Techniques for the production of thin foils from the interfacial regions of iron-zinc couples

• Published in: Materials characterization Vol. 30; no. 1; pp. 55 - 60
• Main Authors: Giannuzzi, Lucille A., Howell, Paul R., Pickering, Howard W., Bitler, William R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY Elsevier Inc 1993; Elsevier Science
• Subjects: Applied sciences; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Metals. Metallurgy; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Physics; Phase transformation; Transmission electron microscopy; Sample preparation; Electron diffraction; Solid solid interface; Ageing; Metallography; Experimental study; Microstructure; Microcrystal; Iron Zinc Alloys; Micrography
• ISSN: 1044-5803; 1873-4189
• DOI: 10.1016/1044-5803(93)90008-J

In an effort to characterize interfacial microstructures in FeZn bimetallic couples, various techniques for the production of thin foils for examination with the transmission electron microscope (TEM) were developed. Microcrystalline arrays were observed in bright-field transmission electron microscopy images in the vicinity of the FeZn interface. Selected-area diffraction pattern analyses of these microcrystalline regions indicated the presence of several intermetallic phases and/or mixtures of these phases. These phases might originate during ion-beam thinning. However, it is argued that they could also form during room temperature aging.