کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5456382 | 1514661 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of rhenium and ruthenium on the deformation and fracture mechanism in nickel-based model single crystal superalloys during the in-situ tensile at room temperature
ترجمه فارسی عنوان
اثر رنیوم و روتنیم بر مکانیزم تغییر شکل و شکست در مدل کریستال نیکل بر پایه مدل نیکل در طی کشش موضعی در دمای اتاق
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کلمات کلیدی
سوپر آلیاژهای تک کریستال مدل مبتنی بر نیکل، آزمایش کششی در محل، شکستگی، تنظیمات جابجایی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In-situ tensile experiments of Ni-Al, Ni-Al-Re and Ni-Al-Re-Ru model single-crystal superalloys were performed in scanning electron microscope (SEM) at room temperature. The plastic deformation mechanisms of all the three model superalloys were double-oriented slipping of dislocations. Micro-cracks were often formed at the intersection of two sets of slip lines. The fracture surfaces of Ni-Al and Ni-Al-Re-Ru alloys were nearly parallel to (010) planes and that of the Ni-Al-Re alloys was nearly parallel to (1â11) plane. The dislocation configuration was analyzed by transmission electron microscopy (TEM). The a/2<110> dislocation pairs coupled with antiphase boundary (APB) cut into γʹ phase in the Ni-Al and Ni-Al-Re-Ru model superalloys. In addition to these dislocations, stacking faults also cut into γʹ phase in Ni-Al-Re model superalloys. The different fracture surfaces of different model single-crystal superalloys were attributed to the influence of elements Re and Ru on the dislocation configuration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 682, 13 January 2017, Pages 90-97
Journal: Materials Science and Engineering: A - Volume 682, 13 January 2017, Pages 90-97
نویسندگان
C.P. Liu, X.N. Zhang, L. Ge, S.H. Liu, C.Y. Wang, T. Yu, Y.F. Zhang, Z. Zhang,