کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10140265 | 1645998 | 2019 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of build orientation on the fatigue properties of as-built Electron Beam Melted Ti-6Al-4V alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
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چکیده انگلیسی
As-built Ti-6Al-4V thin parts were manufactured in three different orientations using EBM and characterized by laboratory X-ray tomography. Fatigue tests were performed. The comparison with results for machined samples from the literature showed a large reduction of fatigue strength. SEM observations of the fracture surfaces showed that surface defects which were identified as notch-like defects on tomographic images caused the failure. Their impact on fatigue results was rationalized by Kitagawa-Takahashi diagrams. A build orientation impact on the fatigue properties was observed and linked to its effect on defects distributions and crack growth. The limits of roughness measurements were also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 118, January 2019, Pages 65-76
Journal: International Journal of Fatigue - Volume 118, January 2019, Pages 65-76
نویسندگان
Theo Persenot, Alexis Burr, Guilhem Martin, Jean-Yves Buffiere, Remy Dendievel, Eric Maire,