Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9807
Title: Effect of homogenisation treatment on segregation of silicon in ferritic ductile irons: A colour metallographic study
Authors: Yeung, CF
Zhao, H
Lee, WB 
Issue Date: 1999
Publisher: Maney Publishing
Source: Materials science and technology, 1999, v. 15, no. 7, p. 733-737 How to cite?
Journal: Materials science and technology 
Abstract: Microsegregation strongly affects the properties of ferritic ductile irons. A homogenisation treatment was attempted to decrease such segregation. The severity of segregation can be determined with microprobe analysis, but this technique cannot reveal the morphology of segregation on a larger scale. The present investigation was undertaken to explore the use of colour metallography for revealing the severity of segregation both qualitatively and quantitatively during the homogenisation treatment. The modification of the morphology of segregation of silicon during homogenisation treatment for different times was revealed clearly by colour metallographic techniques. The proportion of interdendritic areas to the total matrix area was quantified. A semi-quantitative relationship between the difference in the sequence of colour and the degree of segregation of silicon inferritic ductile iron was developed with the use of a combination of a colour metallographic technique and microprobe analysis.
URI: http://hdl.handle.net/10397/9807
ISSN: 0267-0836
EISSN: 1743-2847
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