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۱Interface Characterization of Al\Cu\Al Tri–layer Composites after Explosive cladding and Rolling Process
نویسنده(ها): ،
اطلاعات انتشار: چهارمین کنفرانس بین المللی کامپوزیت، سال
تعداد صفحات: ۶
In the present study, the fabrication of tri–layer composites by explosive welding and subsequent rolling has been investigated. The effect of cladding\deformation variables on the integrity, the soundness and microstructural properties were evaluated using optical microscopy as well as the micro–hardness testing. It was observed that, when the explosive ratio was increased smooth bonding interface transformed to a wavy interface accompanied by the formation of intermetallic components. The hardness of bonding interface of plates was increased because of deformation that was originating from the impact effect. Interest was directed towards the surface topography, metallurgical changes of interface zone and characterization of defects could affect the properties of the composite products. In addition, the difference in the plastic strain experienced by each material increases with increase in the total plastic strain and volume ratio that may result in de cohesion, fracture or other heterogeneity.<\div>

۲Experimental and Theoretical Analyses of Deformation during the Rolling Process of Explosively–welded Tri–layer Strips
نویسنده(ها): ،
اطلاعات انتشار: سومین کنفرانس بین‌المللی آلومینیوم ایران IIAC2014، سال
تعداد صفحات: ۵
This article represents the results of studies related to the production of tri–layer composites by tailoring the initial materials characteristics before explosive welding and cold rolling process. It is shown that the similarity of mechanical characteristics during simultaneous deformation of dissimilar layers reduces the differential velocity between the core and clads as indicated by lower failure propensity. Using the appropriate thickness reductions and in turn the high interfacial bond aids the sound flow over a wide range of processing conditions. The non–uniformities of deformation would be accommodated by the softer layer near the interface through micro–mechanical interactions. In addition, the difference in the plastic strain experienced by each material increases with increase in the total plastic strain and volume ratio.<\div>
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