Research of Hydrogen Embrittlement in HYDROGENIUS

Abstract

Research and development of hydrogen energy systems such as fuel cell vehicles and hydrogen energy infrastructures such as hydrogen stations are advanced as one of the strong means to solve global environmental concerns. In 2006, ‘HYDROGENIUS (the Research Center for Hvdrogen Industrial Use and storage)’ was founded in AIST to investigate the basic mechanism of hydrogen embrittlement and to establish the guideline of safe utilization of materials with hydrogen. In this report, the results obtained by the Hydrogen Fatigue and Fracture Team in HYDROGENIUS in three years between 2006 and 2008, especially the hydrogen entry properties, tensile properties and fatigue crack growth properties are reported, taking account to the clarification of the basic mechanism of hydrogen embrittlement.