Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of an ultra-short femtosecond pulse and KW class high average-power laser for preventing cold-worked stress corrosion cracking in iron steels and alloyed steels including stainless stee










Image Number 4 for United States Patent #7651576.

The method of preventing cold-worked stress corrosion cracking in the iron steels and alloyed steels including stainless steels comprises removing a residual tensile stressed layer, optionally generating residual compression, through the impact of irradiation with the ultra-short femtosecond pulse and kW class high average-power laser, and removing a hardened surface layer extremely susceptible to stress corrosion cracking, whereby this susceptible hardened surface layer with many concentrated dislocation defects and the likes is removed without generating or introducing any of such hardened layer in the process of its removal. The method is free from the risk of damaging other equipment by peening with steel balls or other shaped shots, is almost unlimited in actual environment, effectiveness, work, place and other conditions for application, is inexpensive, and functions continuously for a much longer period than an ordinary nuclear reactor's service lifetimes.








 
 
  Recently Added Patents
Power supply system for motor vehicle
Diameter signaling for mobile IPv4
Processing abstract derived entities defined in a data abstraction model
Generation of interpolated samples for decision based decoding
Etch resistant clearcoat
Matching engine for comparing data feeds with user profile criteria
High performance design rule checking technique
  Randomly Featured Patents
Floor maintenance tool and method
Modified polysaccharides exhibiting altered biological recognition
Scroll compressor protector
Polymeric metal oxide materials and their formation and use
Unwind system with flying-splice roll changing
Ear insert for hearing aids
Alignment mechanism
Slide bar devices and assemblies
Telescoping tool and coupling means therefor
Information processing system and logic LSI, detecting a fault in the system or the LSI, by using internal data processed in each of them