【摘要】 采用铸坯低倍检验、原位分析、扫描电镜等方法,分别对高强船板成分优化前后的低倍、偏析和拉伸断口进行对比分析。试验结果表明:优化后的高强船板铸坯低倍及元素偏析明显好于优化前,同时拉伸断口分层也得到明显改善,合格率显著提高。更多还原

【Abstract】 In this paper,the macrostructure,segregation and tensile fracture of high strength ship plates before and after composition optimization were comparatively analyzed by means of casting slab macrostructure,original position statistic distribution analysis and SEM and so on.The results show that the macrostructure and segregation of the casting slab was better after optimization, the tensile fracture caused layers was distinctly improved and percent of pass was also obviously increased.更多还原