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TECHNOLOGY FOR CLEANING THERMAL FATIGUE CRACKS IN NICKEL-BASED SUPERALLOYS WITH A HIGH CHROMIUM CONTENT
TECHNOLOGY FOR CLEANING THERMAL FATIGUE CRACKS IN NICKEL-BASED SUPERALLOYS WITH A HIGH CHROMIUM CONTENT
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机译:高铬含量镍基高温合金中热疲劳裂纹的清除技术
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摘要
The invention relates to a method for cleaning components that comprise cracks that are polluted with oxides, in particular gas turbine parts. In said method, the components to be cleaned are exposed in a cleaning chamber at high temperature to a cleaning gas containing gaseous halogen compounds, which ionise to form halide ions. The invention is characterised in that it uses a cleaning gas containing 18 to 30 % by volume hydrogen halide.
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