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Open AccessArticle

Stress Corrosion Cracking Threshold for Dissimilar Capacitive Discharge Welding Joint with Varied Surface Geometry

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Joining and Welding Research Group (J-WERG) – Mechanical Engineering Department, University of Brawijaya, Malang 65145, Indonesia
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Laboratory of Metrology Industry – Mechanical Engineering Department, University of Brawijaya, Malang 65145, Indonesia
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Mechanical Engineering Department, FakFak State Polytechnic, FakFak 98611–Papua Barat, Indonesia
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Zepler Institute for Photonics and Electronics, University of Southampton, Southampton SO17 1 BJ, UK
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Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(6), 2180; https://doi.org/10.3390/app10062180
Received: 15 February 2020 / Revised: 13 March 2020 / Accepted: 20 March 2020 / Published: 23 March 2020
(This article belongs to the Section Nanotechnology and Applied Nanosciences)
Stress corrosion cracking (SCC) is known as a major factor that should be considered in the assessment of welding joint structure integrity. Despite the promising and wide application of dissimilar metal joints, the currently available SCC mitigation technique of dissimilar metal joints is not adequate. The challenge is to obtain a good joint while different melting points exist. This article reports a novel SCC mitigation method on a brass–steel dissimilar metal joint by modifying the geometry of the surface. It is evidenced that the sharpened steel (α1 specimen) significantly improves the SCC resilience of the joint. The evaluation of SEM/EDS photos reveals that the α1 geometry induces a smaller pore area around brass–steel micro-joint interfaces which in turn produces stronger joints. View Full-Text
Keywords: capacitive discharge welding; stress corrosion cracking; stress corrosion cracking threshold; dissimilar welding capacitive discharge welding; stress corrosion cracking; stress corrosion cracking threshold; dissimilar welding
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MDPI and ACS Style

Djarot, D.B.; Gapsari, F.; Lobo, O.B.; Simanjuntak, F.M. Stress Corrosion Cracking Threshold for Dissimilar Capacitive Discharge Welding Joint with Varied Surface Geometry. Appl. Sci. 2020, 10, 2180.

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