Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites

M. E. Launey; D. C. Hofmann; J.-Y. Suh; H. Kozachkov; W. L. Johnson; R. O. Ritchie

doi:10.1063/1.3156026

Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites

M. E. Launey
, D. C. Hofmann
, J.-Y. Suh
, H. Kozachkov
, W. L. Johnson
, R. O. Ritchie^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

63 Citations (Scopus)

Abstract

Nonlinear-elastic fracture mechanics methods are used to assess the fracture toughness of bulk metallic glass (BMG) composites; results are compared with similar measurements for other monolithic and composite BMG alloys. Mechanistically, plastic shielding gives rise to characteristic resistance-curve behavior where the fracture resistance increases with crack extension. Specifically, confinement of damage by second-phase dendrites is shown to result in enhancement of the toughness by nearly an order of magnitude relative to unreinforced glass.

Original language	English
Article number	241910
Journal	Applied Physics Letters
Volume	94
Issue number	24
DOIs	https://doi.org/10.1063/1.3156026
Publication status	Published - 15 Jun 2009
Externally published	Yes

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title = "Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites",

abstract = "Nonlinear-elastic fracture mechanics methods are used to assess the fracture toughness of bulk metallic glass (BMG) composites; results are compared with similar measurements for other monolithic and composite BMG alloys. Mechanistically, plastic shielding gives rise to characteristic resistance-curve behavior where the fracture resistance increases with crack extension. Specifically, confinement of damage by second-phase dendrites is shown to result in enhancement of the toughness by nearly an order of magnitude relative to unreinforced glass.",

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journal = "Applied Physics Letters",

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AU - Launey, M. E.

AU - Hofmann, D. C.

AU - Suh, J.-Y.

AU - Kozachkov, H.

AU - Johnson, W. L.

AU - Ritchie, R. O.

PY - 2009/6/15

Y1 - 2009/6/15

N2 - Nonlinear-elastic fracture mechanics methods are used to assess the fracture toughness of bulk metallic glass (BMG) composites; results are compared with similar measurements for other monolithic and composite BMG alloys. Mechanistically, plastic shielding gives rise to characteristic resistance-curve behavior where the fracture resistance increases with crack extension. Specifically, confinement of damage by second-phase dendrites is shown to result in enhancement of the toughness by nearly an order of magnitude relative to unreinforced glass.

AB - Nonlinear-elastic fracture mechanics methods are used to assess the fracture toughness of bulk metallic glass (BMG) composites; results are compared with similar measurements for other monolithic and composite BMG alloys. Mechanistically, plastic shielding gives rise to characteristic resistance-curve behavior where the fracture resistance increases with crack extension. Specifically, confinement of damage by second-phase dendrites is shown to result in enhancement of the toughness by nearly an order of magnitude relative to unreinforced glass.

UR - https://www.scopus.com/pages/publications/67649221427

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-67649221427&origin=recordpage

U2 - 10.1063/1.3156026

DO - 10.1063/1.3156026

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

M1 - 241910

ER -

Fracture toughness and crack-resistance curve behavior in metallic glass-matrix composites

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