کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1572649 | 1514429 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of geometric features of quasi-brittle profiles of iron fractures with various levels of wavelet filtration in relation to the grain size of the ferritic structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper a relationship between metal structures described by equivalent grain size D and the average distance between local maximum and minimum points (ãLMMDã-Local Maximum Minimum Distance) of fracture profiles for brittle fractures of commercially pure iron (99.65% Fe) samples is examined. The ferrite grain size was varied by cold upsetting and recrystallization annealing of the specimens. Impact loads, at liquid nitrogen temperature (Charpy V test), were used to break the samples. Fracture profiles were recorded using a contact profilometer. The profiles were subjected to wavelet filtration and a linear dependence ãLMMDã = f(D) was revealed, and observed irrespective of the filtration level range of 2-7. Profiles were examined at low-level frequency wavelet approximations of raw profiles and with high-level frequencies to obtain details of these same profiles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 56, Issues 4â5, June 2006, Pages 305-309
Journal: Materials Characterization - Volume 56, Issues 4â5, June 2006, Pages 305-309
نویسندگان
Jerzy Wawszczak,