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结晶器喂稀土线生产的 16 Mn REL连铸板坯终轧后中板表面出现了龟纹缺陷。利用金相显微镜、扫描电镜和能谱微区分析等手段 ,研究了表面缺陷形成机制 ,阐明了缺陷的形成过程 ,指出了防止途径。
16 Mn REL continuous casting billet produced by the mold fed by rare earth wire had moire defects on the surface of the middle plate after finishing rolling. The formation mechanism of surface defects was studied by means of metallographic microscope, scanning electron microscopy and energy spectrum microanalysis. The formation process of defects was clarified and the way of prevention was pointed out.