Fretting fatigue of single crystal nickel at 600 °C

摘要: Abstract An experimental setup has been developed to conduct fretting fatigue tests at 610 °C and lives are characterized for the contacting pair of IN100 single crystal nickel subjected a range loading conditions. A well set experiments have conducted obtain friction coefficient in slip zone. robust quasi-analytical approach, based on solution singular integral equations, used analyze contact stresses. Different multi-axial parameters investigated their ability predict initiation life specimens. estimation crack propagation was made using conventional fracture mechanics approaches, after making certain assumptions simplify problem. Total predicted nucleation from different approach. These were compared with experimentally observed failure lives. The quality comparison provides confidence notion that prediction tools can be assess elevated temperatures.