| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10655638 | Intermetallics | 2005 | 5 Pages |
Abstract
A nickel aluminide coating process, developed on heat resistant Ti alloy by electroplating a Ni film followed by high Al activity pack cementation, forms a duplex layer structure, an outer Ni2Al3 layer and an inner TiAl3/TiAl2/TiNiAl2 layer. The coated Ti-alloy was oxidized in air for up to 3,600Â ks (1,000Â h) under thermal cycling between room temperature and 1023Â K. A protective Al2O3 scale formed with little oxide exfoliation and the oxidation amount was 6Â g/m2 after the 3,600Â ks oxidation. It was found that after 3,600Â ks oxidation at 1023Â K the coating layer structure was essentially unchanged, similar to the as-formed, except that the TiAl3 layer had changed to TiAl2.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Takeshi Izumi, Takumi Nishimoto, Toshio Narita,