高温条件下FGH4108合金的保载-疲劳裂纹扩展行为

doi:10.7527/S1000-6893.2025.32364

Abstract

Abstract:

Fatigue crack growth experiments and interrupted tests are conducted on the fourth-generation powder metallurgy superalloy FGH4108 under varying temperatures and dwell time. The influence of temperature and dwell time on crack growth behavior is analyzed using characterization techniques such as Scanning Electron Microscopy （SEM）， Electron Backscatter Diffraction （EBSD）， and Electron Probe Microanalysis （EPMA）. The mechanism by which oxidation damage affects crack growth is revealed. A fatigue crack growth rate model describing the mechanical-oxidation coupling effect is proposed. The results show that as temperature and dwell time increase， the crack growth rate rises and fatigue life decreases significantly. Fractographic analysis reveals that at 650 ℃， fatigue cracks primarily propagate transgranularly with relatively flat fracture surfaces， while at temperatures above 750 ℃， fatigue cracks mainly propagate intergranularly， accompanied by the formation of secondary cracks. Concurrently， phenomena such as alterations in crack tip morphology and oxide formation were observed during crack propagation， elucidating the impact of oxidation on crack growth. The proposed model can better describe the fatigue crack growth rate at different temperatures and dwell time. At the same time， the effects of mechanical damage and oxidative damage on crack growth are decoupled， and the temperature dependence of oxidative damage parameters is determined.

Key words: powder metallurgy superalloy, oxidation damage, fatigue crack propagation, crack propagation rate model, high temperature

CLC Number:

V231.95

Hao QIN, Qiang LIU, Rong JIANG, Yingdong SONG, Qiang ZHANG, Jiantao LIU, Jian DENG, Tianjian LU. Dwell-fatigue crack growth behavior of FGH4108 alloy at high temperature[J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(21): 532364.

Figures/Tables 16

Table 1

Fig.1

Table 2

Experimental loading condition

T/℃	保载时间/s	实验结束条件
650	1/90	断裂
700	1/90	断裂
750	1/90	断裂
800	1/90	断裂
700	1/90	ΔK=30 MPa· $m$ 时中断
750	90	ΔK=30 MPa· $m$ 时中断

Table 2

Fig.2

Fig.3

Fig. 4

Fig.5

Fig.6

Fig.7

Fig.8

Table 3

Table 4

Fig.9

Fig.10

Table 5

Fig.11

References 29

[1]	PINEAU A， ANTOLOVICH S D. High temperature fatigue of nickel-base superalloys-A review with special emphasis on deformation modes and oxidation［J］. Engineering Failure Analysis， 2009， 16（8）： 2668-2697.
[2]	REED R C. The superalloys： fundamentals and applications［M］. Cambridge： Cambridge University Press， 2008.
[3]	韩增祥. 温度对变形高温合金热疲劳性能的影响［J］. 燃气涡轮试验与研究， 2007， 20（4）： 53-57.
	HAN Z X. Effects of temperature on thermal fatigue properties of some wrought superalloys［J］. Gas Turbine Experiment and Research， 2007， 20（4）： 53-57 （in Chinese）.
[4]	ZHONG Z H， GU Y F， YUAN Y， et al. Fatigue crack growth behavior of a newly developed Ni-Co-base superalloy TMW-2 at elevated temperatures［J］. Materials Science and Engineering： A， 2012， 552： 464-471.
[5]	LIU H， BAO R， ZHANG J Y， et al. A creep-fatigue crack growth model containing temperature and interactive effects［J］. International Journal of Fatigue， 2014， 59： 34-42.
[6]	WU C H， JIANG R， ZHANG L C， et al. Oxidation accelerated dwell fatigue crack growth mechanisms of a coarse grained PM Ni-based superalloy at elevated temperatures［J］. Corrosion Science， 2022， 209： 110702.
[7]	TELESMAN J， GABB T P， GHOSN L J， et al. Effect of notches on creep-fatigue behavior of a P/M nickel-based superalloy［J］. International Journal of Fatigue， 2016， 87： 311-325.
[8]	CHEN X， PETTIT R G， DUDZINSKI D， et al. On the role of crack tip creep deformation in hot compressive dwell fatigue crack growth acceleration in aluminum and nickel engine alloys［J］. International Journal of Fatigue， 2021， 145： 106082.
[9]	GABB T P， GAYDA J， TELESMAN J， et al. Factors influencing dwell fatigue life in notches of a powder metallurgy superalloy［J］. International Journal of Fatigue， 2013， 48： 55-67.
[10]	KIM D， JIANG R， REED P A S. Microstructural and oxidation effects on fatigue crack initiation mechanisms in a turbine disc alloy［J］. Journal of Materials Science， 2023， 58（4）： 1869-1885.
[11]	BIKA D， MCMAHON C J. A model for dynamic embrittlement［J］. Acta Metallurgica et Materialia， 1995， 43（5）： 1909-1916.
[12]	MOLINS R， HOCHSTETTER G， CHASSAIGNE J C， et al. Oxidation effects on the fatigue crack growth behaviour of alloy 718 at high temperature［J］. Acta Materialia， 1997， 45（2）： 663-674.
[13]	VISKARI L， HÖRNQVIST M， MOORE K L， et al. Intergranular crack tip oxidation in a Ni-base superalloy［J］. Acta Materialia， 2013， 61（10）： 3630-3639.
[14]	ZHANG X B， LIU C S， LU J Y， et al. Secondarily precipitated phases of a Ni-based superalloy during durable thermal treatment［J］. Journal of Northeastern University， 2005， 26（4）： 355-358.
[15]	侯杰，董建新，姚志浩. GH4169合金高温疲劳裂纹扩展的微观损伤机制［J］. 工程科学学报， 2018， 40（7）： 822-832.
	HOU J， DONG J X， YAO Z H. Microscopic damage mechanisms during fatigue crack propagation at high temperature in GH4169 superalloy［J］. Chinese Journal of Engineering， 2018， 40（7）： 822-832 （in Chinese）.
[16]	MILLER C F， SIMMONS G W， WEI R P. Evidence for internal oxidation during oxygen enhanced crack growth in P/M Ni-based superalloys［J］. Scripta Materialia， 2003， 48（1）： 103-108.
[17]	KITAGUCHI H S， LI H Y， EVANS H E， et al. Oxidation ahead of a crack tip in an advanced Ni-based superalloy［J］. Acta Materialia， 2013， 61（6）： 1968-1981.
[18]	JIANG R， PROPRENTNER D， CALLISTI M， et al. Role of oxygen in enhanced fatigue cracking in a PM Ni-based superalloy： Stress assisted grain boundary oxidation or dynamic embrittlment ［J］. Corrosion Science， 2018， 139： 141-154.
[19]	万煜玮，周斌，胡绪腾，等. 某镍基粉末合金高温疲劳裂纹扩展行为与模型研究［J］. 推进技术， 2023， 44（2）： 262-271.
	WAN Y W， ZHOU B， HU X T， et al. High temperature fatigue crack growth behavior and model of a nickel-based powder metallurgy superalloy［J］. Journal of Propulsion Technology， 2023， 44（2）： 262-271 （in Chinese）.
[20]	EVANS J L， SAXENA A. Elevated temperature fatigue crack growth rate model for NI-BASE superalloys［J］. International Journal of Fracture， 2014， 185（1）： 209-216.
[21]	CHRIST H J， WACKERMANN K， KRUPP U. Effect of dynamic embrittlement on high temperature fatigue crack propagation in IN718-experimental characterisation and mechanism-based modelling［J］. Materials at High Temperatures， 2016， 33（4/5）： 528-535.
[22]	WANG R Z， ZHU S P， WANG J， et al. High temperature fatigue and creep-fatigue behaviors in a Ni-based superalloy： Damage mechanisms and life assessment［J］. International Journal of Fatigue， 2018， 118： 8-21.
[23]	HEIL M L. Crack growth in alloy 718 under thermal-mechanical cycling （fatigue， fracture， nickel， superalloy）［D］. Ohio： Air Force Institute of Technology， 1986.
[24]	徐超，佴启亮，姚志浩，等. 晶界氧化对GH4738高温合金疲劳裂纹扩展的作用［J］. 金属学报， 2017， 53（11）： 1453-1460.
	XU C， NAI Q L， YAO Z H， et al. Grain boundary oxidation effect of GH4738 superalloy on fatigue crack growth［J］. Acta Metallurgica Sinica， 2017， 53（11）： 1453-1460 （in Chinese）.
[25]	VISKARI L， CAO Y， NORELL M， et al. Grain boundary microstructure and fatigue crack growth in Allvac 718Plus superalloy［J］. Materials Science and Engineering： A， 2011， 528（6）： 2570-2580.
[26]	CHAN K S， ENRIGHT M P， MOODY J， et al. A microstructure-based time-dependent crack growth model for life and reliability prediction of turbopropulsion systems［J］. Metallurgical and Materials Transactions A， 2014， 45（1）： 287-301.
[27]	MA L Z， CHANG K M. Identification of SAGBO-induced damage zone ahead of crack tip to characterize sustained loading crack growth in alloy 783［J］. Scripta Materialia， 2003， 48（9）： 1271-1276.
[28]	ENCINAS-OROPESA A， DREW G L， HARDY M C， et al. Effects of oxidation and hot corrosion in a nickel disc alloy［C］∥Superalloys 2008 Eleventh International Symposium. US： TMS， 2008： 609-618.
[29]	CAO L Y， CHEN Y， SUN Y L， et al. Regional high temperature fatigue crack growth behavior of a microstructure-gradient nickel-based superalloy［J］. Materials Science and Engineering： A， 2024， 890： 145871.

化学成分	质量分数/%
Cr	18.00
Co	12.00
Mo	3.00
W	3.00
Al	3.00
Ti	3.00
Ta+Nb+Hf	5.90
C	0.05
B	0.04
Zr	0.05

T/℃	E/GPa	σ_y/MPa	ε_f/%	D/μm
650	185	921	9.5	30
700	170	899	7.9	30
750	150	892	7.5	30
800	140	885	7.0	30

参数	数值
γ	0.31
d₀/nm	2.6
D₀/μm	1

T/℃	k_p	m₂
650	2.80×10^-11	3.81
700	9.32×10^-11	4.48
750	1.84×10^-10	4.56
800	1.97×10^-10	4.82

Dwell-fatigue crack growth behavior of FGH4108 alloy at high temperature

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