Multiscale in situ deformation experiments: A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy

Motomichi Koyama; Keita Yamanouchi; Qinghua Wang; Shien Ri; Yoshihisa Tanaka; Yasuaki Hamano; Shigeto Yamasaki; Masatoshi Mitsuhara; Masataka Ohkubo; Hiroshi Noguchi; Kaneaki Tsuzaki

doi:10.1016/j.matchar.2017.04.010

Multiscale in situ deformation experiments: A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy

Motomichi Koyama, Keita Yamanouchi, Qinghua Wang, Shien Ri, Yoshihisa Tanaka, Yasuaki Hamano, Shigeto Yamasaki, Masatoshi Mitsuhara, Masataka Ohkubo, Hiroshi Noguchi, Kaneaki Tsuzaki

IMR - Materials Design Division

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

14 Citations (Scopus)

Abstract

The microscopic factors causing tensile failure of an α/β laminated Ti-6Al-4V alloy were investigated through in situ scanning electron microscopy and sampling moiré at an ambient temperature. Specifically, multiscale in situ microscopic observations were conducted to extract the most crucial factor of the failure. Slip localization in the vicinity of an intergranular α-sheet was clarified to be the primary factor that causes failure of the Ti-6Al-4V alloy. In addition, no relationship between interfacial strain localization and macroscopic shear localization at 45 degrees against the tensile direction was observed.

Original language	English
Pages (from-to)	217-225
Number of pages	9
Journal	Materials Characterization
Volume	128
DOIs	https://doi.org/10.1016/j.matchar.2017.04.010
Publication status	Published - 2017 Jun 1

Keywords

Dual phase
In situ
Lamella
Sampling moiré
Strain localization
Titanium

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10.1016/j.matchar.2017.04.010

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title = "Multiscale in situ deformation experiments: A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy",

abstract = "The microscopic factors causing tensile failure of an α/β laminated Ti-6Al-4V alloy were investigated through in situ scanning electron microscopy and sampling moir{\'e} at an ambient temperature. Specifically, multiscale in situ microscopic observations were conducted to extract the most crucial factor of the failure. Slip localization in the vicinity of an intergranular α-sheet was clarified to be the primary factor that causes failure of the Ti-6Al-4V alloy. In addition, no relationship between interfacial strain localization and macroscopic shear localization at 45 degrees against the tensile direction was observed.",

keywords = "Dual phase, In situ, Lamella, Sampling moir{\'e}, Strain localization, Titanium",

author = "Motomichi Koyama and Keita Yamanouchi and Qinghua Wang and Shien Ri and Yoshihisa Tanaka and Yasuaki Hamano and Shigeto Yamasaki and Masatoshi Mitsuhara and Masataka Ohkubo and Hiroshi Noguchi and Kaneaki Tsuzaki",

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doi = "10.1016/j.matchar.2017.04.010",

language = "English",

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T1 - Multiscale in situ deformation experiments

T2 - A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy

AU - Koyama, Motomichi

AU - Yamanouchi, Keita

AU - Wang, Qinghua

AU - Ri, Shien

AU - Tanaka, Yoshihisa

AU - Hamano, Yasuaki

AU - Yamasaki, Shigeto

AU - Mitsuhara, Masatoshi

AU - Ohkubo, Masataka

AU - Noguchi, Hiroshi

AU - Tsuzaki, Kaneaki

PY - 2017/6/1

Y1 - 2017/6/1

N2 - The microscopic factors causing tensile failure of an α/β laminated Ti-6Al-4V alloy were investigated through in situ scanning electron microscopy and sampling moiré at an ambient temperature. Specifically, multiscale in situ microscopic observations were conducted to extract the most crucial factor of the failure. Slip localization in the vicinity of an intergranular α-sheet was clarified to be the primary factor that causes failure of the Ti-6Al-4V alloy. In addition, no relationship between interfacial strain localization and macroscopic shear localization at 45 degrees against the tensile direction was observed.

AB - The microscopic factors causing tensile failure of an α/β laminated Ti-6Al-4V alloy were investigated through in situ scanning electron microscopy and sampling moiré at an ambient temperature. Specifically, multiscale in situ microscopic observations were conducted to extract the most crucial factor of the failure. Slip localization in the vicinity of an intergranular α-sheet was clarified to be the primary factor that causes failure of the Ti-6Al-4V alloy. In addition, no relationship between interfacial strain localization and macroscopic shear localization at 45 degrees against the tensile direction was observed.

KW - Dual phase

KW - In situ

KW - Lamella

KW - Sampling moiré

KW - Strain localization

KW - Titanium

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EP - 225

JO - Materials Characterization

JF - Materials Characterization

ER -

Multiscale in situ deformation experiments: A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy

Abstract

Keywords

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