Tegangan Ambang pada Sambungan Las CDW antara Baja dan Kuningan dalam Lingkungan Korosif


  • Osmar Buntu Lobo Politeknik Negeri Fakfak
  • Djarot Bangun Darmadi Universitas Brawijaya
  • Oyong Novareza Universitas Brawijaya




Threshold Stress, Stress Corrosion Cracking, Constant Load Test, Capacitive Discharge Welding


Failure at the welded joint can be occurs due to the Stress Corrosion Cracking (SCC) phenomenon. Dissimilar welding is more susceptible to SCC when compared to similar welding. This can be occurs because the material or metal that connected is non-homogeneous material. which causes the material will be difficult to be combined perfectly. This study aims to determine the threshold stress (σTh) at the dissimilar welded joint between steel and brass which have SCC loads. Both materials were connected by the welding method by using a Capacitive Discharge Welding (CDW) welding machine. Surface preparation or surface treatment is applied to one of the basic materials (low carbon steel) to obtain optimal joint results. The welded joint was tested by using Constant Load Test (CLT) methods, which is engineered in such a way that the welded joint get the stress,  corrosive environment (1M NHO3 solutions) and voids produced by the weld joint itself. The result shows that the threshold stress of the dissimilar welding joint between steel and brass by the CDW method is 330 MPa.


NATIONAL ENERGY BOARD, “Stress Corrosion Cracking on Canadian Oil and Gas Pipelines.†MH-2-95, NEB, Calgary, Alberta, Canada, 1996.

A. TURNBULL, “Stress Corrosion Cracking : Mechanisms,†in Encyclopedia of Materials: Science and Technology, no. I, Elsevier Ltd, 2001, pp. 1–6.

R. H. JONES, “Materials Performance and Evaluation,†in Stress Corrosion Cracking, Ohio: ASM, Materials Park, 1992.

V. S. RAJA and T. SHOJI, Stress corrosion cracking-Theory and practice. New Delhi: Woodhead Publishing Limited, 2011.

D. B. DARMADI, N. A. SUGIARTO, and F. GAPSARI, “Stress Corrosion Cracking at ASTM A36 Plate with Varied Grain Orientation,†Int. Rev. Mech. Eng., vol. 12, p. 987, Dec. 2018.

SUDARSONO, D. B. DARMADI, and F. GAPSARI, “Analisis Stress Corrossion Cracking Sambungan Las Gas Tungsten Arc Welding Spesimen Aluminium sebelum dan sesudah Stress Relieving,†Universitas Brawijaya, 2018.

R. A. COTTIS, “Guides to Good Practice in Corrosion Control-Stress Corrosion Cracking,†in Corrosion and Protection Centre, United Kingdong: National Physical Laboratory, 2000.

D. B. DARMADI, F. TEKNIK, and J. MESIN, “Model Termal Proses Pengelasan Keliling Multipass Pada Sambungan Pipa API-X70,†Rekayasa Mesin, vol. 5, no. 3, pp. 253–261, 2014.

Y. F. CHENG, Stress Corrosion Cracking of Pipelines, 1st ed. New Jersey: John Wiley & Sons, Inc., 2013.

H. LONG, Y. HU, X. JIN, J. SHAO, and H. ZHU, “Effect of holding time on microstructure and mechanical properties of resistance spot welds between low carbon steel and advanced high strength steel,†Comput. Mater. Sci., vol. 117, pp. 556–563, 2016.

N. SCOTCHMER, “The Current Rise in the Use of Capacitor Discharge Welding,†Weld. J., vol. 94, no. 2, pp. 32–36, 2015.

DCC CORPORATION, “Stud Welding Equipment, Stud Welders, Weld Stud Fasteners, Parts, Stud Welder Rentals & Repairs,†DCC Corporation, 2013. [Online]. Available: http://catalog.dcccorporation.com/viewitems/thermocouple-wire/thermocouple-wire-2. [Accessed: 12-Sep-2019].

SUNBELT, SUNBELT Master Catalog-Product Spesification and Aplication Guide. Texas: Sunbelt Stud Welding, Inc.

IMAGE, “The Stud Welding Process,†IMAGE INDUSTRI INC. [Online]. Available: https://www.imageindustries.com/what-is-stud-welding/. [Accessed: 12-Sep-2019].

F. W. PANELLA, V. DATTOMA, M. DE GIORGI, F. PALANO, and A. CAROFALO, “CDW aluminium joints welding and optimisation with NDT/mechanical testing,†Int. J. Adv. Manuf. Technol., no. 102, pp. 3689–3698, 2019.

V. DATTOMA, F. PALANO, and F. W. PANELLA, “Mechanical and technological analysis of AISI 304 butt joints welded with capacitor discharge process,†Mater. Des., vol. 31, no. 1, pp. 176–184, 2010.

G. CASALINO and F. W. PANELLA, “Numerical simulation of multi-point capacitor discharge welding of AISI 304 bars,†J. Eng. Manuf., vol. 220, pp. 647–655, 2006.

G. CASALINO and F. W. PANELLA, “Microstructural analysis of AISI 304 bars welded with high speed pulsed discharges,†J. Mater. Process. Technol., vol. 191, pp. 149–152, 2007.

F. PALANO, S. CHIOZZI, F. W. PANELLA, and V. DATTOMA, “Characterization of Steel Welded Joints with Hybrid Projection and Prosesses,†Mater. Manuf. Prosesses, 2012.

K. R. TRETHWEY and J. CHAMBERLAIN, Corrosion for Science and Engineering. England: Pub. Longman Scientific & Technical, 1996.

B. ISECKE, “Test Methods for Assesssing the Susceptiblity of Prestressing Steels to Hydrogen Induced SCC,†Eur. Fed. Corros. Publ., 2004.

M. SHAKIL, N. H. TARIQ, M. AHMAD, M. A. CHOUDHARY, J. I. AKHTER, and S. S. BABU, “Effect of ultrasonic welding parameters on microstructure and mechanical properties of dissimilar joints,†Mater. Des., vol. 55, pp. 263–273, 2014.

S. M. PATNAIK, “Development of an Automated Capacitor Discharge Welding System,†Oregon State University, 1996.

J. LUO, Z. ZHOU, X. CAO, C. ZOU, and C. ZOU, “Microstructure and Failure Analysis of Resistance Projection Welding of Nuts to AHSS with Capacitor Discharge Welding,†vol. 59, no. 2, pp. 305–311, 2019.

L. P. ARENDSEN, R. THAKAR, and H. SULTAN, “The Use of Copper as an Antimicrobial Agent in Health Care , Including Obstetrics and Gynecology,†Clin. Microbiol. Rev., vol. 32, no. 4, pp. 1–28, 2019.

N. CIACOTICH, K. N. KRAGH, M. LICHTENBERG, J. E. TESDORPF, T. BJARNSHOLT, and L. GRAM, “In Situ Monitoring of the Antibacterial Activity of a Copper – Silver Alloy Using Confocal Laser Scanning Microscopy and pH Microsensors,†Glob. Challenges, 2019.

AMERICAN SOCIETY FOR TESTING MATERIALS, ASTM G49 - 85(2000), Standard Practice for Preparation and Use of Direct Tension Stress-Corrosion Test Specimens. West Conshohocken, PA: ASTM International, 2000.

W. DIETZEL, A. TURNBULL, S. S. RAMANAN, and S. ARUN, Stress Corrosion Cracking, no. February 2016. Elsevier Inc., 2017.