Study of the nanostructure of Gum Metal using energy-filtered transmission electron microscopy

✍ Scribed by T. Yano; Y. Murakami; D. Shindo; S. Kuramoto

• Book ID: 103998677
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 363 KB
• Volume: 57
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/j.actamat.2008.10.002

✦ Synopsis

The nanostructure of Gum Metal, which has many anomalous mechanical properties, was investigated using transmission electron microscopy with energy filtering. A precise analysis of the weak diffuse electron scattering that was observed in the electron diffraction patterns of the Gum Metal specimen revealed that Gum Metal contains a substantial amount of the nanometer-sized x phase. The morphology of the x phase appeared to have a correlation with the faulting in the {2 1 1} planes, which are one of the characteristic lattice imperfections of the Gum Metal specimen. It is likely that the nanometer-sized x phase may be a type of obstacle related to the restriction of the dislocation movement, which has been a significant problem in research on Gum Metal.