کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
778430 1463801 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Considerations in fatigue lifing of stress concentrations in textured titanium 6-4
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Considerations in fatigue lifing of stress concentrations in textured titanium 6-4
چکیده انگلیسی

The effect of crystallographic texture has been considered in attempting to derive a total life prediction capability for the titanium alloy Ti6-4. Orientation effects due to texture are shown to be a result of stress relaxation in strain control specimens, and consequently occur in some cases of notched specimens. It is shown that these effects can be predicted using analytical methods such as the Modified Coffin–Manson and Walker strain approaches. Additional failure mechanisms such as cold dwell prohibit accurate predictions at higher R ratios. It is also acknowledged that texture effects can occur in the crack propagation phase of notched specimens and should be considered in a total life model.


► Improved understanding of textured alloys in the presence of stress concentrations.
► Methods of fatigue lifing in textured Ti6-4, including limitations.
► The influence of cold dwell in textured Ti6-4.
► Opportunity for more widespread use of textured alloys.
► Improved properties offer opportunity for weight reductions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 33, Issue 10, October 2011, Pages 1384–1391
نویسندگان
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