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对Q345B板带的冷弯断口进行形貌扫描,结合能谱微区分析,确定硫化物夹杂是产生木纹状断口的首要因素;同时,中心偏析、卷渣和带状组织的情况也应给予关注。
The morphological scanning of cold bending fracture of Q345B strip and the analysis of energy spectrum microanalysis to determine sulfide inclusions are the primary factors to produce woody fractures. At the same time, the conditions of center segregation, entrainment and banding should also be given attention.