Model of local hydrogen permeability in stainless steel with two coexisting structures

Abstract The dynamics of hydrogen in metals with mixed grain structure is not well understood at a microscopic scale. One of the biggest issues facing the hydrogen economy is “hydrogen embrittlement” of metal induced by hydrogen entering and diffusing into the material. Hydrogen diffusion in metalli...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Akiko N. Itakura, Naoya Miyauchi, Yoshiharu Murase, Taro Yakabe, Masahiro Kitajima, Satoka Aoyagi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/57ec8130825f45f2bdb88f12c271bd36
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:57ec8130825f45f2bdb88f12c271bd36
record_format	dspace
spelling	oai:doaj.org-article:57ec8130825f45f2bdb88f12c271bd362021-12-02T18:27:49ZModel of local hydrogen permeability in stainless steel with two coexisting structures10.1038/s41598-021-87727-52045-2322https://doaj.org/article/57ec8130825f45f2bdb88f12c271bd362021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87727-5https://doaj.org/toc/2045-2322Abstract The dynamics of hydrogen in metals with mixed grain structure is not well understood at a microscopic scale. One of the biggest issues facing the hydrogen economy is “hydrogen embrittlement” of metal induced by hydrogen entering and diffusing into the material. Hydrogen diffusion in metallic materials is difficult to grasp owing to the non-uniform compositions and structures of metal. Here a time-resolved “operando hydrogen microscope” was used to interpret local diffusion behaviour of hydrogen in the microstructure of a stainless steel with austenite and martensite structures. The martensite/austenite ratios differed in each local region of the sample. The path of hydrogen permeation was inferred from the time evolution of hydrogen permeation in several regions. We proposed a model of hydrogen diffusion in a dual-structure material and verified the validity of the model by simulations that took into account the transfer of hydrogen at the interfaces.Akiko N. ItakuraNaoya MiyauchiYoshiharu MuraseTaro YakabeMasahiro KitajimaSatoka AoyagiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Akiko N. Itakura Naoya Miyauchi Yoshiharu Murase Taro Yakabe Masahiro Kitajima Satoka Aoyagi Model of local hydrogen permeability in stainless steel with two coexisting structures
description	Abstract The dynamics of hydrogen in metals with mixed grain structure is not well understood at a microscopic scale. One of the biggest issues facing the hydrogen economy is “hydrogen embrittlement” of metal induced by hydrogen entering and diffusing into the material. Hydrogen diffusion in metallic materials is difficult to grasp owing to the non-uniform compositions and structures of metal. Here a time-resolved “operando hydrogen microscope” was used to interpret local diffusion behaviour of hydrogen in the microstructure of a stainless steel with austenite and martensite structures. The martensite/austenite ratios differed in each local region of the sample. The path of hydrogen permeation was inferred from the time evolution of hydrogen permeation in several regions. We proposed a model of hydrogen diffusion in a dual-structure material and verified the validity of the model by simulations that took into account the transfer of hydrogen at the interfaces.
format	article
author	Akiko N. Itakura Naoya Miyauchi Yoshiharu Murase Taro Yakabe Masahiro Kitajima Satoka Aoyagi
author_facet	Akiko N. Itakura Naoya Miyauchi Yoshiharu Murase Taro Yakabe Masahiro Kitajima Satoka Aoyagi
author_sort	Akiko N. Itakura
title	Model of local hydrogen permeability in stainless steel with two coexisting structures
title_short	Model of local hydrogen permeability in stainless steel with two coexisting structures
title_full	Model of local hydrogen permeability in stainless steel with two coexisting structures
title_fullStr	Model of local hydrogen permeability in stainless steel with two coexisting structures
title_full_unstemmed	Model of local hydrogen permeability in stainless steel with two coexisting structures
title_sort	model of local hydrogen permeability in stainless steel with two coexisting structures
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/57ec8130825f45f2bdb88f12c271bd36
work_keys_str_mv	AT akikonitakura modeloflocalhydrogenpermeabilityinstainlesssteelwithtwocoexistingstructures AT naoyamiyauchi modeloflocalhydrogenpermeabilityinstainlesssteelwithtwocoexistingstructures AT yoshiharumurase modeloflocalhydrogenpermeabilityinstainlesssteelwithtwocoexistingstructures AT taroyakabe modeloflocalhydrogenpermeabilityinstainlesssteelwithtwocoexistingstructures AT masahirokitajima modeloflocalhydrogenpermeabilityinstainlesssteelwithtwocoexistingstructures AT satokaaoyagi modeloflocalhydrogenpermeabilityinstainlesssteelwithtwocoexistingstructures
_version_	1718377977465536512

Model of local hydrogen permeability in stainless steel with two coexisting structures

Ejemplares similares