Inclusion Optimization for Next Generation Steel Products

Cramb, Dr. Sridar Seetharaman: Dr. Alan

Carnegie-Mellon University

关键词: Steel;    Oxygen;    Oxides;    Oxygen Potential;    Inclusions, Undercooling;   

RP-ID  :  None
RP-ID  :  FC36-97ID13554
RP-ID  :  878645

美国|英语

来源: UNT Digital Library

【 摘 要 】

The project objective is to determine the conditions under which the inclusions in liquid steel can act as heterogeneous nucleants for solidification. The experimental approach consisted of measuring the undercooling of a pure iron droplet in contact with different oxides to determine which oxides promote iron solidification by providing a suitable surface for nucleation and which oxides and under which conditions the metal can be deeply undercooled. The conclusions suggest that deep undercoolings are possible at low oxygen content provided the oxygen potential is such that substrate decomposition does not occur. If the oxygen content increases the undercooling decreases.