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
Method and apparatus for charging a power pack of a portable electronic device
Random access point (RAP) formation using intra refreshing technique in video coding
Medical device arm
System and method for passing PLC signals from a first electrical line to a second electrical line
Vehicle, toy, and/or replicas thereof
Compositions and methods using microspheres and non-ionic contrast agents
Bioreactor device, and method and system for fabricating tissues in the bioreactor device
  Randomly Featured Patents
Gas separation
External setting and correction device for the treatment of bone fractures
Golf putting game
Dual sliding needle bar tufting apparatus
Order processing system for performing image reproduction processing in response to order for reproducing digital image data
Ion sensors and their divided parts
Carbamoylalkyl substituted poly(phosphine oxide) flame-retardants
Method of chemical mechanical polishing organic silicon material with low dielectric constant
Article of footwear including a thematical toe cover
Trellis encoder for encoding dual transmission stream