In the present study, influences of cold rolling and annealing time on fatigue crack propagation behavior AA5052 aluminum alloy were investigated. The sheet was cold-rolled under different reductions, i.e., 0, 15, 30, 45%. 45% as-rolled specimen then annealed at 370°C times, for 2, 4, 6 h. microstructure evolutions after treatments also examined using optical microscopy whereas characterized by...

Three different heat treatments of aluminum alloy AA5052 were subjected to various levels of uniaxial plastic strain. The resulting surfaces were then evaluated using both scanning laser confocal microscopy (SLCM) and stylus profilometry. Three regression approaches were used to assess the quality of a linear and a curvilinear fit for the roughness data as a function of true plastic strain. Whi...

0261-3069/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.matdes.2010.08.008 ⇑ Corresponding author. Address: School of Mechan ing, Nanyang Technological University, 50 Nanyang Republic of Singapore. Tel.: +65 6790 5588; fax: +65 E-mail address: [email protected] (Z.W. Zhon In this study, a rapidly solidified aluminum alloy was compared with beryllium copper and 6061 aluminum alloys in ...

in this paper, welding feasibility between aa1100, aa5050 and aa6082 aluminum alloys and a441 aisi steel by friction stir welding has been studied. mathematical analysis of the heat generation during process showed that the maximum temperature produced in aa6082 aluminum alloy and a441 aisi joint but heat distribution in aa1100 aluminum alloy was higher than the other alloys. the investigation ...

In the present study, the mechanical behavior of AA5052 aluminum alloy during cold deformation and subsequent isothermal annealing in a temperature range of 225-300oC was investigated using the uniaxial tensile test data. It is found that by increasing the annealing time and temperature the material yield strength is decreased. The microstructural investigations of the annealed samples show tha...

In recent year’s aluminum and aluminum alloys are widely used in automotive industries. These are light weight (density of about 2.7g/cc),having good malleability and formability, high corrosion resistance and high electrical and thermal conductivity. High machinability and workability of aluminum alloys are prone to porosity due to gases dissolved during melting processes. However, in the engi...

The purpose of this paper is to develop AA5052 aluminum alloy solid disc from machining wastes via friction stir consolidation (FSC) process & optimize its parameters: die rotational speed, pre-compact aspect ratio and processing time. At first, the required dedicated tooling designed built. Then, discs are fabricated chips using FSC process. Taguchi L9 orthogonal array used analyze Experim...