Relaxation of mechanical stresses in Ni<sub>3</sub>Al single crystals irradiated with high-power ion beams

Abstract

Transmission electron microscopy and microhardness measurements were used to study mechanisms of strengthening and the formation of the defect substructure in the course of relaxation of thermomechanical stresses generated in single crystals of Ni₃Al by high-power ion beams (HIBs) of carbon and hydrogen at a power density of 5 × 10⁷ and 10⁸ W/cm². The main structural types of plastic flow localization zones that are formed as a result of activation of collective modes of relaxation of stresses generated by HIBs were revealed. The fine defect structure of these zones was studied in detail. The nature and possible mechanisms of deformation localization in the zone of ion-beam modification are discussed.

Original language	English
Pages (from-to)	618-625
Number of pages	8
Journal	Physics of Metals and Metallography
Volume	90
Issue number	6
Publication status	Published - Dec 2000

ASJC Scopus subject areas

Metals and Alloys

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@article{82a61fb3861e4a429e67fcae8bb5176e,

title = "Relaxation of mechanical stresses in Ni3Al single crystals irradiated with high-power ion beams",

abstract = "Transmission electron microscopy and microhardness measurements were used to study mechanisms of strengthening and the formation of the defect substructure in the course of relaxation of thermomechanical stresses generated in single crystals of Ni3Al by high-power ion beams (HIBs) of carbon and hydrogen at a power density of 5 × 107 and 108 W/cm2. The main structural types of plastic flow localization zones that are formed as a result of activation of collective modes of relaxation of stresses generated by HIBs were revealed. The fine defect structure of these zones was studied in detail. The nature and possible mechanisms of deformation localization in the zone of ion-beam modification are discussed.",

author = "Tyumentsev, {A. N.} and Tret'yak, {M. V.} and Korotaev, {A. D.} and Pinzhin, {Yu P.} and Shchipakin, {D. A.} and Remnev, {G. E.} and Isakov, {I. F.}",

year = "2000",

month = dec,

language = "English",

volume = "90",

pages = "618--625",

journal = "Physics of Metals and Metallography",

issn = "0031-918X",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "6",

}

TY - JOUR

T1 - Relaxation of mechanical stresses in Ni3Al single crystals irradiated with high-power ion beams

AU - Tyumentsev, A. N.

AU - Tret'yak, M. V.

AU - Korotaev, A. D.

AU - Pinzhin, Yu P.

AU - Shchipakin, D. A.

AU - Remnev, G. E.

AU - Isakov, I. F.

PY - 2000/12

Y1 - 2000/12

N2 - Transmission electron microscopy and microhardness measurements were used to study mechanisms of strengthening and the formation of the defect substructure in the course of relaxation of thermomechanical stresses generated in single crystals of Ni3Al by high-power ion beams (HIBs) of carbon and hydrogen at a power density of 5 × 107 and 108 W/cm2. The main structural types of plastic flow localization zones that are formed as a result of activation of collective modes of relaxation of stresses generated by HIBs were revealed. The fine defect structure of these zones was studied in detail. The nature and possible mechanisms of deformation localization in the zone of ion-beam modification are discussed.

AB - Transmission electron microscopy and microhardness measurements were used to study mechanisms of strengthening and the formation of the defect substructure in the course of relaxation of thermomechanical stresses generated in single crystals of Ni3Al by high-power ion beams (HIBs) of carbon and hydrogen at a power density of 5 × 107 and 108 W/cm2. The main structural types of plastic flow localization zones that are formed as a result of activation of collective modes of relaxation of stresses generated by HIBs were revealed. The fine defect structure of these zones was studied in detail. The nature and possible mechanisms of deformation localization in the zone of ion-beam modification are discussed.

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M3 - Article

AN - SCOPUS:0034343282

VL - 90

SP - 618

EP - 625

JO - Physics of Metals and Metallography

JF - Physics of Metals and Metallography

SN - 0031-918X

IS - 6

ER -