Hostname: page-component-84b7d79bbc-rnpqb Total loading time: 0 Render date: 2024-07-25T16:18:00.371Z Has data issue: false hasContentIssue false
  • English
  • Français

Crystallographically-Necessary Constraints at Triple Junctions in Grain Boundary Engineered Alloys

Published online by Cambridge University Press:  15 March 2011

Valerie Randle
Valerie Randle*
Affiliation:
Materials Research Centre, School of Engineering, University of Wales Swansea, Swansea SA2 8PP, UK
Get access

Abstract

Crystallographic characteristics of a large number of Σ3 boundaries have been investigated in a nickel superalloy. The results indicated that {111}, vicinal-to-{111} (within 10° of {111} planes) and not-{111} Σ3s were all present in the sample population. At Σ3/Σ3/Σ9 junctions a combination of one {111} and one vicinal-to-{111} Σ3 was more likely to occur than two {111} or two not-{111} Σ3s, and an explanation is proposed. An analysis of the interface planes for the not-{111} Σ3s indicated that more than half the boundaries in this category could not have {211}{211}, {774}{855}, {111}{511}, {001}{221} or {110}{411} planes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 819: Symposia N/P – Interfacial Engineering for Optimized Properties III , 2004 , N7.3
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Wolf, D., Materials Interfaces: Atomic Level Structure and Properties, ed. Wolf, D and Yip, S. (Chapman & Hall, 1992).Google Scholar
2. Randle, V. and Davies, P., Inter. Sci. 7, 5 (1999).Google Scholar
3. Randle, V., Microtexture Determination and its Applications, 2nd Edition, (Institute of Materials, 2003).Google Scholar
4. Saylor, D. M., Morawiec, A. and Rohrer, G. S., Acta Mater. 51, 3663 (2003).Google Scholar
5. Wright, S. I. and Larsen, R. J., J. Microsc. 205, 245 (2002).Google Scholar
6. Randle, V. and Davies, H., Ultramicrosc. 90, 153 (2002).Google Scholar
7. Davies, H. and Randle, V., J. Microsc. 205, 253 (2002).Google Scholar
8. Randle, V., Acta Mater. 47, 4187 (1999).Google Scholar
9. Wolf, U., Ernst, F., Muschik, T., Finnis, M. W. and Fischmeister, H. F., Philos. Mag. A 66, 991 (1992).Google Scholar
10. Balluffi, R. W., and Maurer, R., Scripta Metall. 22, 709 (1988).Google Scholar
11. Wolf, D. and Lutsko, J. F., Zeit. Kristall. 189, 239 (1989).Google Scholar
12. Randle, V., Acta Mater. 46, 1459 (1997).Google Scholar