I. S. Pavlov, M. A. Artamonov, V. V. Artemov, A. S. Kumskov, E. Yu. Marchukov, A. L. Vasiliev
{"title":"Peculiarities of the Formation of Defects Initiating Fatigue Faults in Granular Alloy EP741NP","authors":"I. S. Pavlov, M. A. Artamonov, V. V. Artemov, A. S. Kumskov, E. Yu. Marchukov, A. L. Vasiliev","doi":"10.1134/S1063774524602351","DOIUrl":null,"url":null,"abstract":"<p>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, CTi<sub><i>x</i></sub>Nb<span>\\(_{{1 - x}}\\)</span>, amorphous AlO<sub><i>x</i></sub>, HfO<sub>2</sub>, α-Al<sub>2</sub>O<sub>3</sub>, β-Al<sub>2</sub>O<sub>3</sub>, Al<sub>2</sub>MgO<sub>4</sub>, Co<sub>7</sub>Mo<sub>6</sub>, Co<sub>3</sub>O<sub>4</sub>, S<sub>4</sub>Ti<sub>3</sub>, NbO<sub>2</sub>, TiO<sub>2</sub>, 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.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 6","pages":"794 - 803"},"PeriodicalIF":0.6000,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774524602351","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
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\(_{{1 - x}}\), 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.
期刊介绍:
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.