On low cycle fatigue of austenitic steel. Part II: Extraction of information on microcrack density from a combination of the acoustic and eddy current data

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On low cycle fatigue of austenitic steel. Part II: Extraction of information on microcrack density from a combination of the acoustic and eddy current data. / Kachanov, Mark; Mishakin, Vasiliy; Pronina, Yulia.

в: International Journal of Engineering Science, Том 169, 103569, 01.12.2021.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{5b592f3887924804a4644f92b6a74ab8,

title = "On low cycle fatigue of austenitic steel. Part II: Extraction of information on microcrack density from a combination of the acoustic and eddy current data",

abstract = "Microstructural information on damage in a metastable austenitic steel developed under low-cycle fatigue conditions is extracted from the acoustic monitoring of Poisson's ratio supplemented by the eddy current, and, under certain conditions, specific weight data. These data imply that damage has the form of мicropores of strongly oblate, crack-like shapes (aspect ratios of 0.01–0.04). This means that crack density – and not porosity – is the proper parameter of their concentration, in whose terms the effective properties should be expressed. It is also found that the microcrack density at the fracture point is proportional to relative volume of the strain-induced martensite. We also discuss relations between porosity and crack density.",

keywords = "Austenitic steel, Crack density, Damage, Fatigue, Microcracking, TRANSFORMATION, MARTENSITE, BEHAVIOR, DEFORMATION, DAMAGE",

author = "Mark Kachanov and Vasiliy Mishakin and Yulia Pronina",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = dec,

day = "1",

doi = "10.1016/j.ijengsci.2021.103569",

language = "English",

volume = "169",

journal = "International Journal of Engineering Science",

issn = "0020-7225",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - On low cycle fatigue of austenitic steel. Part II: Extraction of information on microcrack density from a combination of the acoustic and eddy current data

AU - Kachanov, Mark

AU - Mishakin, Vasiliy

AU - Pronina, Yulia

PY - 2021/12/1

Y1 - 2021/12/1

N2 - Microstructural information on damage in a metastable austenitic steel developed under low-cycle fatigue conditions is extracted from the acoustic monitoring of Poisson's ratio supplemented by the eddy current, and, under certain conditions, specific weight data. These data imply that damage has the form of мicropores of strongly oblate, crack-like shapes (aspect ratios of 0.01–0.04). This means that crack density – and not porosity – is the proper parameter of their concentration, in whose terms the effective properties should be expressed. It is also found that the microcrack density at the fracture point is proportional to relative volume of the strain-induced martensite. We also discuss relations between porosity and crack density.

AB - Microstructural information on damage in a metastable austenitic steel developed under low-cycle fatigue conditions is extracted from the acoustic monitoring of Poisson's ratio supplemented by the eddy current, and, under certain conditions, specific weight data. These data imply that damage has the form of мicropores of strongly oblate, crack-like shapes (aspect ratios of 0.01–0.04). This means that crack density – and not porosity – is the proper parameter of their concentration, in whose terms the effective properties should be expressed. It is also found that the microcrack density at the fracture point is proportional to relative volume of the strain-induced martensite. We also discuss relations between porosity and crack density.

KW - Austenitic steel

KW - Crack density

KW - Damage

KW - Fatigue

KW - Microcracking

KW - TRANSFORMATION

KW - MARTENSITE

KW - BEHAVIOR

KW - DEFORMATION

KW - DAMAGE

UR - http://www.scopus.com/inward/record.url?scp=85113743450&partnerID=8YFLogxK

U2 - 10.1016/j.ijengsci.2021.103569

DO - 10.1016/j.ijengsci.2021.103569

M3 - Article

AN - SCOPUS:85113743450

VL - 169

JO - International Journal of Engineering Science

JF - International Journal of Engineering Science

SN - 0020-7225

M1 - 103569

ER -

ID: 85364864