Creep-fatigue crack growth of intermetallic compound Ni3Al(B) at elevated temperatures
Zhang, GP; Wang, ZG
Corresponding AuthorZhang, GP()
AbstractThe creep-fatigue crack growth of Ni3Al(B) alloy was investigated at elevated temperatures in air under four different loading waveforms. Two types of time dependent damage mechanisms have been identified: oxidation and creep effects. As compared with fatigue crack growth in air at room temperature, the effect of oxidation at the crack tip on the crack growth acceleration is significant. Creep effects, on the other hand, are dominant for tensile holding and slow-fast loading waveforms. The complicated interaction between creep-fatigue, oxidation induced embrittlement, and oxide induced crack closure determined the different fatigue crack growth behaviours for different loading waveforms at elevated temperature. The relationship between the constants C and m in the Paris formula and loading waveform were examined, and the influence of loading waveform on the crack propagation were also discussed. MST/4260.
Indexed BySCI
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000083830900003
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhang, GP
AffiliationChinese Acad Sci, Met Res Inst, Fatigue & Fracture Mat Lab, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Zhang, GP,Wang, ZG. Creep-fatigue crack growth of intermetallic compound Ni3Al(B) at elevated temperatures[J]. MATERIALS SCIENCE AND TECHNOLOGY,1999,15(11):1230-1235.
APA Zhang, GP,&Wang, ZG.(1999).Creep-fatigue crack growth of intermetallic compound Ni3Al(B) at elevated temperatures.MATERIALS SCIENCE AND TECHNOLOGY,15(11),1230-1235.
MLA Zhang, GP,et al."Creep-fatigue crack growth of intermetallic compound Ni3Al(B) at elevated temperatures".MATERIALS SCIENCE AND TECHNOLOGY 15.11(1999):1230-1235.
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