In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron

Motomichi Koyama; Daisuke Yamasaki; Tatsuya Nagashima; Cemal Cem Tasan; Kaneaki Tsuzaki

doi:10.1016/j.scriptamat.2016.10.027

In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron

Motomichi Koyama, Daisuke Yamasaki, Tatsuya Nagashima, Cemal Cem Tasan, Kaneaki Tsuzaki

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Abstract

An in situ silver decoration technique using a light microscope was developed. Hydrogen was introduced from the bottom surface of an annealed pure iron specimen, and its top surface was covered with a chemical solution containing silver ions. Samples were exposed for sufficient time for hydrogen permeation to occur from the back to the top surface. The resultant in situ silver decoration visualized that the hydrogen flux through low-angle grain boundaries is lower than that observed at high-angle grain boundaries. The in situ silver decoration technique can be used for kinetic analysis of solute hydrogen in ferritic iron and steels.

Original language	English
Pages (from-to)	48-51
Number of pages	4
Journal	Scripta Materialia
Volume	129
DOIs	https://doi.org/10.1016/j.scriptamat.2016.10.027
Publication status	Published - Mar 1 2017

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.2016.10.027

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title = "In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron",

abstract = "An in situ silver decoration technique using a light microscope was developed. Hydrogen was introduced from the bottom surface of an annealed pure iron specimen, and its top surface was covered with a chemical solution containing silver ions. Samples were exposed for sufficient time for hydrogen permeation to occur from the back to the top surface. The resultant in situ silver decoration visualized that the hydrogen flux through low-angle grain boundaries is lower than that observed at high-angle grain boundaries. The in situ silver decoration technique can be used for kinetic analysis of solute hydrogen in ferritic iron and steels.",

author = "Motomichi Koyama and Daisuke Yamasaki and Tatsuya Nagashima and Tasan, {Cemal Cem} and Kaneaki Tsuzaki",

note = "Funding Information: M. Koyama and K. Tsuzaki acknowledge the financial support by KAKENHI ( 15K18235 and 16H06365 ). The research project was supported by the Japan Science and Technology Agency (JST) (grant number: 20100113 ) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials”. Publisher Copyright: {\textcopyright} 2016 Acta Materialia Inc.",

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doi = "10.1016/j.scriptamat.2016.10.027",

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T1 - In situ observations of silver-decoration evolution under hydrogen permeation

T2 - Effects of grain boundary misorientation on hydrogen flux in pure iron

AU - Koyama, Motomichi

AU - Yamasaki, Daisuke

AU - Nagashima, Tatsuya

AU - Tasan, Cemal Cem

AU - Tsuzaki, Kaneaki

N1 - Funding Information: M. Koyama and K. Tsuzaki acknowledge the financial support by KAKENHI ( 15K18235 and 16H06365 ). The research project was supported by the Japan Science and Technology Agency (JST) (grant number: 20100113 ) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials”. Publisher Copyright: © 2016 Acta Materialia Inc.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - An in situ silver decoration technique using a light microscope was developed. Hydrogen was introduced from the bottom surface of an annealed pure iron specimen, and its top surface was covered with a chemical solution containing silver ions. Samples were exposed for sufficient time for hydrogen permeation to occur from the back to the top surface. The resultant in situ silver decoration visualized that the hydrogen flux through low-angle grain boundaries is lower than that observed at high-angle grain boundaries. The in situ silver decoration technique can be used for kinetic analysis of solute hydrogen in ferritic iron and steels.

AB - An in situ silver decoration technique using a light microscope was developed. Hydrogen was introduced from the bottom surface of an annealed pure iron specimen, and its top surface was covered with a chemical solution containing silver ions. Samples were exposed for sufficient time for hydrogen permeation to occur from the back to the top surface. The resultant in situ silver decoration visualized that the hydrogen flux through low-angle grain boundaries is lower than that observed at high-angle grain boundaries. The in situ silver decoration technique can be used for kinetic analysis of solute hydrogen in ferritic iron and steels.

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JO - Scripta Materialia

JF - Scripta Materialia

ER -

In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron

Abstract

All Science Journal Classification (ASJC) codes

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