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Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C

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dc.contributor.author Aghion, E
dc.contributor.author Govender, G
dc.contributor.author Comins, N
dc.date.accessioned 2007-06-12T07:42:09Z
dc.date.available 2007-06-12T07:42:09Z
dc.date.issued 1995-04-15
dc.identifier.citation Aghion, E, Govender, G and Comins, N. 1995. Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C. Journal of Materials Science, vol. 30(8), pp 2163-2170 en
dc.identifier.issn 0022-2461
dc.identifier.uri http://hdl.handle.net/10204/565
dc.description Copyright: 1994 Chapman & Hall Ltd en
dc.description.abstract High-temperature low-cycle fatigue (HTLCF) failure mechanisms of aluminide-coated MAR-M002 nickel-base superalloy in air, argon and Ar+5% SO2 atmospheres were investigated at 870°C. The loading conditions were constant and consisted of creep tension and plastic compression according to the creep plasticity mode of the strain-range partitioning method. The resultant failure mechanisms were investigated using scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction analysis. The results obtained indicated that the combination of environmental effect and cyclic loading resulted in an early failure of the coating. This failure acted as the incubation and initiation stages for the HTLCF failure of the coated alloy. However, it was found that under an SO2-containing environment, an accelerated and premature failure was obtained compared to that obtained in argon and air environments. Hence, it is evident that although the aluminide coating provides relatively adequate resistance towards oxidation environment, this protection was ineffective under the SO2-bearing atmosphere. en
dc.language.iso en en
dc.publisher Chapman & Hall Ltd en
dc.subject HTLCF en
dc.subject High temperature low cycle fatigue en
dc.subject Nickel base superalloys en
dc.subject Aluminide coatings en
dc.subject SO2 - Sulphur dioxide en
dc.subject Materials sciences en
dc.title Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C en
dc.type Article en
dc.identifier.apacitation Aghion, E., Govender, G., & Comins, N. (1995). Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C. http://hdl.handle.net/10204/565 en_ZA
dc.identifier.chicagocitation Aghion, E, G Govender, and N Comins "Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C." (1995) http://hdl.handle.net/10204/565 en_ZA
dc.identifier.vancouvercitation Aghion E, Govender G, Comins N. Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C. 1995; http://hdl.handle.net/10204/565. en_ZA
dc.identifier.ris TY - Article AU - Aghion, E AU - Govender, G AU - Comins, N AB - High-temperature low-cycle fatigue (HTLCF) failure mechanisms of aluminide-coated MAR-M002 nickel-base superalloy in air, argon and Ar+5% SO2 atmospheres were investigated at 870°C. The loading conditions were constant and consisted of creep tension and plastic compression according to the creep plasticity mode of the strain-range partitioning method. The resultant failure mechanisms were investigated using scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction analysis. The results obtained indicated that the combination of environmental effect and cyclic loading resulted in an early failure of the coating. This failure acted as the incubation and initiation stages for the HTLCF failure of the coated alloy. However, it was found that under an SO2-containing environment, an accelerated and premature failure was obtained compared to that obtained in argon and air environments. Hence, it is evident that although the aluminide coating provides relatively adequate resistance towards oxidation environment, this protection was ineffective under the SO2-bearing atmosphere. DA - 1995-04-15 DB - ResearchSpace DP - CSIR KW - HTLCF KW - High temperature low cycle fatigue KW - Nickel base superalloys KW - Aluminide coatings KW - SO2 - Sulphur dioxide KW - Materials sciences LK - https://researchspace.csir.co.za PY - 1995 SM - 0022-2461 T1 - Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C TI - Environmental effect of S02-bearing atmosphere on the creep fatigue failure of aluminide-coated MM-002 nickel-base superalloy at 870°C UR - http://hdl.handle.net/10204/565 ER - en_ZA


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