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ways to develop resttryckspänning in stainless steel and nickel bases varmhållfasta alloys and repair of spänningskorrosion induced cracks by welding under water
ways to develop resttryckspänning in stainless steel and nickel bases varmhållfasta alloys and repair of spänningskorrosion induced cracks by welding under water
The method concerns development of compressive residual stresses in corrosion resistant steels and superalloys on nickel basis. It consists of producing a bath of molten metal, cooling the bath to build a metallurgical bond with adjoining solid metal, and quenching the bonded metal to the temperature of the surroundings below the melting zone of the metal through contact with a quenching medium. Also claimed are a method for repair of damage caused stress corrosion cracks, and a corresponding apparatus.
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