کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1556688 999205 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oxidation and Thermal Shock Behavior of a Glass-Alumina Composite Coating on K38G Superalloy at 1000 °C
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد شیمی مواد
پیش نمایش صفحه اول مقاله
Oxidation and Thermal Shock Behavior of a Glass-Alumina Composite Coating on K38G Superalloy at 1000 °C
چکیده انگلیسی

The glass-alumina composite coatings were successfully prepared on the K38G superalloy substrates. Their isothermal oxidation and thermal shock behavior at 1000 °C were characterized. With a post-annealing process at 850 °C, the composite coatings possessed an improved protective effect for the alloy substrates from isothermal oxidation and a higher resistance to thermal shock. Crystallization from the glass matrix and interfacial reaction between the matrix and alumina inclusions, which caused the composites more refractory and tough, accounted for this improvement. The micromechanisms for the formation of oxidation results of spinel ZnCr2O4 were also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 28, Issue 5, May 2012, Pages 433-438