Structures and Properties of Gamma-Tial Alloys Containing Interstitial Elements
- 1 January 1990
- journal article
- Published by Springer Nature in MRS Proceedings
Abstract
This paper reports on the effects of carbon, nitrogen, boron, and oxygen on the microstructure and properties of gamma-TiAl alloys. It has been found that nitrogen and boron are capable of altering the solidification structure, whereas the others are not. The additions of >1 at.% B or 0.5 at.% N changed the cast structure from columnar to equiaxed with fine grain sizes. As a result, the strength has been significantly increased. Additional results on phase and structural stabilities will be presented.Keywords
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