مطالعه رفتار سایشی پوشش‌های کامپوزیتی آلومینا-تیتانیا پاشش پلاسمایی شده

نوع مقاله : علمی و پژوهشی

نویسندگان

1 تحصیلات تکمیلی صنعتی و فناوری پیشرفته

2 دانشگاه صنعتی اصفهان

3 دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته

چکیده

سایش و فرسایش، عامل انهدام بسیاری از قطعات صنعتی است. پوشش‌های سرامیکی تهیه شده به‌روش پاشش پلاسمایی، اغلب باعث بهبود عمل‌کرد سایشی و فرسایشی قطعات صنعتی می‌شود. در این پژوهش، تلاش شد تا با طرّاحی و ایجاد پوشش ماده‌ی مرکب آلومینا- تیتانیا به‌روش پاشش پلاسمایی در شرایط متفاوتی از توان ورودی پلاسما، مُرفولوژی، ریزسختی و چقرمگی پوشش‌ و رفتار فرسایشی محصول مطالعه شود. مشخّصه‌یابی و ارزیابی پوشش به‌کمک پراش پرتوی ایکس و میکروسکُپ الکترونی روبشی انجام شد. خواص کش‌سانی پوشش با ارزیابی میزان تخلخل و میزان فاز آلومینای گاما در ساختار پوشش بررسی شد. افزون بر این، آزمون سختی‌سنجی ویکرز برای اندازه‌گیری ریزسختی پوشش انجام شد. نتایج نشان دادند که خواص کش‌سانی بیش‌ترین تأثیر را بر عمل‌کرد فرسایشی پوشش دارند. برای توان ورودی 28 کیلووات، افزایش ریزسختی و بهبود خواص کش‌سانی پوشش به‌صورت همزمان ملاحظه شد.

کلیدواژه‌ها

عنوان مقاله [English]

The Study of Wear Behaviour of Alumina-Titania Composite Coating Produced by Plasma Spraying Technique

نویسندگان [English]

  • Mohammad Gheirati 1
  • Mohammadhossein Fathi 2
  • Alireza Ahmadi 3
1 Graduate University Of Advanced echnology
2 Isfahan University
3 Graduate University Of Advance Technology
چکیده [English]

Wear and erosion are the main reasons for destruction of many industrial components. In many cases, ceramic coatings produced by plasma spraying technique improve wear and erosion performance of industrial components. In this study, it was attempted to design and prepare an optimized composite coating of Alumina-Titania via plasma spraying technique using various parameters of plasma input power, and to study the influence of morphology, microhardness and elastic properties of prepared coatings on their erosion behaviour. Characterization of prepared coatings was performed using X-ray diffraction (XRD) technique and scanning electron microscope (SEM). The elastic properties of coatings and the porosity and gamma alumina phase in their structure were also investigated. Vickers hardness test was performed in order to measure the microhardness of coatings. The results showed that the elastic properties have the greatest influence on the erosion performance of coatings. It was also shown that the input power of 28 kW causes an increase in both the microhardness and elastic properties of coatings simultaneously.

کلیدواژه‌ها [English]

  • Erosion performance
  • Plasma spray coatings
  • Alumina – Titania
  • Microstructure
  • Elastic properties

مراجع

1. Li, C.-J., Yang, G.-J. andOhmori, A., ''Relationship between particle erosion and lamellar microstructure for plasma-sprayed alumina coatings'', Wear, Vol. 260, pp. 1166-1172(2006).
2. Psyllaki, P.P., Jeandin, M. and Pantelis, D.I., ''Microstructure and wear mechanisms of thermal-sprayed alumina coatings'', Materials Letters, Vol. 47, pp. 77-82, (2001).
3. Santa, J.F., Baena, J.C. andToro, A., ''Slurry erosion of thermal spray coatings and stainless steels for hydraulic machinery'', Wear, Vol. 263, pp. 258-264,( 2007).
4. Fauchais, P., ''Understanding plasma spraying'', Journal of Physics D: Applied Physics, Vol. 37,pp. 86-110, (2004).
5. Pawlowski, L., ''The science and engineeringof thermal spray coatings'', John Wiley & Sons, (2008).
6. Rico, A., Poza, P. andRodriguez, J., ''High temperature tribological behavior of nanostructured and conventional plasma sprayed alumina-titania coatings'', Vacuum, Vol. 88, pp. 149-154, (2013).
7. Rico, A., Garrido, M.A., Otero, E. andRodriguez J., ''An energetic approach to the wear behaviour of plasma-sprayed alumina–13% titania coatings'', Acta Materialia, Vol. 58, pp. 5858-5870, (2010).
8. Bhandari, S., Singh, H., Kansal, H. andRastogi, V., ''Slurry Erosion Behaviour of Detonation Gun Spray Al2O3 and Al2O3–13TiO2-Coated CF8M Steel Under Hydro Accelerated Conditions'', Tribology Letters, Vol. 45, pp. 319-331, (2012).
9. Osorio, J.D., Maya, D., Barrios, A.C., Lopera, A., Jimenez, F., Meza, J.M., and et al., ''Correlations Between Microstructure and Mechanical Properties of Air Plasma-Sprayed Thermal Barrier Coatings Exposed to a High Temperature'', Journal of the American Ceramic Society, Vol. 96, pp. 3901-3907, (2013).
10. Vijayakumar, K., Sharma, A.K., Mayuram, M.M. andKrishnamurthy, R., ''Response of plasma-sprayed alumina–titania ceramic composite to high-frequency impact loading'', Materials Letters, Vol. 54, pp. 403-413, (2002).
11. Song, E.P., Ahn, J., Lee, S. and Kim, N.J., ''Effects of critical plasma spray parameter and spray distance on wear resistance of Al2O3–8 wt.%TiO2 coatings plasma-sprayed with nanopowders'', Surface and Coatings Technology, Vol. 202, pp. 3625-3632, (2008).
12. Rico, A., Rodriguez, J., Otero, E., Zeng, P. and Rainforth, W.M., ''Wear behaviour of nanostructured alumina–titania coatings deposited by atmospheric plasma spray'', Wear, Vol. 267, pp. 1191-1197, (2009).
13. Hashemi, S.M., Enayati, M.H. and Fathi, M.H., ''Plasma Spray Coatings of Ni-Al-SiC Composite'', Journal of Thermal Spray Technology, Vol. 18, pp. 284-291,( 2009).
14. Enayati, M.H., Fathi, M.H. andZomorodian A., ''Characterisation and corrosion properties of novel hydroxyapatite niobium plasma sprayed coating'', Surface Engineering, Vol. 25, pp. 338-342, (2009).
15. غیرتی م، فتحی م. ح.، احمدی ع.ر.، "بررسی اثر جریان ورودی پلاسما بر مورفولوژی پوشش کامپوزیتی آلومینا-تیتانیا تولیدی به روش پاشش پلاسمایی اتمسفری"، چهاردهمین سمینار ملی مهندسی سطح، دانشگاه صنعتی اصفهان، (1392).
16. Lima, R.S., Kucuk, A. and Berndt C.C., ''Bimodal distribution of mechanical properties on plasma sprayed nanostructured partially stabilized zirconia'', Materials Science and Engineering: A, Vol. 327, pp. 224-232, (2002).
17. Yin, Z., Tao, S., Zhou, X. andDing, C., ''Particle in-flight behavior and its influence on the microstructure and mechanical properties of plasma-sprayed Al2O3 coatings'', Journal of the European Ceramic Society, Vol. 28, pp. 1143-1148, (2008).
18. Venkataraman, R. andKrishnamurthy, R., ''Evaluation of fracture toughness of as plasma sprayed alumina–13 wt.% titania coatings by micro-indentation techniques'', Journal of the EuropeanCeramic Society, Vol. 26, pp. 3075-3081, (2006).
19. Mostaghimi J. and Chandra S., ''Heat Transfer in Plasma Spray Coating Processes'', Advances in Heat Transfer, Vol. 40, pp. 143-204, (2007).
20. Fauchais, P., Rat, V., Delbos, C., Coudert, J.F., Chartier, T. andBianchi, L., ''Understanding of suspension DC plasma spraying of finely structured coatings for SOFC, Plasma Science'', IEEE Transactions on, Vol. 33, pp. 920-930, (2005).
21. Yugeswaran, S., Selvarajan, V., Vijay, M., Ananthapadmanabhan, P.V. andSreekumar, K.P., ''Influence of critical plasma spraying parameter (CPSP) on plasma sprayed Alumina–Titania composite coatings'', Ceramics International, Vol. 36, pp. 141-149, (2010).
22. Venkataraman, R., Pabla Singh, S., Venkataraman, B., Das, D.K., Pathak, L.C., Ghosh Chowdhury S. and et al., ''A scanning electron microscopic study to observe the changes in the growth morphology of the α phased Alumina–13 wt.% titania coatings during plasma spraying'', Surface and Coatings Technology, Vol. 202, pp. 5074-5083, (2008).
23. Lv, H., Zhao, W., An, Q., Nie, P., Wang, J. andChu, P.K., ''Nanomechanical properties and microstructure of ZrO2/Al2O3 plasma sprayed coatings'', Materials Science and Engineering: A, Vol. 518, pp. 185-189, (2009).
24. Singh, V.P., Sil A. and Jayaganthan R., ''A study on sliding and erosive wear behaviour of atmospheric plasma sprayed conventional and nanostructured aluminacoatings'', Materials & Design, Vol. 32, pp. 584-591, (2011).
25. Fang, J.C., Xu, W.J., Zhao, Z.Y. andZeng, H.P.,''In-flight behaviors of ZrO2 particle in plasma spraying'', Surface and Coatings Technology, Vol. 201, pp. 5671-5675, (2007).
26. Nakamura,T.,Qian, G. andBerndt, C.C.,''Effects of Pores on Mechanical Properties of Plasma-Sprayed Ceramic Coatings'', Journal of the American Ceramic Society, Vol. 83, pp. 578-58, (2004).
27. Hawthorne, H.M., Arsenault, B., Immarigeon,J.P., Legoux, J.G. and Parameswaran,V.R., ''Comparison of slurry and dry erosion behaviour of some HVOF thermal sprayed coatings'', Wear, Vol. 229-225, pp. 825-83, (1999).
ارسال نظر در مورد این مقاله
CAPTCHA Image

فایل ها

هم رسانی

ارجاع به این مقاله

آمار