کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1579616 1001228 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical properties of multiphase Nb-Si-Fe in situ composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Mechanical properties of multiphase Nb-Si-Fe in situ composites
چکیده انگلیسی
Nb-xSi-2Fe (x = 3, 6, 10, 16 at.%) in situ composites consisting of an Nb solid solution and the intermetallic phases Nb3Si, Nb5Si3 and Nb4Fe3Si5 were synthesized by hot pressing sintering to yield a fine microstructure with all four phases being in micron range. Fracture toughness of these composites at room temperature increase from 10.2 to 14.6 MPa m1/2 with content of Si from 16 to 3 at.%. The Nb4Fe3Si5 phase contributes to improve the fracture toughness of these composites. The tensile properties of these composites at elevated temperature were evaluated in vacuum at 1300 °C with strain rate of 2.31 × 10−4 s−1. These composites displayed large ductility and good mechanical strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issue 20, 25 July 2010, Pages 5230-5233
نویسندگان
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