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
Particle-loaded membrane for solid-phase-extraction and method for performing SALDI-MS analysis of an analyte
Liquid crystal panel and liquid crystal display
Tiered cost model for access to a computer network
Portable electronic device housing including hinge
Determination method for a reinitialization of a temporal sequence of fluoroscopic images of an examination region of an examination object
Curable sublimation marking material and sublimation transfer process using same
Nuclear fuel assembly bottom nozzle
  Randomly Featured Patents
Combined tread depth measurement tool and pneumatic pressure gauge systems and methods
Structural connector hub for exhibit booths
Electronic bordering system
Low resistivity poly-silicon gate produced by selective metal growth
Method of transmitting data with redundant structure, and device for transmitting data by said method
Phosphonitrilate polymers and method of preparation
Automobile
Method and apparatus for reducing fouling of injection and recovery wells
Recovery of catalyst systems from diaryl carbonate-containing reaction solutions by suspension crystallization
Combination cap and can holder