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Cause Analysis and Corrective Measures of Disqualification in Ultrasonic Flaw Detection for S355J2 Steel Plate
Pages: 24-26,33
Year: Issue:  1
Journal: Wide and Heavy Plate

Keyword:  探伤中心偏析裂纹夹杂物;
Abstract: 通过光学显微镜、电子探针等科研手段,对S355J2钢板探伤不合试样进行研究.结果表明,探伤不合的主要原因是钢板基体存在中心偏析、内部裂纹以及夹杂物等.经过对冶炼、连铸及轧钢、热处理工艺加以改进,提高了钢板的内部质量及探伤合格率.
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