EP 2342364 A1 20110713 - METHOD FOR ENHANCING FRETTING FATIGUE RESISTANCE OF ALLOYS
Title (en)
METHOD FOR ENHANCING FRETTING FATIGUE RESISTANCE OF ALLOYS
Title (de)
VEFAHREN ZUR ERHÖHUNG DER KONTAKTERMÜDUNGSBESTÄNDIGKEIT VON LEGIERUNGEN
Title (fr)
PROCÉDÉ POUR AMÉLIORER LA RÉSISTANCE À LA FATIGUE PAR FROTTEMENT D'ALLIAGES
Publication
Application
Priority
- US 2009055753 W 20090902
- US 9359508 P 20080902
Abstract (en)
[origin: US2010051141A1] A method for increasing the fretting fatigue resistance of an alloy by prehardened a surface of the alloy followed by laser shock peening the prehardened surface. In one exemplary embodiment, an orthopedic prosthesis is formed from a titanium alloy and subjected to surface nitriding followed by laser shock peening. By nitriding the titanium alloy, the hardness of the alloy's surface is increased. Then, by subjecting the nitrided surface of the alloy to laser shock peening, the fretting fatigue of the nitrided surface may be increased by more than 100%.
IPC 8 full level
C21D 10/00 (2006.01); C22F 1/18 (2006.01); C23C 8/24 (2006.01)
CPC (source: EP US)
C21D 1/78 (2013.01 - EP US); C21D 10/005 (2013.01 - EP US); C22F 1/10 (2013.01 - EP US); C23C 8/24 (2013.01 - EP US); C23C 8/36 (2013.01 - EP US); C23C 8/80 (2013.01 - EP US)
Citation (search report)
See references of WO 2010028060A1
Citation (examination)
US 2008154369 A1 20080626 - BARR GEORGE A [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
US 2010051141 A1 20100304; EP 2342364 A1 20110713; WO 2010028060 A1 20100311
DOCDB simple family (application)
US 55287009 A 20090902; EP 09792182 A 20090902; US 2009055753 W 20090902