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
Stock analysis method, computer program product, and computer-readable recording medium
Apparatus and method for recording reboot reason of equipment
Biomarkers of gastric cancer and use thereof
Method and system for implementing power detection
Method for modeling and analyzing linear time invariant systems with time delays
Method for specifying control curve parameters for controlling climatic environmental conditions of climate-controlled enclosed spaces
Gas flow indicator
  Randomly Featured Patents
Brush and a packaging and applicator device including such a brush
Post-mastectomy garment
Composition sensitive to IR radiation and to heat and lithographic plate coated therewith
Labeling method, recording method, labeling apparatus, recording apparatus and recording medium
Prosthesis
Head mounted display using a fused fiber bundle
Dual emission microscope
Method for bonding ceramic to copper, without creating a bow in the copper
System, apparatus and method for establishing a secured communications link to form a virtual private network at a network protocol layer other than at which packets are filtered
Method and apparatus for interactive audience participation at a live spectator event