On the Role of Aluminium in Segregation and Banding in Multiphase Steel
In this work we have concentrated on the effect of aluminium on the formation of segregation during casting and the resultant effect on the microstructure and properties of multiphase steel.Different processing conditions were applied on the basis of model calculations in order to promote and suppress banding in segregated and non-segregated steel.It is shown that Al segregates preferentially to the solid during solidification,in contrast to the other elements which segregate preferentially to the liquid and increasing Al content leads to a increased partitioning of the other chemical elements.It has been shown experimentally,and in good agreement with the predicted model calculations,that the effect of segregation second phase banding can be suppressed.The tensile behaviour of all the variants is identical up to the yield point,but the non-banded samples show a much higher tensile strength with similar levels of ductility to the banded samples.
steel casting segregation phase transformation thermomechanical processing
Ennis Bernard Mostert Richard Jimenez-Melero Enrique Lee Peter
Tata Steel,PO Box 10000,1970 CA IJmuiden,The Netherlands;The School of Materials,The University of M Tata Steel,PO Box 10000,1970 CA IJmuiden,The Netherlands The School of Materials,The University of Manchester,Oxford Road,Manchester,M13 9PL,UK
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上海
英文
1-6
2015-10-21（万方平台首次上网日期，不代表论文的发表时间）