Pengaruh Jarak Nozzle dan Tekanan Gas pada Proses Pelapisan FeCrBMnSi dengan Metode Wire Arc Spray terhadap Ketahanan Thermal

Muhammad Suchaimi, Rochman Rochiem, Hariyati Purwaningsih
Submission Date: 2017-01-12 12:18:13
Accepted Date: 2017-03-17 10:12:43

Abstract


Low Temperature Hot Corrosion (LTHC) merupakan jenis hot corrosion yang terjadi pada temperatur 700-800°C dan biasa terjadi pada sudu-sudu turbin uap. Akibatnya material pada sudu turbin tersebut mengalami keretakan maupun penurunan efisiensi putaran. Perlindungan terhadap hot corrosion dengan cara memberikan penghalang antara substrat dengan lingkungan salah satunya menggunakan metode pelapisan permukaan logam yaitu wire arc spray. Penelitian ini bertujuan untuk menganalisis pengaruh jarak nozzle dan tekanan gas pada pelapisan FeCrBMnSi dengan metode wire arc spray terhadap ketahanan thermal. Dari parameter jarak nozzle dan tekanan gas yang digunakan, didapatkan parameter terbaik yaitu pada jarak 400 mm dan tekanan gas 3 bar yang mempunyai kekuatan lekat sebesar 22,58 MPa dengan persentase porositas 5,93% dan nilai kekasaran permukaan sebesar 16,36 μm. Sedangkan pada pengujian thermal cycle yang dilakukan dengan cara pemanasan dan pendinginan secara kontinyu, pada permukaan coating terbentuk senyawa oksida Fe3O4 yang menyebabkan perambatan retak dan delaminasi. Selain itu kekerasan lapisan coating meningkat akibat adanya senyawa precipitate boride (Fe9B)0,2.

Keywords


Coating; Wire Arc Spray; FeCrBMnSi; Nozzle Distance; Gas Pressure; Thermal Resistance

References


Sarikaya, Ozkan. 2005. Effect of the Substrate Temperature SS304L On Properties of Plasma Sprayed Al2O3 Coatings. Materials and Design 26, 53-57.

Wang, X., Heberlein, J., Pfender, E., Gerberich, W., Effect of Nozzle Configuration, Gas Pressure, and Gas Type on Coating Properties in Wire Arc Spray, JTTEE5 8:565-575 (1999).

Daengmool, Reungruthai, Sitichai Wirijanupathum, Sukanda J., Apicat Sopadang. Effect of Spray Parameter on Stainless Steel Arc Sprayed Coating. MP03 (2006).

Dybkov. 2016. Basic of Formation of Iron Boride Coatings. Department of Physical Chemistry of Inorganic Materials, Institute of Problems of Materials Science, National Academy of Sciences of Ukraine : Ukraine.

Kaufmann, E.N. 2003. Characterization Of Materials: Volumes 1 and 2. Hoboken: John Wiley & Sons.

Suherman, Wahid. 1999. Ilmu Logam 2. Surabaya : ITS Press.

Chaitanya. 2007. Processing and Characterization of Nickel-Aluminide Coating On Metal Substrates. Master of Technology In Mechanical Engineering Thesis. National Institute of Technology, Roukela.

Yuping Wu, Pinghua, Lin. Guozhie Xie. 2006. Formation of Amorphous and Nanocrystalline Phase in High VelocityOxy-Fuel Thermally Sprayed a Fe-Cr-B-Mn-Si Alloy. Materials Science Engineering. A 430 34-39.

Antunes, Jose Fernando, Brito, Vinisius Ribeiro dos Santos de Sa, Bastos, Ivan Napoleao, Costa, Hector Reynaldo Meneses. 2013. Characterization of FeCr and FeCoCr alloy Coatings of Carbon Steels for Marine Environment Applications. Applied Adhesion Science 2013 1:3.

Fernando , Jose Antunes. 2013. Characterization of FeCr and FeCoCr alloy coatings of carbon steels for marine environment applications. Adhesion Science, 1:3.

Ran, Li. 2013. Microstructure and High-Temperature Oxidation Behavior of Wire-Arc Sprayed Fe Based Coating. Beijing University of Technology. Beijing. China.

Zheng, Z.B, Zheng, Y.G, Sun, W.H. 2015. Effect of Heat Treatment On The Structure, Cavitation Erosion and Erosion Corrosion Behaviour of Fe-Based Amorphous Coating. Tribology International Author’s Manuscript.


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