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process and composition for removing an aluminide coating of substrates with alloys of nickel
process and composition for removing an aluminide coating of substrates with alloys of nickel
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机译:用镍合金去除基材的铝化物涂层的方法和组合物
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摘要
Nickel aluminide and like coatings are stripped from nickel base superalloy substrates using a 60 DEG -71 DEG C. solution consisting essentially by volume percent of 43-48 nitric acid, 7-12 hydrochloric acid, balance water, and containing 0.008-0.025 mole/liter ferric chloride and at least 0.016 mole/liter copper sulfate. Coating removal is rapid while significant attack of the substrate is avoided.
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