کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1631215 1006620 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluating the Conditions When Warm Pre-stressing does not Produce a Benefit in Apparent Toughness
ترجمه فارسی عنوان
ارزیابی شرایط هنگامی که قبل از استرس گرما در ضعف ظاهری مزایای ایجاد نمی کند؟
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی

Warm pre-stressing (WPS) is the process of subjecting a pre-cracked component to a load cycle at a temperature higher than subsequent operating temperatures. This process is widely acknowledged as being able to enhance the load to fracture, especially in ferritic steels which exhibit lower shelf cleavage fracture. Although accurate estimates of the toughness distributions can be obtained, the accuracy of WPS predictions may be limited by the sample size. It can be argued that the experiments conducted to date are devised to show that the WPS enhancement is always successful, however there are circumstances when a specimen might fail prematurely during the WPS path. Focus is drawn on predicting the number of prematurely failed specimens at different temperatures and pre-load levels.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Today: Proceedings - Volume 2, Supplement 2, 2015, Pages S401-S407