کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7980459 1514730 2014 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Alloying and the micromechanics of Co-Al-W-X quaternary alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Alloying and the micromechanics of Co-Al-W-X quaternary alloys
چکیده انگلیسی
The lattice misfit and diffraction elastic constants in hot rolled polycrystalline Co-7Al-5W-2Ta and Co-6Al-6W-2Ti (at.%) are measured using neutron and synchrotron X-ray diffraction. The misfit in the two alloys was found to be +0.67 and +0.59%, using neutron diffraction at HRPD. The misfit was found to increase with temperature, as in Ni superalloys. This implies that the amount of coherency strengthening increases with temperature. The diffraction elastic constants measured show that the γ′ phase is less stiff than the γ matrix in all orientations, which means that load shedding will occur to the γ phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 613, 8 September 2014, Pages 201-208
نویسندگان
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