کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7833977 1503526 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the determination of growth stress during oxidation of pure zirconium at elevated temperature
ترجمه فارسی عنوان
در تعیین استرس رشد در طول اکسیداسیون زیرکونیم خالص در دمای بالا
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
An experimental approach have been proposed to evaluate growth of stress during high temperature oxidation of pure zirconium. The development of stress in the oxide scale has been investigated experimentally in in-situ conditions by combining the Deflection Test in Monofacial Oxidation (DTMO) with Acoustic Emission analysis (AE). Microstructure of the sample were studied by using Scanning Electron Microscopy technique. Oxidation experiments were performed continuously during 24 h at 400 °C and 500 °C in air under normal atmospheric pressure. Taking into account purely elastic behaviour of the material, primary evolution of growth stress developed in the oxide scale during oxidation process have been estimated. Presented study of the Zr/ZrO2 system revealed two opposite phenomena of stress relief when cooling from 400 °C and 500 °C to room temperature. This study is presented as a tool to understand the phenomena of stress evolution in the zirconia layer during isothermal treatment at high temperature and after cooling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 446, 15 July 2018, Pages 27-35
نویسندگان
, , , ,