کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6744527 1429329 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tensile deformation behavior of tungsten fibre-reinforced tungsten composite specimens in as-fabricated state
ترجمه فارسی عنوان
رفتار تغییر شکل کششی نمونه کامپوزیت تنگستن تقویت شده با فیبر تنگستن در حالت آماده به کار
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
To overcome the inherent brittleness of tungsten, which is a promising candidate for a plasma-facing material in a future fusion device, tungsten fibre-reinforced tungsten composites (Wf/W) have been developed. As a part of the materials characterisation program on Wf/W, we present the results of first tensile tests of as-fabricated Wf/W in this contribution. The results give insight on the ultimate tensile strength properties and reveal the active toughening mechanisms under tension load within the composite. Fibre bridging, fibre necking as well as fibre pull out were observed. This is leading to the typical pseudo ductile behavior of the composite which is characterized by a rising load bearing capability despite multiple matrix cracks accompanied by non catastrophic crack propagation (in the matrix). The description of the mechanical tests is supplemented by detailed microstructural investigations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 124, November 2017, Pages 396-400
نویسندگان
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