Micro-pore development phenomenon in hydrogen pre-charged aluminum alloy studied using synchrotron X-ray micro-tomography | Zendy

Chandni Gupta | Zendy; Hiroyuki Toda | Zendy; T. Fujioka | Zendy; Masakazu Kobayashi | Zendy; Kentaro Uesugi | Zendy; Akihisa Takeuchi | Zendy; Yoshio Suzuki | Zendy

Open Access

Micro-pore development phenomenon in hydrogen pre-charged aluminum alloy studied using synchrotron X-ray micro-tomography

Author(s) -

Chandni Gupta,

Hiroyuki Toda,

T. Fujioka,

Masakazu Kobayashi,

Kentaro Uesugi,

Akihisa Takeuchi,

Yoshio Suzuki

Publication year - 2013

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4826274

Subject(s) - materials science , hydrogen , alloy , aluminium , synchrotron , cathodic protection , particle (ecology) , metallurgy , anode , chemistry , optics , physics , electrode , oceanography , organic chemistry , geology

The paper provides an insight into the development of the micropore damage phenomena during the hydrogen ingress and egress process in a high strength aluminum alloy. For this purpose high resolution micro tomography scans on samples subjected to combinations of cathodic hydrogen charging and de-sorption heat treatment were carried out. From the quantitative analysis, spatial mapping of pores and particles, and a probabilistic evaluation of the 3D datasets it was conclusively shown that the development of micropore damage during hydrogen ingress – egress had a non-trivial dependence on the particle size distribution. This potentially provides rationale to mitigate the deleterious effects of hydrogen in aluminium alloys by controlling particle size and distribution in the matrix

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