Tensile fracture behavior of a Zr-based bulk metallic glass subjected to HPT

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Tensile fracture behavior of a Zr-based bulk metallic glass subjected to HPT. / Gunderov, D. V.; Boltynuk, E. V.; Ubyivovk, E. V.; Churakova, A. A.; Lukyanov, A. V.; Raab, A. G.; Khasanova, D. A.; Churyumov, A. Yu.

In: Письма о материалах, Vol. 6, No. 4, 12.2016, p. 322-326.

Research output: Contribution to journal › Article › peer-review

Author

Gunderov, D. V. ; Boltynuk, E. V. ; Ubyivovk, E. V. ; Churakova, A. A. ; Lukyanov, A. V. ; Raab, A. G. ; Khasanova, D. A. ; Churyumov, A. Yu. / Tensile fracture behavior of a Zr-based bulk metallic glass subjected to HPT. In: Письма о материалах. 2016 ; Vol. 6, No. 4. pp. 322-326.

BibTeX

@article{cc7e5a40d1a14272a4987d075e4dca8f,

title = "Tensile fracture behavior of a Zr-based bulk metallic glass subjected to HPT",

abstract = "The microstructure and mechanical properties of the Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) processed by high pressure torsion (HPT) at temperatures of 20° and 150°С were investigated. Transmission electron microscopy and XRD studies did not reveal any structural transformations. The material in both initial amorphous state and after HPT processing demonstrates brittle fracture under uniaxial tensile testing at temperatures in the range of 20 – 300°C. The maximum fracture stress of the material in the initial state is 1410 MPa. Fracture stress of the HPT-processed states is lower in comparison with that of the initial state due to the presence of microcracks in the HPT-processed samples. The values of the maximum fracture stress are 250 and 1240 MPa for the samples processed by HPT at 20° and 150°С, respectively. Fracture surfaces of the material in the initial state and after HPT processing have different morphologies due to structural transformations induced by HPT processing. Annealing of the samples in the initial state and after HPT processing results in smaller grain size in the HPT-processed samples in comparison with the initial samples. However, microindentation reveals that hardness of the material in the initial state after annealing is noticeably higher than hardness of the HPT processed alloy after the same annealing. Thus, it can be outlined that HPT processing affects the microstructure evolution in the material during further annealing. {\textcopyright} 2016, Institute for Metals Superplasticity Problems of Russian Academy of Sciences. All rights reserved.",

keywords = "amorphous alloys, severe plastic deformation, structures, mechanical properties, SEVERE PLASTIC-DEFORMATION, HIGH-PRESSURE TORSION, NANOSTRUCTURED MATERIALS, MECHANICAL-PROPERTIES, ALLOYS, TRANSFORMATIONS, TI49.4NI50.6, STATES, amorphous alloys, severe plastic deformation, structures, mechanical properties",

author = "Gunderov, {D. V.} and Boltynuk, {E. V.} and Ubyivovk, {E. V.} and Churakova, {A. A.} and Lukyanov, {A. V.} and Raab, {A. G.} and Khasanova, {D. A.} and Churyumov, {A. Yu.}",

note = "Категории Scopus: Materials Science (miscellaneous) Категории Web of Science:Materials Science, Multidisciplinary",

year = "2016",

month = dec,

doi = "10.22226/2410-3535-2016-4-322-326",

language = "русский",

volume = "6",

pages = "322--326",

journal = "Letters on Materials",

issn = "2218-5046",

publisher = "RUSSIAN ACAD SCIENCES, INST METALS SUPERPLASTICITY PROBLEMS",

number = "4",

}

RIS

TY - JOUR

T1 - Tensile fracture behavior of a Zr-based bulk metallic glass subjected to HPT

AU - Gunderov, D. V.

AU - Boltynuk, E. V.

AU - Ubyivovk, E. V.

AU - Churakova, A. A.

AU - Lukyanov, A. V.

AU - Raab, A. G.

AU - Khasanova, D. A.

AU - Churyumov, A. Yu.

N1 - Категории Scopus: Materials Science (miscellaneous) Категории Web of Science:Materials Science, Multidisciplinary

PY - 2016/12

Y1 - 2016/12

N2 - The microstructure and mechanical properties of the Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) processed by high pressure torsion (HPT) at temperatures of 20° and 150°С were investigated. Transmission electron microscopy and XRD studies did not reveal any structural transformations. The material in both initial amorphous state and after HPT processing demonstrates brittle fracture under uniaxial tensile testing at temperatures in the range of 20 – 300°C. The maximum fracture stress of the material in the initial state is 1410 MPa. Fracture stress of the HPT-processed states is lower in comparison with that of the initial state due to the presence of microcracks in the HPT-processed samples. The values of the maximum fracture stress are 250 and 1240 MPa for the samples processed by HPT at 20° and 150°С, respectively. Fracture surfaces of the material in the initial state and after HPT processing have different morphologies due to structural transformations induced by HPT processing. Annealing of the samples in the initial state and after HPT processing results in smaller grain size in the HPT-processed samples in comparison with the initial samples. However, microindentation reveals that hardness of the material in the initial state after annealing is noticeably higher than hardness of the HPT processed alloy after the same annealing. Thus, it can be outlined that HPT processing affects the microstructure evolution in the material during further annealing. © 2016, Institute for Metals Superplasticity Problems of Russian Academy of Sciences. All rights reserved.

AB - The microstructure and mechanical properties of the Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) processed by high pressure torsion (HPT) at temperatures of 20° and 150°С were investigated. Transmission electron microscopy and XRD studies did not reveal any structural transformations. The material in both initial amorphous state and after HPT processing demonstrates brittle fracture under uniaxial tensile testing at temperatures in the range of 20 – 300°C. The maximum fracture stress of the material in the initial state is 1410 MPa. Fracture stress of the HPT-processed states is lower in comparison with that of the initial state due to the presence of microcracks in the HPT-processed samples. The values of the maximum fracture stress are 250 and 1240 MPa for the samples processed by HPT at 20° and 150°С, respectively. Fracture surfaces of the material in the initial state and after HPT processing have different morphologies due to structural transformations induced by HPT processing. Annealing of the samples in the initial state and after HPT processing results in smaller grain size in the HPT-processed samples in comparison with the initial samples. However, microindentation reveals that hardness of the material in the initial state after annealing is noticeably higher than hardness of the HPT processed alloy after the same annealing. Thus, it can be outlined that HPT processing affects the microstructure evolution in the material during further annealing. © 2016, Institute for Metals Superplasticity Problems of Russian Academy of Sciences. All rights reserved.

KW - amorphous alloys

KW - severe plastic deformation

KW - structures

KW - mechanical properties

KW - SEVERE PLASTIC-DEFORMATION

KW - HIGH-PRESSURE TORSION

KW - NANOSTRUCTURED MATERIALS

KW - MECHANICAL-PROPERTIES

KW - ALLOYS

KW - TRANSFORMATIONS

KW - TI49.4NI50.6

KW - STATES

KW - amorphous alloys

KW - severe plastic deformation

KW - structures

KW - mechanical properties

U2 - 10.22226/2410-3535-2016-4-322-326

DO - 10.22226/2410-3535-2016-4-322-326

M3 - статья

VL - 6

SP - 322

EP - 326

JO - Letters on Materials

JF - Letters on Materials

SN - 2218-5046

IS - 4

ER -

ID: 7966368