The Effect of Heat Treatment on the Microstructure and Mechanical Properties of 316L Stainless Steel Coatings Deposited by Flame Thermal Spray
- سال انتشار: 1391
- محل انتشار: سومین کنفرانس بین المللی عملیات حرارتی مواد
- کد COI اختصاصی: ICMH03_061
- زبان مقاله: انگلیسی
- تعداد مشاهده: 1807
نویسندگان
Young Researchers Club, Najaf Abad Branch, Islamic Azad University, Najaf Abad, Isfahan, Iran
Department of Materials Eng., Isfahan University of Technology, Isfahan, Iran
چکیده
In this research, the effects of heat treatment on the microstructure, the oxidation and mechanical properties of 316L stainless steel coatings sprayed by flame spraying process were studied. The microstructure characteristics of the deposits were studied using the combined techniques of X-ray diffraction (XRD) and scanning electron microscopy (SEM). Furthermore, the mechanical properties were tested using the adhesion strength and microhardness tests. Coatings have been heat-treated at a range of temperatures between 900 and 1150 °C. Results indicate that by heat-treating the coatings at a temperature of 900 °C, it is possible to achieve higher adhesion strength and hardness values. This was attributed to the improvements in the coating microstructure during the heat-treatment, which resulted in an improvement in coating's mechanical properties through the formation of intermediate phases, and the establishment of metallurgical bonding within the coating microstructure. However, the results also indicate that by increasing the temperature to a degree higher than 1150 °C, there was a reduction in the coating's mechanical properties. This could be attributed to the grain growth, and coarsened precipitation of the equilibrium phases from supersaturated solid solutions.کلیدواژه ها
Flame Spraying, Heat treatment, Coatingمقالات مرتبط جدید
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.