کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1500289 | 993341 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Insight into the deformation behavior of niobium single crystals under uniaxial compression and tension at the nanoscale
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Insight into the deformation behavior of niobium single crystals under uniaxial compression and tension at the nanoscale Insight into the deformation behavior of niobium single crystals under uniaxial compression and tension at the nanoscale](/preview/png/1500289.png)
چکیده انگلیسی
Size-dependent deformation behavior of niobium single-crystalline samples 200–900 nm in diameter is investigated by in situ compression and tension testing. Stress–strain curves in compression show discrete plastic flow associated with dislocation escapes at the surface. In tension, plastic flow is more continuous with pronounced strain hardening, and fracture occurs at the low true strain of ∼3%. Transmission electron microscopy analysis of the same 100 nm nanopillar before and after deformation provides insights into dislocation activity during compression deformation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 61, Issue 3, August 2009, Pages 300–303
Journal: Scripta Materialia - Volume 61, Issue 3, August 2009, Pages 300–303
نویسندگان
Ju-Young Kim, Dongchan Jang, Julia R. Greer,