توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Effect of Magnesium and Silicon Concentration on Elongation and Electrical Conductivity of 6101 Aluminum Alloy
نویسنده(ها): ،
اطلاعات انتشار: دومین کنفرانس بین المللی آلومینیوم، سال
تعداد صفحات: ۴
6101 aluminium alloy, in Al–Mg–Si group, is extensively used as an electrical conductors. Its elongation as well as electrical conductivity is the major properties which should be controlled during production process of aluminium wire conductors. Magnesium and silicon contents of this alloy, both, through affecting on the volume fraction of Mg2Si precipitates and insoluble silicon inclusions in the microstructure can effectively influence on these properties. In this investigation, the influence of Mg:Si concentration ratio on elongation and electrical conductivity of the 6101 rods has been studied by standard electrical resistance and tensile tests. The chemical composition of the samples and their microstructure were respectively evaluated using optical emission spectrometry and scanning electron microscopy (SEM) equipped with energy dispersive spectrometry (EDS) analyzer. The results show that in weight percent ratio of Mg:Si=1 the elongation of 6101 aluminium rods increases to about 18 % while its specific electrical conductivity does not remarkably change. This is considered as a favourite result for produced 6101 aluminium rods which are subsequently used in production process of wire conductors through cold wire drawing.<\div>

۲Non–Isothermal Hot Deformation Behavior of Extrude and Cast AA 2024 Aluminum Alloys
نویسنده(ها): ،
اطلاعات انتشار: دوازدهمین کنفرانس ملی مهندسی ساخت و تولید ایران، سال
تعداد صفحات: ۴
Hot deformation behavior of two types, extrude and cast, samples of AA 2024 aluminum alloy was evaluated using nonisothermal hot compression tests. After primary heat treatments, the samples were pre–heated at 440, 460 and 480 oC and then non–isothermally hot compressed under strain rate of 0.5 S–1. The pre–precipitated extrude samples, due to microstructural stability show an adequate stable flow to about 45 percent strain, while the maximum strain in the homogenized and water quenched cast samples, due to flow instability, is limited to less than 30 percent. The flow instability of the cast samples is attributed to their instable microstructure leading to rapid formation of the adiabatic shear bands during the hot compression<\div>
نمایش نتایج ۱ تا ۲ از میان ۲ نتیجه