Xu Mengchun, Li Dejun, Chen Dong, Yu Fuzhi, Jin Xing. Cause Analysis of Central Cracks in SPA-H Steel[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(5): 167-172. doi: 10.7513/j.issn.1004-7638.2018.05.029
Citation:
Xu Mengchun, Li Dejun, Chen Dong, Yu Fuzhi, Jin Xing. Cause Analysis of Central Cracks in SPA-H Steel[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(5): 167-172. doi: 10.7513/j.issn.1004-7638.2018.05.029
Xu Mengchun, Li Dejun, Chen Dong, Yu Fuzhi, Jin Xing. Cause Analysis of Central Cracks in SPA-H Steel[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(5): 167-172. doi: 10.7513/j.issn.1004-7638.2018.05.029
Citation:
Xu Mengchun, Li Dejun, Chen Dong, Yu Fuzhi, Jin Xing. Cause Analysis of Central Cracks in SPA-H Steel[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(5): 167-172. doi: 10.7513/j.issn.1004-7638.2018.05.029
Central crack frequently occurred in the forming of a kind of SPA-H steel sheet.The cause for central crack had been investigated by analysis of the chemical composition, metallurgical structure and EDS.It is found out that ferrite segregation band exists in the center of steel sheet, and there are a lot of MnS inclusions in segregation zone, which is expected the main reason for the central crack during process steel sheet.Accordingly the counter measurement has been proposed to solve the central cracks in SPA-H steel sheet.
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