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

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

9 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 - Jun 1 2017

All Science Journal Classification (ASJC) codes

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

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10.1016/j.matchar.2017.04.010

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Multiscale in situ deformation experiments : A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy. / Koyama, Motomichi; Yamanouchi, Keita; Wang, Qinghua; Ri, Shien; Tanaka, Yoshihisa; Hamano, Yasuaki; Yamasaki, Shigeto ; Mitsuhara, Masatoshi; Ohkubo, Masataka; Noguchi, Hiroshi; Tsuzaki, Kaneaki.

In: Materials Characterization, Vol. 128, 01.06.2017, p. 217-225.

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

Koyama, Motomichi ; Yamanouchi, Keita ; Wang, Qinghua ; Ri, Shien ; Tanaka, Yoshihisa ; Hamano, Yasuaki ; Yamasaki, Shigeto ; Mitsuhara, Masatoshi ; Ohkubo, Masataka ; Noguchi, Hiroshi ; Tsuzaki, Kaneaki. / Multiscale in situ deformation experiments : A sequential process from strain localization to failure in a laminated Ti-6Al-4V alloy. In: Materials Characterization. 2017 ; Vol. 128. pp. 217-225.

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AU - Ri, Shien

AU - Tanaka, Yoshihisa

AU - Hamano, Yasuaki

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AU - Mitsuhara, Masatoshi

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AU - Noguchi, Hiroshi

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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.

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

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