کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1614453 1516335 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Studies on thermal stability, mechanical and electrical properties of nano crystalline Cu99.5Zr0.5 alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Studies on thermal stability, mechanical and electrical properties of nano crystalline Cu99.5Zr0.5 alloy
چکیده انگلیسی

Cryogenic high energy ball milling was used to synthesize nanocrystalline Cu and Cu99.5Zr0.5 alloys by mechanical alloying and consolidation by hot pressing at 550 °C temperature. The grain size stability of nanocrystalline Cu is improved by the Zr addition. Microstructural characterization using X-ray diffraction and transmission electron microscopy provided evidence for the formation of a Cu–Zr alloy solid solution with nanocrystalline size after hot pressing. The alloy exhibited a higher hardness (3.31 GPa), and shear strength (550 MPa) than nano-crystalline pure Cu however, the electrical resistivity is increased in the alloy.

Figure optionsDownload as PowerPoint slideHighlights
► 0.5 at.% of Zr addition is an excellent candidate for stabilizing nanocrystalline Cu.
► The Cu99.5Zr0.5 alloy shows better mechanical properties than nanocrystalline Cu after hot-pressing at 550 °C.
► However, electrical resistivity is higher than nanocrystalline Cu.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 558, 5 May 2013, Pages 44–49
نویسندگان
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