کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5443442 | 1510864 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regular ArticleObserving the dynamic 101¯1 twining process in pure Ti at atomic resolution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The real-time 101¯1 twinning process at the crack tip of Ti is captured by carrying out the in situ tension tests in a transmission electron microscope. Both the atomic-resolution observations and the molecular dynamics simulations reveal that the 101¯1 twinning deformation is accomplished by the twinning mode corresponding to the b2 twinning dislocations instead of the conventional b4 mode. The sessile steps in twin boundaries which induced by pyramidal stacking faults extending across the twin are observed acting as the nucleation sources of b2 twinning dislocations. The nucleation mechanism is verified by determining the Burgers vectors of the sessile steps.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 139, October 2017, Pages 139-143
Journal: Scripta Materialia - Volume 139, October 2017, Pages 139-143
نویسندگان
Zongde Kou, Yanqing Yang, Bin Huang, Xian Luo, Pengtao Li, Guangming Zhao, Wei Zhang,