journal article·2013-08

A method for investigation of hot corrosion by gaseous Na2SO4

Pavleta Knutsson, Haiping Lai, Krystyna Stiller

Corrosion Science· Volume 73
Publisher page

Abstract

A novel in situ exposure method for investigating hot corrosion of aluminde coatings in the absence of an alkali sulphate melt is presented. The samples are exposed to Na2SO4(g) at a temperature above the dew point of the gas. Results from 100 and 500 h exposures at 900 degrees C of Ni-based In792 covered with SIF232 aluminide coating are presented. Already after 100 h of testing, attack characteristic for Type I hot corrosion is observed. The reactions taking place during the testing are discussed and the results are compared with those from the well-known ex situ salt hot corrosion test.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: High-Temperature Coating Behaviors · Advanced ceramic materials synthesis · Magnesium Oxide Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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