کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5455492 | 1514643 | 2017 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The different hardening effects of tension twins on basal slip and prismatic slip in Mg alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The different hardening effects of tension twins on basal slip and prismatic slip in Mg alloys The different hardening effects of tension twins on basal slip and prismatic slip in Mg alloys](/preview/png/5455492.png)
چکیده انگلیسی
A study regarding the influence of {101¯2} twins on hardening of prismatic slip and basal slip was performed. To this end, a rolled Mg AZ31 with and without {101¯2} twins was tensioned along the transverse direction and at 45° from the normal direction to activate prismatic slip and basal slip predominant deformations, respectively. The results show that grain refinement by {101¯2} twins is more effective to strengthen basal slip (28 MPa increment in yield strength) than prismatic slip (11 MPa increment). It is shown that a lower geometric compatibility factor (mâ²) for basal slip transfer than prismatic slip transfer across boundaries exists in the pre-twinned samples, indicating a higher boundary obstacle effect. {101¯2} twin boundary with a basal pole inclined by 86° generates a lower mâ² for basal slip transfer than that for prismatic slip transfer. This together with the high fractions of twin boundaries account for the lower mâ² for basal slip transfer than that for prismatic slip transfer in the pre-twinned sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 700, 17 July 2017, Pages 695-700
Journal: Materials Science and Engineering: A - Volume 700, 17 July 2017, Pages 695-700
نویسندگان
Huihui Yu, Yunchang Xin, Yao Cheng, Bo Guan, Maoyin Wang, Qing Liu,