Maryland's Defense Patent Database

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Dynamic process for enhancing the wear resistance of ferrous articles

Patent image
CCDC ARL

A dynamic process for increasing the wear life of ferrous articles subjected to a high-temperature environment created by combustion of a propellant or fuel comprises selecting the propellant or fuel so that its combustion products include relatively large amounts of nitrogen, which nitrogen forms a protective nitride layer on the surface of the ferrous article. Disclosed is a specific embodiment of the invention for prolonging the wear life of gun barrels.

Inventors: 
Conroy, Paul J.; Leveritt, Charles S.; Demaree, John D.; Hirvonen, James
Patent Number: 
Technical domain: 
Machines and Processing
FIle Date: 
2004-11-10
Grant Date: 
2007-03-20
Grant time: 
860 days
Grant time percentile rank: 
15
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY