발간논문

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Vol.37, No.10, 1204 ~ 1213, 1999
Title
Solidification Microstructure of Strip Cast 304 Stainless Steel
표성규Sung G . Pyo,김재중Jae Joong Kim,김낙준Nack J . Kim
Abstract
A study has been made of the effects of strip casting process variables on the microstructure of strip cast SUS 304 stainless steel. The main impetus for the present investigation is to suggest the optimum process variables for the strip casting of SUS 304 stainless steel based on the systematic studies of microstructural evolution. Results slow that there is a variation of microstructure through the thickness of strip. Along the surface of strip, the microstructure consists of fine dendrite and cellular structure, and there is also a formation of α` martensite and mechanical twin due to the deformation by roll contact. On the other hand, microstructure in the middle of strip consists of equiaxed grains due to slow solidification rate and recalescence. One of the most important finding is that there is a depletion of Mn in the interdendrite region and the presence of amorphous Si-rich particle.
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