کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1581318 1514858 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of strong magnetic field treatment on microstructure and room temperature compressive properties of NiAl-Cr(Mo)-Hf eutectic alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
The effect of strong magnetic field treatment on microstructure and room temperature compressive properties of NiAl-Cr(Mo)-Hf eutectic alloy
چکیده انگلیسی
The Ni-33Al-28Cr-6Mo-0.2Hf (at.%) eutectic alloy was treated in a 10 T strong magnetic field at 1073 K, 1173 K and 1273 K for 1 h, respectively. Microstructure examination reveals that after the strong magnetic field treatment, Heusler particles (Ni2AlHf) along eutectic cell boundaries distribute more uniformly, and moreover most Heusler particles have changed into Hf solid solution. In addition, after strong magnetic field treatment at 1173 K and 1273 K, the original eutectic cellular morphology is changed greatly; Cr(Mo) plates become spheroidizing and trend to align to the direction of strong magnetic field. The compression tests show that room temperature compressive ductility of the alloys with strong magnetic field treatment improves significantly, compared with the heat-treated alloy. The fracture characteristics change from debonding into transgranular cleavage, which indicates that the cohesion of grain boundaries get significant improvement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 500, Issues 1–2, 25 January 2009, Pages 238-243
نویسندگان
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