Review: Hydrogen Embrittlement of Metals and Alloys in Combustion Engine

 

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Autores: Saborío-González, Maricruz, Rojas-Hernández, Isaac
Formato: artículo original
Estado:Versión publicada
Data de Publicação:2018
Descrição:In order to address the oil dependency and depletion challenges,  environmental impact of its usage and the current increasing transportation costs, an application of hydrogen enrichment of internal combustion engines (ICE) technique in vehicles is proposed. As a first step, a review is presented to study the hydrogen degradation effect on common materials that are used  to build engines. This review will support a feasibility analysis to determine if automobile engine materials have the potential to use hydrogen enriched fuels.The most relevant reviewed topics included in this article are: i) description of the currently used materials in combustion engine  manufacturing; ii) new materials applied to hydrogen enriched engines; iii) hydrogen embrittlement mechanisms and classification; iv) embrittlement accelerating factors; and v) case studies involving hydrogen embrittlement.It was found that specific conditions, such as pressure, temperature, material  composition and hydrogen purity determine the ideal material to be used in a hydrogen enriched environment. Some of the reviewed researches propose the usage of high purity aluminum or titanium steel alloys, materials that could be applied in ICE manufacturing to withstand hydrogen embrittlement.
País:Portal de Revistas TEC
Recursos:Instituto Tecnológico de Costa Rica
Repositorio:Portal de Revistas TEC
Idioma:Español
OAI Identifier:oai:ojs.pkp.sfu.ca:article/3620
Acesso em linha:https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/3620
Palavra-chave:Fractura por estrés
corrosión
fragilización
adsorción
absorción.
Stress cracking
corrosion
embrittlement
adsorption
absorption.