Indentation behavior of a ZCAP-3 bulk metallic glass: Effects of the fatigue deformation

Fuqian Yang; Hongmei Dang; Gongyao Wang; Yoshihiko Yokoyama; Peter K. Liaw

doi:10.1557/jmr.2009.0270

Indentation behavior of a ZCAP-3 bulk metallic glass: Effects of the fatigue deformation

Fuqian Yang
, Hongmei Dang
, Gongyao Wang
, Yoshihiko Yokoyama
, Peter K. Liaw

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

4 Scopus citations

Abstract

The effects of the fatigue deformation on the localized deformation of a ZCAP-3 bulk metallic glass (BMG) were studied using the nanoindentation technique. A localized mechanical hardening was observed in the ZCAP-3 BMG between the shear bands in the fatigue-damaged zone. In contrast to the indentations of the BMG made far away from the fatigue-damaged zone, there was no indentation size effect. Both the reduced contact modulus and the indentation hardness were larger than those corresponding to the indentations of the ZCAP-3 BMG in the undamaged zone. These observations revealed the possible effects of local heating and stress-induced atomic rearrangements (i.e., inelastic deformation) on the reduction of the free volume in the BMG from the propagation of the fatigue crack.

Original language	English
Pages (from-to)	2346-2352
Number of pages	7
Journal	Journal of Materials Research
Volume	24
Issue number	7
DOIs	https://doi.org/10.1557/jmr.2009.0270
State	Published - Jul 2009

Bibliographical note

Funding Information:
F.Q. Yang is grateful for support from the National Science Foundation (NSF) Grants CMS-0508989 and CMMI 0800018. P.K. Liaw and G.Y. Wang are supported by the International Materials Institutes (IMI) program, DMR-0231320, with Dr. C. Huber as the program director.

Funding

F.Q. Yang is grateful for support from the National Science Foundation (NSF) Grants CMS-0508989 and CMMI 0800018. P.K. Liaw and G.Y. Wang are supported by the International Materials Institutes (IMI) program, DMR-0231320, with Dr. C. Huber as the program director.

Funders	Funder number
National Science Foundation (NSF)	CMMI 0800018, CMS-0508989

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Indentation behavior of a ZCAP-3 bulk metallic glass: Effects of the fatigue deformation",

abstract = "The effects of the fatigue deformation on the localized deformation of a ZCAP-3 bulk metallic glass (BMG) were studied using the nanoindentation technique. A localized mechanical hardening was observed in the ZCAP-3 BMG between the shear bands in the fatigue-damaged zone. In contrast to the indentations of the BMG made far away from the fatigue-damaged zone, there was no indentation size effect. Both the reduced contact modulus and the indentation hardness were larger than those corresponding to the indentations of the ZCAP-3 BMG in the undamaged zone. These observations revealed the possible effects of local heating and stress-induced atomic rearrangements (i.e., inelastic deformation) on the reduction of the free volume in the BMG from the propagation of the fatigue crack.",

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note = "Funding Information: F.Q. Yang is grateful for support from the National Science Foundation (NSF) Grants CMS-0508989 and CMMI 0800018. P.K. Liaw and G.Y. Wang are supported by the International Materials Institutes (IMI) program, DMR-0231320, with Dr. C. Huber as the program director.",

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AU - Yokoyama, Yoshihiko

AU - Liaw, Peter K.

N1 - Funding Information: F.Q. Yang is grateful for support from the National Science Foundation (NSF) Grants CMS-0508989 and CMMI 0800018. P.K. Liaw and G.Y. Wang are supported by the International Materials Institutes (IMI) program, DMR-0231320, with Dr. C. Huber as the program director.

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N2 - The effects of the fatigue deformation on the localized deformation of a ZCAP-3 bulk metallic glass (BMG) were studied using the nanoindentation technique. A localized mechanical hardening was observed in the ZCAP-3 BMG between the shear bands in the fatigue-damaged zone. In contrast to the indentations of the BMG made far away from the fatigue-damaged zone, there was no indentation size effect. Both the reduced contact modulus and the indentation hardness were larger than those corresponding to the indentations of the ZCAP-3 BMG in the undamaged zone. These observations revealed the possible effects of local heating and stress-induced atomic rearrangements (i.e., inelastic deformation) on the reduction of the free volume in the BMG from the propagation of the fatigue crack.

AB - The effects of the fatigue deformation on the localized deformation of a ZCAP-3 bulk metallic glass (BMG) were studied using the nanoindentation technique. A localized mechanical hardening was observed in the ZCAP-3 BMG between the shear bands in the fatigue-damaged zone. In contrast to the indentations of the BMG made far away from the fatigue-damaged zone, there was no indentation size effect. Both the reduced contact modulus and the indentation hardness were larger than those corresponding to the indentations of the ZCAP-3 BMG in the undamaged zone. These observations revealed the possible effects of local heating and stress-induced atomic rearrangements (i.e., inelastic deformation) on the reduction of the free volume in the BMG from the propagation of the fatigue crack.

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Indentation behavior of a ZCAP-3 bulk metallic glass: Effects of the fatigue deformation

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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