کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9796224 | 1514943 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compressive fracture characteristics of a Zr-based bulk metallic glass at high test temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
This paper presents the fracture characteristics of Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk metallic glass (BMG) subjected to compression tests at the calorimetric glass transition temperature and in the supercooled liquid region. Under compressive load, the catastrophic fracture is not a pure shear process and the normal stress played a critical role. Based on the Mohr-Coulomb criterion, it was found that the increase in cohesive strength due to the increase of strain rates leads to the change of fracture angles from 40° to 56°. At the calorimetric glass transition temperature, the fracture characteristics are similar to those observed at room temperature, while at higher test temperatures, different fracture features including the flow layer and round cores that are regarded as the unique features for tensile fractures of BMGs, were observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 398, Issues 1â2, 25 May 2005, Pages 82-87
Journal: Materials Science and Engineering: A - Volume 398, Issues 1â2, 25 May 2005, Pages 82-87
نویسندگان
G. Wang, J. Shen, J.F. Sun, Z.P. Lu, Z.H. Stachurski, B.D. Zhou,