کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1584106 1514899 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An exponential equation of fatigue crack growth in titanium
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
An exponential equation of fatigue crack growth in titanium
چکیده انگلیسی

Titanium and its alloys are known for not showing a high degree of linearity of the fatigue crack growth (FCG) data. In the present work, the FCG curves of commercially pure titanium are evaluated using the conventional Paris approach and a new exponential equation named αβ model, which allows for considering non-linear da/dN–ΔK relationships. The following load ratios (min/max) were adopted for the fatigue tests: R = 0.05, 0.1, 0.15, 0.30, 0.50 and 0.60. The αβ model is more effective than Paris-based equations in describing the FCG behavior of titanium and can be easily generalized to take in account a range of stress ratios. This new model also qualifies as a promising tool to assess the FCG curves of other structural materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 452–453, 15 April 2007, Pages 321–325
نویسندگان
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