摘要
一些亚包晶合金钢连铸大方坯出现低倍星状裂纹,在一定的压缩比下经轧制仍不能完全消除这种低倍缺陷。经检验分析认为这种裂纹是缩孔与晶间裂纹的结合体,并提出了一些解决方法。
The star cracks in macrostructure appear in some hypo-peritectic continuous cast alloy blooms and these cracks cannot be stuck completely by hot rolling reduction ratio.macroetching testing and SEM.The results show that the crack is formed by acting of center void and intergranular cracks.Some technic modifcation of the smelting process is raise to prevent nucleation of the cracks.
出处
《物理测试》
CAS
2005年第6期32-35,共4页
Physics Examination and Testing
关键词
连铸坯
星状裂纹
管坯
continucus casting bloom
star crack
blank
