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۷ صفحه

In the present study, commercially pure copper was subjected to multiple compressions in a channel die in which the specimen undergoes plain strain deformation during each pass. The specimen geometry andheight reduction during each pass were chosen such that rotation of the specimen after each pass preserves the initial specimen dimensions. The copper specimens were compressed up to 8 passes (equivalent strainof 6.4). According to microstructural analysis, an ultra–fine grained copper with the mean grain size of 170 nm was produced after 8 passes of the process. Texture analysis showed that copper–type texture develops after one pass of MAF while brass–type texture establishes after 2 to 8 passes. Also, texture strength of thestudied material initially increases and then decreases with increasing the applied equivalent strain. According to the texture analysis results, the produced ultra–fine grained material has a weak final texture. Therefore, it can be said that multiple compressions in a channel die can produce ultra–fine grained materials with approximately random texture after 8 passes.<\div>

راهنمای دریافت مقاله‌ی «Texture Evolution of Ultra–Fine Grained Commercially Pure Copper Produced by Multiple Compressions in a Channel Die» در حال تکمیل می‌باشد.

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