| 摘要 |
PROBLEM TO BE SOLVED: To provide a site repairing method for a cracked part by stress corrosion cracking, hydrogen induced cracking and fatigue. SOLUTION: A repairing method of a cracked part of a metallic structure is furnished with a process to cover a surface (to form a first covering layer) of the cracked part by thermal spraying, a process to weld from an upper surface of the covering layer, a peening process to blast the cracked part as pretreatment of the aforementioned process to cover the surface and either of or both of a peening process to further blast the cracked part after welding and a process to cover the surface by thermal spraying (to form a second covering layer) in the case when a working environment is serious.
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