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Brief description of the repair of pieces in the super - alloy based on nickel
Brief description of the repair of pieces in the super - alloy based on nickel
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机译:镍基超级合金零件的修复简述。
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摘要
A narrow crevice in a Ni-base superalloy article is repaired by first removal of a complex oxide of at least one metal selected from Al and Ti, by treatment of the oxide in the crevice with gaseous active fluoride ions in a non-oxidizing atmosphere at a temperature at which the oxide will react with the fluoride ions under the conditions around the oxide. The crevice is then repaired in a subsequent step such as by filling with metal or pressure bonding.
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