Experimental and Numerical Study of Residual Stress in the WC-۱۲Co HVOF Sprayed Coatings
- سال انتشار: 1392
- محل انتشار: فصلنامه مواد پیشرفته و فرآوری، دوره: 1، شماره: 4
- کد COI اختصاصی: JR_JMATPR-1-4_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 126
نویسندگان
Department of Mechanical Engineering, Ahwaz branch, Islamic Azad University, Ahwaz, Iran
Department of Mechanical Engineering, Babol University of technology, Babol, Iran
Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
Department of Mechanical Engineering, Ahwaz branch, Islamic Azad University, Ahwaz, Iran
Department of Mechanical Engineering, Ahwaz branch, Islamic Azad University, Ahwaz, Iran
Department of Mechanical Engineering, Ahwaz branch, Islamic Azad University, Ahwaz, Iran
چکیده
Thermally sprayed coatings are intrinsically associated with residual stresses in the deposits. These stresses are varied in nature and magnitude, and have a pronounced effect on the mechanical behavior of the system. In the current study, WC-۱۲Co coatings were deposited using HVOF thermal spraying. The sin۲ψ method was used to evaluate the through thickness residual stress by means of XRD after mechanical layer removal process. A nonlinear explicit-implicit finite element model was developed to study the peening and thermal stress during the high velocity impact of WC-۱۲Co particle and cooling the splat and coating layers. The average of through thickness residual stress using X-Ray diffraction and numerical model was -۱۵۷.۱ MPa and -۱۳۳.۴ MPa respectively. The results showed that the residual stress was compressive and had a good agreement with the experimental results in literature.کلیدواژه ها
HVOF, Peening stress, FEM, WC-۱۲Co, XRDاطلاعات بیشتر در مورد COI
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