Szczegóły publikacji
Opis bibliograficzny
Mechanistic aspects of Pt-modified $\beta-NiAl$ alloy oxidation / Grzegorz SMOŁA, Wen Wang, Jerzy JEDLIŃSKI, Brian Gleeson, K. KOWALSKI, A. BERNASIK, M. NOCUŃ // Materials at High Temperatures ; ISSN 0960-3409 . — 2009 — vol. 26 no. 3, s. 273–280. — Bibliogr. s. 279–280, Abstr.
Autorzy (7)
- AGHSmoła Grzegorz
- Wang Wen
- AGHJedliński Jerzy
- Gleeson Brian M.
- AGHKowalski Kazimierz
- AGHBernasik Andrzej
- AGHNocuń Marek
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 51055 |
|---|---|
| Data dodania do BaDAP | 2010-03-19 |
| Tekst źródłowy | URL |
| DOI | 10.3184/096034009X463907 |
| Rok publikacji | 2009 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials at High Temperatures |
Abstract
The effects of Pt addition (5, 10 and 15at.%) on the high temperature oxidation behaviour of the intermetallic compound β-NiAl were studied at 1150° C under both isothermal and thermal cycling conditions. The scale growth mechanism was assessed using two-stage oxidation exposures with 18O2 as a tracer in conjunction with high-resolution secondary ion mass spectrometer analysis of isotopic distributions. The scale morphologies were further characterized using secondary electron microscopy, Pt was found to reduce slightly the scale growth rate and improve considerably its resistance to spallation but it did not affect the sequence of scale development. Instead, it slowed the rate at which the scale developed. The α-Al2O3 scales that were eventually established were duplex in structure, consisting of a compact inner layer and a thinner outer layer. This outer layer consisted of ridges and grew by the coarsening of these and/or by a dislocation climb mechanism.
