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Crack Cleaning and FIC Depletion |  |
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The below crack is filled with an oxide that needs to be removed. This is prior to HFC treatment |
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 A partially braze filled crack is seen below. |
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 Photo at 100x of a crack prior to treatment |
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 Depletion on a 1422 Alloy - 400x |
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 Depletion - both local, general and IGA on a 1447alloy I |
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 100x photo of an etched sample (1422 alloy) |
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50x metallographic examination of an etched 1422 alloy after HFC |
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