کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7171393 | 1463708 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fatigue limit of a cast Al-Si-Mg alloy (A357-T6) with natural casting shrinkages using ASTM standard X-ray inspection
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fatigue limit of a cast Al-Si-Mg alloy (A357-T6) with natural casting shrinkages using ASTM standard X-ray inspection Fatigue limit of a cast Al-Si-Mg alloy (A357-T6) with natural casting shrinkages using ASTM standard X-ray inspection](/preview/png/7171393.png)
چکیده انگلیسی
This work aims to quantify the effect of natural shrinkages on the fatigue limit of A357-T6 cast aluminum alloy. The main objective is to characterize the fatigue strength of the alloy following the ASTM X-ray standard defect identification, by correlating a different ASTM indication to a fatigue limit reduction. The analysis has been conducted on six customized castings with two defect types (cavity and sponge shrinkages) and a different harmfulness ASTM grade as defined by Non Destructive Testing (NDT) standard. The effect of the defect size has been correlated with the ASTM grade and a Kitagawa-Takahashi diagram has been generated for surface defects. A micro Computed-Tomography (μ-CT) analysis has been performed in order to compare the defect size estimation using two equivalent parameters AREA1/2 and VOLUME1/3. A Defect Stress Gradient (DSG) approach has been proposed to simulate the Kitagawa-Diagram obtained for surface defects. Finally, the effect of the specimen surface has been investigated for the reference material (ASTM gradeâ¯<â¯1) by comparing the “as cast” surface to a machined surface finish.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 114, September 2018, Pages 177-188
Journal: International Journal of Fatigue - Volume 114, September 2018, Pages 177-188
نویسندگان
Antonio Rotella, Yves Nadot, Mickaël Piellard, Rémi Augustin, Michel Fleuriot,