کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
769664 1463007 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessment of fatigue striation counting accuracy using high resolution scanning electron microscope
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Assessment of fatigue striation counting accuracy using high resolution scanning electron microscope
چکیده انگلیسی

A well-known method for determining the number of fatigue load cycles prior to failure is to perform a striation counting on the fractured surface.The primary objective of this study is to evaluate the accuracy of a striation counting performed using a high-resolution scanning electron microscope. Fatigue experiments were conducted on two aluminum alloy AA-2024-T3 specimens and two low alloy steel AISI-4130-O specimens. We then performed a fractographical analysis of the fractured specimens and compared the results to the experimental data. The second objective of this study is to determine several guidelines regarding the method of striation counting process which will raise its accuracy. This study shows that high accuracy can be achieved by counting fatigue striation using a scanning electron microscope, but one must be aware of several problems and difficulties which can occur during the counting process. Several guidelines that will raise the accuracy were determined.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 15, Issues 1–2, January–March 2008, Pages 20–27
نویسندگان
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