Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1619712 | Journal of Alloys and Compounds | 2010 | 8 Pages |
Abstract
A family of alloys in the nickel-rich region of the Ni-B-Ti phase diagram have been examined by differential thermal analysis (DTA), X-ray and electron diffractions, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). A ternary phase with chemical formula Ni21Ti3B6(Ï) was observed and characterized in these alloys. Solid-state eutectoid transformation of the ternary phase Ï was observed in alloys with low titanium contents. However, alloys with high titanium contents did not present this transformation due to the large amount of titanium which enhanced the formation of hard boride phases such as TiB2. In addition, crystallographic orientation relationships between nickel and the boride phases were also reported with the lattice matching [1Â 1Â 2]Ï//[0Â 3Â 1]Ni dominating the interface.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
J.A. Ajao,