摘要
通过对裂纹处显微组织的分析,研究了热轧船板表面裂纹产生的原因。结果表明,船板表面裂纹来源于铸坯表面的原始微裂纹和钢中低熔点合金元素引起的轧件不均匀变形,据此提出了相应的改进措施。
The causes of surface cracks on hot rolled hull plate have been investigated by analyzing microstructure at location of cracking. The results reveal that the surface cracks on hull plate originated from initial microcrack on the slab surface and nonuniform deformation of rolling piece cuased by alloying elements of low melting point, thus relevant improvement measures are raised.
出处
《宽厚板》
2011年第3期9-13,共5页
Wide and Heavy Plate
关键词
船板
表面裂纹
显微组织
成因分析
Hull plates, Surface crack, Microstructure,Cause analysis
