In:
Advanced Engineering Materials, Wiley, Vol. 22, No. 7 ( 2020-07)
Abstract:
Herein, the effect of water vapor on the oxidation resistance of the alloy Mo‐20Si‐52.8Ti (at%) is investigated. The alloy is oxidized in dry, wet, as well as in in situ changing atmospheres at 1100 °C. The oxidation kinetics changes from nearly parabolic to linear if water vapor is present in oxidizing atmosphere. Under all conditions, the oxide scales consist of an outer TiO 2 and a TiO 2 SiO 2 duplex layer underneath. In wet atmosphere, the thicknesses of the two regions substantially increase indicating a severe ingress of water vapor. The inferior oxidation resistance in wet environment is primarily rationalized by the fast diffusion of H 2 O through SiO 2 .
Type of Medium:
Online Resource
ISSN:
1438-1656
,
1527-2648
DOI:
10.1002/adem.202000219
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2016980-2
detail.hit.zdb_id:
1496512-4
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