Failure Analysis of High Pressure Shaft Pump Sea Water Reverse Osmosis in the Labuhan Angin Generation Business Unit
DOI:
https://doi.org/10.59261/jequi.v8i4.421Keywords:
Failure Analysis, Power Plant, Pump, Shaft, Water TreatmentAbstract
Background: UBP Labuhan Angin relies on the high-pressure (HP) pump in the seawater reverse osmosis system to maintain the availability of boiler feedwater and the readiness of the power plant. Repeated shaft failures may disrupt the water-treatment process and compromise the reliability of electricity generation.
Objective: This study analyzed the factors contributing to the failure of the HP pump shaft at UBP Labuhan Angin.
Methods: The study employed chemical composition testing, macrographic and micrographic examinations, scanning electron microscopy, and Vickers hardness testing.
Results: The findings showed that the hardness values of Materials A and B were nonuniform and lower than the reference value for AISI 440A. Material A had a lower carbon content, whereas Material B had a lower chromium content than the specified ranges. Fractographic and microstructural observations indicated brittle fracture, crack initiation in the central area, chromium carbide precipitation, and nonuniform effects of heat treatment.
Conclusion: The shaft failure was associated with deviations in chemical composition, insufficient and nonuniform hardness, brittle fracture characteristics, and an inappropriate heat-treatment process, which reduced the material's resistance to cyclic operational loads.
Downloads
References
Amin, M. K., Sulardjaka, & Saptadi, S. (2023). Performance Analysis And Techno Economy Of Post Overhaul Circulating Fluidized Bed Boiler Pltu. International Journal Of Engineering And Computer Science, 6(1), 12–18. https://doi.org/10.21744/Ijecs.V6n1.2171
Dwiyoga, M. A. (2024). Pengaruh Kenaikan Tegangan Dc Dan Konsentrasi Baking Soda 1, 2 Dan 3 Wt% Terhadap Elektron Transport Fasa H2o Pada Air Demineralisasi Dan Air Kondensasi [Universitas Sultan Ageng Tirtayasa]. https://eprints.Untirta.Ac.Id/44329/
Herdiana, A., & Abidin, Z. (2023). Rancang Bangun Mesin Poles Untuk Proses Metalografi. Seminar Teknologi Majalengka (STIMA), 7, 92–100.
Inyang, U. E., & Olughu, C. O. (2025). The Importance Of Boiler Feed Water And Its Treatment In A Chemical Plant. World Journal Of Advanced Research And Reviews, 27(1), 1624–1632. https://doi.org/10.30574/Wjarr.2025.27.1.2705
Joniarta, I. W., Dika, A. A., & Wijana, M. (2024). Analisis Efisiensi Pompa Sentrifugal Pada Desalinasi Dengan Proses Reverse Osmosis: Analysis Of Centrifugal Pump Efficiency In Desalination With The Reverse Osmosis Process. Energy, Materials And Product Design, 3(2), 213–223. https://doi.org/10.29303/Empd.V3i2.5429
Kultamaa, M. (2022). Functional Stainless Steel Porous Structures By Metal Injection Molding (Mim). Itä-Suomen Yliopisto.
Kwak, K., Mine, Y., Morito, S., Ohmura, T., & Takashima, K. (2022). Correlation Between Strength And Hardness For Substructures Of Lath Martensite In Low- And Medium-Carbon Steels. Materials Science And Engineering: A, 856, 144007. https://doi.org/10.1016/J.Msea.2022.144007
Lee, G. H., Park, M., Kim, B., Jeon, J. B., Noh, S., & Kim, B. J. (2023). Evaluation Of Precipitation Phase And Mechanical Properties According To Aging Heat Treatment Temperature Of Inconel 718. Journal Of Materials Research And Technology, 27, 4157–4168. https://doi.org/10.1016/J.Jmrt.2023.10.196
Li, Z., Zhang, Z., Chen, Y., Wang, Y., Du, Z., Zhang, Q., Huang, K., Su, Y., Wen, G., & Chen, X. (2026). In-Situ Optical Emission Spectroscopy Monitoring Of Laser Powder Bed Fusion Based On Spectral Data Prior Knowledge And Feature-Decision Level Fusion Network. Mechanical Systems And Signal Processing, 254, 114406.
Lough, C. S., Escano, L. I., Qu, M., Smith, C. C., Landers, R. G., Bristow, D. A., Chen, L., & Kinzel, E. C. (2020). In-Situ Optical Emission Spectroscopy Of Selective Laser Melting. Journal Of Manufacturing Processes, 53, 336–341. https://doi.org/10.1016/J.Jmapro.2020.02.016
Łukaszczyk, A., Banaś, J., Pisarek, M., Seyeux, A., Marcus, P., & Światowska, J. (2021). Effect Of Cr Content On Corrosion Resistance Of Low-Cr Alloy Steels Studied By Surface And Electrochemical Techniques. Electrochem, 2(4), 546–562. https://doi.org/10.3390/Electrochem2040035
Ma, Q.-L., Zhu, X.-D., Zhao, P.-Y., Hong, R., Li, B., Liu, Q.-Y., Shang, C.-J., & Jia, S.-J. (2026). Fundamental Understanding Of Microstructure And Cr On Supercritical Co2 Corrosion Resistance Of High-Strength Low-Alloy Steels. Journal Of Iron And Steel Research International, 33(4), 105.
Manurung, V. A. T., Wibowo, Y. T. J., & Baskoro, S. Y. (2020). Panduan Metalografi. Lp2m Politeknik Manufaktur Astra. Https://Repository.Polytechnic.Astra.Ac.Id/Files/Original/0fc5fc6144704d42442012e7e169fdf5573da7cb.Pdf
Murmu, S., Chaudhary, S. K., & Rajak, A. K. (2022). Effect Of Heat Treatment On Mechanical Properties Of Medium Carbon Steel Welds. Materials Today: Proceedings, 56, 964–970.
Ovri, H., Ohaukwu, C. J., Bahadirov, K., Larsen, M., & Kjeldsteen, P. (2010). As-Sintered Aisi 440c Stainless Steels With Improved Hardness And Corrosion Resistance. International Journal Of Powder Metallurgy, 46(6), 43–50. https://Publications.Hereon.De/Id/32570/
Rifai, A., Hartaja, D. R. K., Sulaeman, O., Setiadi, I., Ikhsan, I. N., Darmawangsa, M. R., Ardiana, C., Sofian, A., & Yunus. (2024). Pengaruh Tekanan Pada Reverse Osmosis Terhadap Penyisihan Kadar Ion Klorida (Cl-) Dan Total Dissolved Solids (TDS) Pada Pengolahan Air Payau. Jurnal Teknologi Lingkungan, 25(2), 300–307. https://doi.org/10.55981/Jtl.2024.705
Srivastava, K., Sinha, A. A., & Sahani, R. (2021). Effect Of Heat Treatment On Hardness And Toughness Of En8 Steel. Materials Today: Proceedings, 42(Part 2), 1297–1303. https://doi.org/10.1016/J.Matpr.2020.12.1015
Wahyudin, A. R., Raihan, A., Adrian, M. F., Agustian, R., Darian, M. A., Ramadhan A, M. F., Paundra, F., & Ito, Y. (2024). Analisis Dan Perawatan Pada Water Treatment Plant (Wtp) Pltu X. Perwira Journal Of Science & Engineering, 4(2), 86–93. https://doi.org/10.54199/Pjse.V4i2.306
Wulandari, F. A., & Alifah, A. S. A. N. (2026). Optimalisasi Transisi Energi Melalui Pembangkit Listrik Tenaga Nuklir Untuk Mewujudkan Clean Energy Di Indonesia. In Proceeding Legal Symposium (Vol. 4, Issue 1). https://doi.org/10.18196/Pls.V4i1.211
Yahya, H. M. (2024). Analisis Multiple Repair Dan Holding Time Post Weld Heat Treatment Material Sa 335 Grade P91 Dengan Proses Pengelasan Smaw Terhadap Nilai Kekerasan Dan Metalografi. In Conference On Welding Engineering And Its Application (Cwea) (Vol. 1, Issue 1, Pp. 7–14). Https://Journal.Ppns.Ac.Id/Index.Php/Cwea
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Wandi Pagar Asi Napitupulu, Fahmi Mubarok
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International (CC-BY-SA). that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
