Properties of TZM Alloy In Divertor Water Coolant
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- Category: Molybdenum knowledge
- Published on 08 July 2013
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It was observed that, independently of the stressing conditions, the environments in terms of their deleterious effects on the LCF performances of TZM alloys, could be ranked in the following order: oxygenated water < deaerated water < hydrogenated water.
Conflicting results were conversely obtained in hydrogen peroxide solutions, where the fatigue resistance was the lowest under 20 kN loading, but became the highest at a reduced amplitude of 17 kN. On the basis of visual assessments.
And TZM open circuit potential values, continuously recorded during testing against an Ag/AgCl reference electrode, an idea about the corrosion behaviour of TZM alloy in high temperature water environments was proposed.
Qualitative fractographic analysis was performed by scanning electron microscopy (SEM), to identify the predominant failure modes and suggest, in connection with the electrochemical evaluations, candidate cracking mechanisms,
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