Thermal fatigue behavior of K125L superalloy
Ning, Li-Kui1; Zheng, Zhi1; An, Feng-Quan2; Tang, Song1; Tong, Jian1; Ji, Hui-Si1; Yu, Hui-Wen2
Corresponding AuthorNing, Li-Kui(
Source PublicationRARE METALS
AbstractThe thermal fatigue behavior of K125L superalloy at the peak temperature of 1,050 A degrees C was investigated by optical microscope (OM), X-ray diffraction (XRD), and scanning electron microscope (SEM). The experimental results show that the crack initiation sites of tested alloys are at the V-notch tip and the V-notch tip propagates by way of continuous cracking along grain boundaries. The formation of high-temperature oxides and MC carbides accelerates the crack propagation, and no secondary carbides precipitate out. Oxides between cracks are mainly the Al2O3 as well as Cr2O3, and carbides are Ta-rich and Ti-rich MC carbides.
KeywordK125L superalloy Thermal fatigue High-temperature oxidation Carbides
Funding OrganizationNational Natural Science Foundation of China
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[50901077]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000368692900006
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorNing, Li-Kui
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Northern Heavy Ind Grp Co Ltd, Mat Preparat Co, Shenyang 110141, Peoples R China
Recommended Citation
GB/T 7714
Ning, Li-Kui,Zheng, Zhi,An, Feng-Quan,et al. Thermal fatigue behavior of K125L superalloy[J]. RARE METALS,2016,35(2):172-176.
APA Ning, Li-Kui.,Zheng, Zhi.,An, Feng-Quan.,Tang, Song.,Tong, Jian.,...&Yu, Hui-Wen.(2016).Thermal fatigue behavior of K125L superalloy.RARE METALS,35(2),172-176.
MLA Ning, Li-Kui,et al."Thermal fatigue behavior of K125L superalloy".RARE METALS 35.2(2016):172-176.
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