Laser cladding technology was studied as a method for upgrading the present repair procedures of damaged tubes in a nuclear steam generator and Doosan subsequently developed and designed a new Laser Cladding Repair System. One of the important features of this newly developed Laser Cladding Repair System is that molten metal can be deposited on damaged tube surfaces using a laser beam without the need to install sleeves inside the tube. Laser cladding quality tests on the steam generator tube material, Alloy 600, were performed according to ASME Section IX.
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