Nature of delamination cracks in pearlitic steels

Masaki Tanaka; Hayato Saito; Motoki Yasumaru; Kenji Higashida

doi:10.1016/j.scriptamat.2015.09.004

Nature of delamination cracks in pearlitic steels

Masaki Tanaka, Hayato Saito, Motoki Yasumaru, Kenji Higashida

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

27 Citations (Scopus)

Abstract

Wire-drawn fully pearlitic steel was twisted at room temperature. As a result, a delamination crack propagated along the longitudinal direction of the wire. Backscattered electron and transmission electron microscopy images indicated that the cementite lamellae beneath the delamination crack had vanished. In addition, a fine-grained structure was observed. This indicated that the delamination fracture was not a brittle one but a shear one associated with local severe plastic deformation.

Original language	English
Pages (from-to)	32-36
Number of pages	5
Journal	Scripta Materialia
Volume	112
DOIs	https://doi.org/10.1016/j.scriptamat.2015.09.004
Publication status	Published - Feb 2016

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2015.09.004

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title = "Nature of delamination cracks in pearlitic steels",

abstract = "Wire-drawn fully pearlitic steel was twisted at room temperature. As a result, a delamination crack propagated along the longitudinal direction of the wire. Backscattered electron and transmission electron microscopy images indicated that the cementite lamellae beneath the delamination crack had vanished. In addition, a fine-grained structure was observed. This indicated that the delamination fracture was not a brittle one but a shear one associated with local severe plastic deformation.",

author = "Masaki Tanaka and Hayato Saito and Motoki Yasumaru and Kenji Higashida",

note = "Funding Information: Part of this work was supported by the Japan Science and Technology Agency (JST) under the Collaborative Research Based on Industrial Demand project named “Heterogeneous structure control: towards innovative development of metallic structural materials.”",

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AU - Tanaka, Masaki

AU - Saito, Hayato

AU - Yasumaru, Motoki

AU - Higashida, Kenji

N1 - Funding Information: Part of this work was supported by the Japan Science and Technology Agency (JST) under the Collaborative Research Based on Industrial Demand project named “Heterogeneous structure control: towards innovative development of metallic structural materials.”

PY - 2016/2

Y1 - 2016/2

N2 - Wire-drawn fully pearlitic steel was twisted at room temperature. As a result, a delamination crack propagated along the longitudinal direction of the wire. Backscattered electron and transmission electron microscopy images indicated that the cementite lamellae beneath the delamination crack had vanished. In addition, a fine-grained structure was observed. This indicated that the delamination fracture was not a brittle one but a shear one associated with local severe plastic deformation.

AB - Wire-drawn fully pearlitic steel was twisted at room temperature. As a result, a delamination crack propagated along the longitudinal direction of the wire. Backscattered electron and transmission electron microscopy images indicated that the cementite lamellae beneath the delamination crack had vanished. In addition, a fine-grained structure was observed. This indicated that the delamination fracture was not a brittle one but a shear one associated with local severe plastic deformation.

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EP - 36

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

ER -

Nature of delamination cracks in pearlitic steels

Abstract

All Science Journal Classification (ASJC) codes

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