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Peculiarities of the Formation of Defects Initiating Fatigue Faults in Granular Alloy EP741NP.

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Title: Peculiarities of the Formation of Defects Initiating Fatigue Faults in Granular Alloy EP741NP.
Authors: Pavlov, I. S.1 (AUTHOR), Artamonov, M. A.2 (AUTHOR), Artemov, V. V.1 (AUTHOR), Kumskov, A. S.1 (AUTHOR), Marchukov, E. Yu.2 (AUTHOR), Vasiliev, A. L.1,3 (AUTHOR) a.vasiliev56@gmail.com
Source: Crystallography Reports. Dec2024, Vol. 69 Issue 6, p794-803. 10p.
Subjects: Fatigue cracks, X-ray microanalysis, Transmission electron microscopy, Crystal defects, Alloy fatigue
Abstract: The EP741NP alloy samples destroyed during fatigue testing have been studied by transmission electron microscopy, energy-dispersive X-ray microanalysis, and electron diffraction. The composition and crystal structure of defects detected at the fatigue crack boundaries have been thoroughly examined. It has been shown that these defects have mainly the morphology of elongated flat "carpets" containing NiO, CTixNb , amorphous AlOx, HfO2, α-Al2O3, β-Al2O3, Al2MgO4, Co7Mo6, Co3O4, S4Ti3, NbO2, TiO2, and amorphous regions containing C, O, Ca, S, Na, and Cl. Assumptions concerning the source and time of formation of the investigated defects have been made. [ABSTRACT FROM AUTHOR]
Copyright of Crystallography Reports is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="DE" term="%22Fatigue+cracks%22">Fatigue cracks</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+microanalysis%22">X-ray microanalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+defects%22">Crystal defects</searchLink><br /><searchLink fieldCode="DE" term="%22Alloy+fatigue%22">Alloy fatigue</searchLink>
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  Data: The EP741NP alloy samples destroyed during fatigue testing have been studied by transmission electron microscopy, energy-dispersive X-ray microanalysis, and electron diffraction. The composition and crystal structure of defects detected at the fatigue crack boundaries have been thoroughly examined. It has been shown that these defects have mainly the morphology of elongated flat "carpets" containing NiO, CTixNb , amorphous AlOx, HfO2, α-Al2O3, β-Al2O3, Al2MgO4, Co7Mo6, Co3O4, S4Ti3, NbO2, TiO2, and amorphous regions containing C, O, Ca, S, Na, and Cl. Assumptions concerning the source and time of formation of the investigated defects have been made. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Crystallography Reports is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Dec2024
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