کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7004499 1454981 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of impact angle and testing time on erosion of stainless steel at higher velocities
ترجمه فارسی عنوان
اثر زاویه ضربه و زمان آزمایش بر فرسایش فولاد ضد زنگ در سرعت های بالاتر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی
Erosion is vitally important in aerospace and petrochemical industries, especially when the targets such as flight engines, gas control valves etc are subjected to high speed in an environment containing sand particles. A new erosion test rig, with a capability of producing a velocity greater than Mach 3, was built up to cater to this purpose. Results obtained from stainless steel testing showed that erosion rate was saturated at 120 s and reduced subsequently. In addition, the results of erosion rates at different impact angles indicated that severe erosion maximizes at an impact angle of 40°. Further, erosion profiles showed different erosion effects on the sample surface. Surface roughness increased with respect to time and peaked at 45°. Investigation into surface microstructure revealed different erosion mechanisms associated with different impact angles. The erosion mechanism transition from micro-plowing to indentation induced plastic deformation took place from low to high impact angles. Further, computational fluid dynamic model was used to compare with experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 321, 30 December 2014, Pages 87-93
نویسندگان
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