Abstract
This research investigates the failure of stainless steel components in power grid equipment, specifically examining how casting and forging processes affect structural integrity. The focal point is an early fracture of a part initially identified as a universal joint on the B-phase deflection arm. Macroscopic examination, spectral testing, microscopic observation, and Energy Dispersive Spectroscopy (EDS) analysis were used to pinpoint the failure's cause and evaluate casting and forging techniques. Replicas of various manufacturers' fractured and forged stainless steel parts were prepared using portable direct current electrolytic corrosion technology for direct study. The findings showed clear structural variances and elemental segregation patterns, with forged samples demonstrating superior mechanical attributes. These discoveries underscore the importance of appropriate manufacturing processes for ensuring the reliability and performance of stainless steel parts in power grid equipment. They also contribute to improved design and material selection practices in similar contexts.
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