| タイトル | Elevated Temperature Compressive Strength Properties of Oxide Dispersion Strengthened NiAl After Cryo-milling and Roasting in Nitrogen |
| 本文（外部サイト） | http://hdl.handle.net/2060/19980233225 |
| 著者（英） | Hebsur, Mohan; Whittenberger, J. Daniel; Grahle, Peter; Arzt, Eduard |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1998-07-01 |
| 言語 | eng |
| 内容記述 | In an effort to superimpose two different elevated temperature strengthening mechanisms in NiAl, several lots of oxide dispersion strengthened (ODS) NiAl powder have been cryo-milled in liquid nitrogen to introduce AlN particles at the grain boundaries. As an alternative to cryo-milling, one lot of ODS NiAl was roasted in nitrogen to produce AlN. Both techniques resulted in hot extruded AlN-strengthened, ODS NiAl alloys which were stronger than the base ODS NiAl between 1200 and 1400 K. However, neither the cryo-milled nor the N2-roasted ODS NiAl alloys were as strong as cryo-milled binary NiAl containing like amounts of AlN. The reason(s) for the relative weakness of cryo-milled ODS NiAl is not certain; however the lack of superior strength in N2-roasted ODS NiAl is probably due to its relatively large AlN particles. |
| NASA分類 | Nonmetallic Materials |
| レポートNO | NAS 1.15:208399
E-11168
NASA/TM-1998-208399 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/97528 |
