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
Fluid pressure responsive electric switch
Generating network topology parameters and monitoring a communications network domain
Method for generating codewords
Methods and systems for managing electronic messages
Providing a web page to a client
Systems and methods for detailed error reporting in data storage systems
Patient interface
  Randomly Featured Patents
Device for detecting contents of a bass and chord accompaniment
Compact camera module
Method and system for looping back traffic in QIQ ethernet rings and 1:1 protected PBT trunks
Closure membrane and closure employing same
Electro-optic light shutter and frame assembly with integrated switching mechanism
Apparatus and method for stacking and packing articles
Device, method, and graphical user interface for manipulation of user interface objects with activation regions
Infrared detector for ensuring correct weighing
Human cripto protein
Lawn mower blade holding tool