Influence of water vapour on a Nickel-Based alloy oxidation.

被引：1
|
作者：
Buscail, Henri [1 ]
Rolland, Raphael [1 ]
Issartel, Christophe [1 ]
Riffard, Frederic [1 ]
Rabaste, Francoise [1 ]
Perrier, Sebastien [1 ]
机构：
[1] Clermont Univ, UBP, LVEEM, F-43006 Le Puy En Velay, France
来源：
DIFFUSION IN MATERIALS - DIMAT 2011 | 2012年 / 323-325卷
关键词：
oxidation; Ni-based alloy; water vapour; in situ XRD; molybdenum; HIGH-TEMPERATURE OXIDATION; 316L STAINLESS-STEEL; ELECTRONIC RESISTANCE; CORROSION BEHAVIOR; SUPERALLOY FOILS; CHROMIA SCALES; KINETICS; GROWTH; OXIDES;
D O I：
10.4028/www.scientific.net/DDF.323-325.309
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Water vapour has little effect on the oxidation rate and scale composition of a nickel-based SY 625 alloy oxidized between 900 and 1100 degrees C. At 900 and 1000 degrees C, the outer scale is composed of Cr2O3 and a continuous NbNi4 - Ni3Mo subscale is found at the oxide/alloy interface. At 1100 degrees C the scale is composed of an outer chromia scale and an internal CrNbO4 subscale. The oxide scale morphology differs between dry and wet conditions. Under dry conditions the oxide scale appears to be compact and chromia pegs are observed at the internal interface. Under wet conditions, porosities are observed inside the scale. At 1100 degrees C some scale spallation is observed under dry and wet conditions.
引用
收藏
页码：309 / 314
页数：6
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