Abstract
Despite considerable attention in the literature on the origin and effects of chemical segregation in steels and the resultant effect on microstructure, the focus has been mainly on carbon and manganese, with minimum attention paid to other alloying additions, and none on the role of aluminium. Therefore, a systematic study of the effect of aluminium on segregation and banding in multiphase steel is presented here. It is shown that Al segregates preferentially to the solid during solidification, in contrast to the other elements which segregate preferentially to the liquid. In addition to the segregation and the resultant continuous band at the centre-line, it has been demonstrated that interdendritic segregation during casting leads to microstructural banding. Furthermore a new numerical model is presented for predicting the effect of carbon, aluminium, manganese, silicon and chromium on the austenite to ferrite transformation temperature, Ae3.
| Original language | English |
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| Publication status | Published - 2015 |
| Event | 6th Baosteel Biennial Academic Conference: CSM Steel Congress - Baosteel, Shanghai, China Duration: 19 Oct 2015 → 22 Oct 2015 http://bac.baosteel.com/baosteel_bac4/portal2/mana/view_nodes.jsp?catalogId=default&nodeId=1001 |
Conference
| Conference | 6th Baosteel Biennial Academic Conference |
|---|---|
| Abbreviated title | BAC2015 |
| Country/Territory | China |
| City | Shanghai |
| Period | 19/10/15 → 22/10/15 |
| Internet address |
Keywords
- Steel; casting; segregation; phase transformation; thermomechanical processing