The Effects of Hf, Y and Zr Additions on the Oxidation Behavior of Ni-Fe based Incoloy 825 at High Temperature
Creators
- 1. Chungnam National University, Daejeon (Korea, Republic of)
Description
Superalloys are protected by making a protective Cr2O3 or Al2O3 layer on the surface when exposed to an aggressive environment at elevated temperature. Recently, studies on the effects of oxidation behavior by the addition of the oxygen active elements in the superalloys have been proceeded, because it improved protectiveness of oxide scales, providing good oxidation resistance to high temperature materials. In this study, the oxidation behavior and morphological features of isothermally and cyclically tested Incoloy 825 with 1 wt% of Hf, 0.5wt% of Zr, and Y additions were investigated in air at 1000 .deg. C and 1100 .deg. C. The OAE added Incoloy 825 alloys showed better oxidation resistance than that without addition. Especially Y added alloy showed the best cyclic oxidation resistance among the alloys tested
Additional details
Publishing Information
- Journal Title
- Journal of the Corrosion Science Society of Korea
- Journal Volume
- 23
- Journal Issue
- 3
- Series
- 9 refs, 8 figs, 1 tab
- Journal Page Range
- p. 170-178
- ISSN
- 0253-312X
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 45022792
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM OXIDES; CHROMIUM OXIDES; HAFNIUM ADDITIONS; INCOLOY 825; MORPHOLOGY; OXIDATION; YTTRIUM ADDITIONS; ZIRCONIUM ADDITIONS
- Descriptors DEC
- ALLOY-NI43FE30CR22MO3; ALLOYS; ALUMINIUM ADDITIONS; ALUMINIUM ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM COMPOUNDS; COPPER ALLOYS; CORROSION RESISTANT ALLOYS; HAFNIUM ALLOYS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; INCOLOY ALLOYS; IRON ALLOYS; MATERIALS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; OXIDES; OXYGEN COMPOUNDS; TITANIUM ADDITIONS; TITANIUM ALLOYS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM ALLOYS