کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1585185 | 1514909 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High temperature oxidation of Ni70Cr30 alloy: Determination of oxidation kinetics and stress evolution in chromia layers by Raman spectroscopy
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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 work, the oxidation of Ni70Cr30 alloy has been produced at a temperature of 900 °C in air. The parabolic behaviour of oxidation was established ex situ and the corresponding kinetic constant was deduced. Microscopic observations have shown that chromia grain size does not exceed 1 μm. Raman spectroscopy was used to determine stresses in chromia (Cr2O3) layers. Stresses are found to be compressive and increase with the chromia thickness before reaching a “plateau” at −2.9 GPa. The stress relaxation phenomenon discussed here takes into account theoretical modelling that can be found in literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 435–436, 5 November 2006, Pages 666–671
Journal: Materials Science and Engineering: A - Volumes 435–436, 5 November 2006, Pages 666–671
نویسندگان
M. Kemdehoundja, J.F. Dinhut, J.L. Grosseau-Poussard, M. Jeannin,