Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-28T16:57:13.198Z Has data issue: false hasContentIssue false
  • English
  • Français

Solidification Processing and Fracture Behavior of RuAl-Based Alloys

Published online by Cambridge University Press:  26 February 2011

Todd Reynolds  and
David Johnson
Todd Reynolds
Affiliation:
Materials Engineering, Purdue University West Lafayette, IN 47907–1289
David Johnson
Affiliation:
Materials Engineering, Purdue University West Lafayette, IN 47907–1289
Get access

Abstract

Alloys of RuAl-Ru were processed using various solidification methods, and the fracture behavior was examined. The fracture toughness values for RuAl-hcp(Ru, Mo) and RuAl-hcp(Ru, Cr) alloys ranged from 23 to 38 MPa√m, while the volume fraction of RuAl ranged from 22 to 56 percent. Increasing the volume fraction of RuAl resulted in a decrease in fracture toughness. The hcp solid solution was shown to be the more ductile phase with a fracture toughness approaching 68 MPa?m, while the B2 solid solution (RuAl) was found to have a fracture toughness less than 13 MPa√m. An alloy of Ru-7Al-38Cr (at.%) that consisted of a hcp matrix with RuAl precipitates had the highest room temperature toughness and the greatest hardness.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 842: Symposium S – Integrative and Interdisciplinary Aspects of Intermetallics , 2004 , S6.2
Copyright
Copyright © Materials Research Society 2005

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

REFERENCES

1. Fleischer, RL, Zabala, RJ, Met Trans A, 21A, 2709–2715 (1990).Google Scholar
2. Wolff, IM, Sauthoff, G, Acta Mater, 45, 2949–2969 (1997).Google Scholar
3. Wolff, IM, Sauthoff, G, Cornish, LA, DeV, . Steyn, H, Coetzee, H, Structural Intermetallics 1997, edited by Nathal, MV, et al., (TMS, Warrendale, 1996), pp. 815–823.Google Scholar
4. Fleischer, RL, Field, RD, Briant, CL, Met Trans A, 22A, 403–414 (1991).Google Scholar
5. Ilic, N, Rein, R, Göken, M, Kempf, M, Soldera, F, Müchlich, F, Mater Sci and Eng A, A329–331, 38–44 (2002).Google Scholar
6. Reynolds, Todd and Johnson, David, Intermetallics, 12, 157–164 (2004).Google Scholar
7. Reynolds, Todd and Johnson, David, Mat Res Soc Symp Proc, 753, BB5.34 (2003).Google Scholar
8. Brown, WF, Srwaley, JE, ASTM Special Publication No. 410, (ASTM, Philadelphia, PA, 1966), pp. 13.Google Scholar
9. Manzone, MG, Briggs, JZ, Less-common alloys of Molybdenum, Climax Molybdenum Co., 1962, pp. 124.Google Scholar
10. Geach, GA, Knapton, AG, Woolf, AA, Powder Metallurgy in the Nuclear Age, pp. 750–758 (1962).Google Scholar
11. Chan, KS, Davidson, DL, Met and Mater Trans A, 32A, 2717–2727 (2001).Google Scholar