A novel metallurgical bonding process and microstructural analysis of ferrous alloy composites

Publisher:
Institute of Materials Engineering Australasia Ltd
Publication Type:
Journal Article
Citation:
Materials Forum, 2005, 29 pp. 83 - 88
Issue Date:
2005-01
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A group of ferrous alloy composites have veen produced using a novel vacuum casting process. The bonding and the interfacial analysis of these composites has been studied using various techniques including: optical microscopy, energy dispersive spectroscopy (EDS) microanalysis, X-ray mapping (XRM and electron back scattered diffraction (EBDS). A number of phase changes and unique microstructural features have been observed. Some of thes microsturctural features are the result of the solidification process, whilst other changes have resulted from diffusion of elements across the composite interface. This study demonstrates the uniqueness of the vacuum casting process as an efficient bonding process and the importance of comparing data from a variety of analytical techniques to enable a thorough model of the solidification and diffusion processes to be properly developed.
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