Pengujian Mekanis dan Korosi pada Weld Overlay Pipa API 5L X65 Hasil Pengelasan GTAW
Abstract
Pelapisan (cladding) material corrosion resistant alloy (CRA) menggunakan Inconel 625 memadukan properti ketahanan korosi Inconel 625 dan kekuatan (high strength) pipa baja API 5L X65. Sampel lapisan CRA difabrikasi dengan pengelasan Pulsed Gas Tungsten Arc Welding (GTAW). Filler metal ERNiCrMo-3 dengan dua merk yang berbeda, yaitu RW625 dan NM625, digunakan sebagai material CRA. Pengujian non-destruktif berupa visual testing, liquid penetrant testing dan ultrasonic testing menunjukkan tidak terdapat cacat pengelasan pada deposisi lapisan CRA maupun antar-muka lapisan CRA dan base metal. Pengujian kekerasan Vickers menunjukkan NM625 memiliki nilai kekerasan 228 ±8,8 HV10 (layer 1) dan 231.6 ±10,8 HV10 (layer 2), sedangkan RW625 memiliki nilai kekerasan 203.4 ±8,1 HV10 (layer 1) dan 213.6 ±6,3 HV10. Kedua filler metal menghasilkan nilai Pitting Resistance Equivalent Number (PREN) yang sama 48, yang menunjukkan kedua filler metal memiliki properti ketahanan korosi yang sama.
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V. Shankar, B. S. Rao and S. L. Mannan, "Microstructure and mechanical properties of Inconel 625 superalloy," Journa of Nuclear Materials, vol. 288, pp. 222-232, 2001.
C. P. Alvaraes, J. C. F. Jorge, L. F. G. de Souza, L. S. Araujo, M. C. Mendes and H. N. Farneze, "Microstructure and corrosion properties of single layer Inconel 625 weld cladding obtained by the electroslag welding process," Journal of Materials Research and Technology, vol. 9, no. 8, pp. 16146-16158, 2020.
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S. Aramco, Weld Overlayed Fittings, Flanges, and Spool Pieces (02-SAMSS-012), Aramco Materials Engineering Standards Comittee, 2016.
R. A. Lorenzoni, R. A. Gasparini, M. C. Macêdo and E. A. Ponzio, "Influence of heat input and chemical dilution on Critical Pitting Temperature of coatings from Inconel 625 deposited by PTA-P," in Intercorr 2016, Rio de Janeiro, 2016.
B. Barbosa, S. Tavares, A. Cobuci and M. de Macêdo, "Influence of Microstructure on Pitting Corrosion Resistance of Alloy 904L Superaustenitic Stainless Steel," Corrosion, vol. 68, no. 8, pp. 739-746, 2012.
M. Kimura, K. Suzuki, M. Kusaka and K. Kaizu, "Effect of friction welding condition on joining phenomena, tensile strength, and bend ductility of friction welded joint between pure aluminium and AISI 304 stainless steel," Journal of Manufacturing Processes, vol. 25, pp. 116-125, 2016.
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NACE International, Petroleum and natural gas indusstries: Materials for use in H2S-containing environment in oil and gas production, NACE International, 2001.
P. R. Roberge, Corrosion Engineering: Principples and Practice, The McGraw-Hill Companies, Inc., 2008.
S. Papavinasam, Corosion Control in the Oil and Gas Industry, Elsevier, 2014.
H. S. Klepper, N. S. Zadorosne and R. B. Rebak, "Localized corrosion characteristics of nickel alloys: A review," Acta Metalurgica Sinica (English Letters), vol. 30, pp. 296-305, 2017.
K. L. Cwalina, C. R. Demarest, A. Y. Gerard and J. R. Scully, "Revisiting the effects of molybdenum and tungsten alloying on corrosion behavior of nickel-chromium alloys in aqueous corrosion," Current Opinion in Solid State and Materials Science, vol. 23, pp. 129-141, 2019.
Published
2023-06-30
How to Cite
ARIYANTO, Nugroho Pratomo et al.
Pengujian Mekanis dan Korosi pada Weld Overlay Pipa API 5L X65 Hasil Pengelasan GTAW.
JURNAL TEKNOLOGI DAN RISET TERAPAN (JATRA), [S.l.], v. 5, n. 1, p. 21-26, june 2023.
Available at: <http://704209.wb34atkl.asia/index.php/JATRA/article/view/5520>. Date accessed: 28 nov. 2024.
doi: https://doi.org/10.30871/jatra.v5i1.5520.
Section
Research Articles
