414..., Sheu G L. Mold filling behavior in vertical gating lost foam aluminum alloy [J]. Transactions of the American Foundry Society, 2001, 109(79): 1503-1521. [21]Celotto S. TEM study of continuous......
, and reaches the maximum at about 1 kHz, with increasing porosity and decreasing cell diameter the sound absorption coefficient values increase. Key words:aluminum foam; sound absorption property; sound... the sample (Fig.1(b)). The porosity is ranging from 54.2% to 77%. Fig.1 Microstructures of open-cell aluminum foam: (a) Open-pore structure; (b) After removing salt 2.2 Testing principle [15] The sound......
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Trans. Nonferrous Met. Soc. China 20(2010) s768-s773 Microstructural evolution of Mg9AlZnY alloy with vibration in lost foam casting during semi-solid isothermal heat treatment... 430074, China Received 13 May 2010; accepted 25 June 2010 Abstract: The nearly equiaxed grains of Mg9AlZnY alloy were obtained by vibrating solidification in lost foam casting(LFC......
characteristics, application and development of the metal-lic foams. Sound specimen has been achieved with preparing foam aluminum by usinginvestment casting process. The preparation of plaster... important link. The penetrating model and the affecting mechanismof the main parameters were also analyzed. As a result, the optimum values weredetermined.`` Key words:aluminum foam; investment......
porosity. Key words: aluminum alloy; lost foam casting; coating thickness; slurry viscosity; dipping time; porosity 1 Introduction Lost foam casting (LFC) as a cost-effective and environmentally friendly casting process is widely used for aluminum alloy castings to produce complex engineering components [1,2]. The layer of coating applied on the pattern foam is a crucial parameter for producing......
-cell pure aluminum (Al) foams with Mg powders were prepared by powder metallurgy route. The effects of addition of Mg powders on the foaming behaviors and foam stability were discussed. The results... greatly and hence foam stability is improved. The optimum expansion rate and uniform cell structures are achieved as oxygen content for air-atomized Al powder is (0.34±0.01)% (mass fraction......
