Analysis of Fracture Causes and Improvement Measures for YL82B Deep Processing of Steel Strands
The macroscopic morphology,chemical composition,metallographic structure,and non-metallic inclusions of the brittle fracture surface of 82B wire rod were detected using a direct reading spectrometer and an optical microscope.The microscopic morphology of the brittle fracture surface was observed using a scanning electron microscope.The main reason for the abnormal fracture of YL82B wire rod was found to be the severe cold work hardening abnormal structure generated at the surface scar of the wire rod,which led to abnormal fracture during later deep processing.
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