کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1581252 | 1514857 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of microstructure and strain rate on adiabatic shearing behavior in Ti-6Al-4V alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Adiabatic shearing behavior of Ti-6Al-4V alloys with bimodal and lamellar microstructures is investigated at strain rates ranging from 103 sâ1 to 104 sâ1 by Spilt Hopkinson Pressure Bar and Taylor impact. The characteristic of fracture is closely related with the behavior of adiabatic shear band in Ti-6Al-4V alloys. In bimodal microstructure at strain rate of 103 sâ1, the adiabatic shear bands are regularly spaced and orientated along the maximum shear stress plane. In case of the lamellar microstructure, when the strain rates increase from 4000 sâ1 to 6000 sâ1, the adiabatic shear bands go through the transition from self-organization to branching off and interconnecting into a net-like structure. At strain rate of 104 sâ1 by Taylor impact, the regularly spaced adiabatic shearing cracks cause that the fracture surface makes an angle of 45° with the impacted end of the projectile in bimodal microstructure. The net-like adiabatic shearing cracks in lamellar microstructure result in the fragmentation of the projectile head, the angle is about 0°.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 501, Issues 1â2, 15 February 2009, Pages 30-36
Journal: Materials Science and Engineering: A - Volume 501, Issues 1â2, 15 February 2009, Pages 30-36
نویسندگان
Xinqin Liu, Chengwen Tan, Jing Zhang, Yangguang Hu, Honglei Ma, Fuchi Wang, Hongnian Cai,