کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1575159 | 1514734 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Texture and fatigue behavior of ultrafine grained copper produced by ECAP
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Electrolytic Tough Pitch (ETP) and Fire Refined High Conductivity (FRHC) copper samples were severely deformed by equal channel angular pressing (ECAP) and the effect of plastic deformation on the microstructure, texture and fatigue was investigated. The microstructural behavior was determined by analysis of the final texture through Inverse Pole Figures (IPF) and Orientation Distribution Function (ODF) maps, which revealed a marked decrease in the normal grain size of the ECAPed coppers and also the presence of recrystallization processes. The effect of the initial texture on the evolution of the texture after 8 ECAP passes for the two coppers was also analyzed. The results showed that the annealed materials presented a marked anisotropy, with a texture controlled by the ã110ã fiber. Additionally, the fatigue behavior of ultrafine grained coppers produced by ECAP was discussed briefly with respect to the macroscopic shear banding and fatigue lives. Experimental results also suggest that the fatigue behavior of ultrafine grained coppers processed by ECAP is quite different from conventional grained coppers, as the deformed materials presented a significant increase in the fatigue limit.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 609, 15 July 2014, Pages 273-282
Journal: Materials Science and Engineering: A - Volume 609, 15 July 2014, Pages 273-282
نویسندگان
Oscar Fabián Higuera-Cobos, Jonathan Antonio BerrÃos-Ortiz, José MarÃa Cabrera,