High temperature fatigue crack growth in Inconel 718
作者： F.V. Antunes , J.M. Ferreira , C.M. Branco , J. Byme
DOI: 10.1179/MHT.2000.058
关键词:
摘要: AbstractThe nickel base superalloys are extensively used in high temperature applications, so it is important to know their behaviour under conditions of high-temperature fatigue. This paper studies the influence ΔK, loading frequency, stress ratio and on fatigue crack growth rate superalloys. study based tests carried out corner specimens Inconel 718 at 600°C room temperature. Three ratios (R = 0.05, 0.5 0.8) frequencies ranging from 0.0017 15 Hz were considered tests. For below 0.25 Hz, load wave shape was trapezoidal with different dwell times maximum load. At relatively propagation cycle dependent, while for lower time dependent. intermediate a mixed occurs. The transition dependent regime obtained each R. incr...
sci-hub.se 参考文章(21)
T Nicholas, T Weerasooriya, NE Ashbaugh, A Model for Creep/Fatigue Interactions in Alloy 718 ASTM International. ,(1985) , 10.1520/STP34252S
P. WOOLLIN, J.F. KNOTT, Effects of Temperature and Environment on the Long Crack Growth Behaviour of Inconel 718 Proceedings of The 7th International Conference On Fracture (ICF7)#R##N#Proceedings of the 7th International Conference On Fracture (icf7), Houston, Texas, 20–24 March 1989. pp. 1859- 1868 ,(1989) , 10.1016/B978-0-08-034341-9.50199-6
J Gayda, TP Gabb, RV Miner, Fatigue crack propagation of nickel-base superalloys at 650 deg C ASTM International. ,(1988) , 10.1520/STP24488S
Tong, Byrne, Effects of frequency on fatigue crack growth at elevated temperature Fatigue & Fracture of Engineering Materials & Structures. ,vol. 22, pp. 185- 193 ,(1999) , 10.1046/J.1460-2695.1999.00160.X
T Weerasooriya, Effect of Frequency on Fatigue Crack Growth Rate of Inconel 718 at High Temperature ASTM special technical publications. pp. 907- 923 ,(1988) , 10.1520/STP33112S
C.M. Branco, J. Baptista, J. Byrne, Crack growth under constant sustained load at elevated temperature in IN718 superalloy Materials at High Temperatures. ,vol. 16, pp. 27- 35 ,(1999) , 10.1179/MHT.1999.003
M. Clavel, A. Pineau, Frequency and wave-form effects on the fatigue crack growth behavior of alloy 718 at 298 K and 823 K Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 9, pp. 471- 480 ,(1978) , 10.1007/BF02646402
V. Dimopulos, K. M. Nikbin, G. A. Webster, Influence of cyclic to mean load ratio on creep/fatigue crack growth Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 19, pp. 873- 880 ,(1988) , 10.1007/BF02628370
J Byrne, Elevated temperature fatigue crack growth under dwell conditions in Waspaloy International Journal of Fatigue. ,vol. 19, pp. 359- 367 ,(1997) , 10.1016/S0142-1123(97)00056-X
D. A. Jablonski, J. V. Carisella, R. M. Pelloux, Fatigue Crack Propagation at Elevated Temperatures in Solid Solution Strengthened Superalloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 8, pp. 1893- 1900 ,(1977) , 10.1007/BF02646562