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Microcracking Development in the L12 Ternary Titanium Trialuminide

Published online by Cambridge University Press:  26 February 2011

M.B. Winnicka  and
R.A. Varin
M.B. Winnicka
Affiliation:
University of Waterloo, Mechanical Engineering, Waterloo, Ontario, Canada, N2L 3G1
R.A. Varin
Affiliation:
University of Waterloo, Mechanical Engineering, Waterloo, Ontario, Canada, N2L 3G1
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Abstract

Development of microcracking in a ternary titanium trialuminide modified with copper (Al5CuTi2) has been investigated. It has been observed that indenting the material by diamond pyramid indenter (Vickers) causes two types of cracking: (a) on the faces of the indentation and (b) on the surface around the indentation. Compression tests carried up to various levels of permanent deformation have shown a different response of low porosity (2.6±0.5%) and high porosity (5.3±1.5%) material to the formation of microcracks.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 709
Copyright
Copyright © Materials Research Society 1991

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References

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