State of 3-D micro-damage in hydrogen redistributed regions of precharged high strength aluminium alloy

C. Gupta; H. Toda; T. Fujioka; M. Kobayashi; H. Hoshino; K. Uesugi; A. Takeuchi; Y. Suzuki

doi:10.1016/j.corsci.2016.04.050

State of 3-D micro-damage in hydrogen redistributed regions of precharged high strength aluminium alloy

C. Gupta, H. Toda, T. Fujioka, M. Kobayashi, H. Hoshino, K. Uesugi, A. Takeuchi, Y. Suzuki

Strength of materials

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

A comparison of the state of 3-D micro-damage induced by hydrogen redistribution due to thermal treatment and deformation near an intergranular fracture surface is carried out in high strength aluminium alloy using synchrotron microtomography. The mapping of various types of micro-damage provides evidence that hydrogen redistribution occurs along with a change in content and shape of micro-pores. The presence of intergranular cracks and an extended agglomerated micro-pore damage state are found to be in close proximity to each other, suggesting a mechanistic relationship for both formation of the unique damage architecture and insidious manifestation of embrittlement in high strength aluminium alloys.

Original language	English
Pages (from-to)	26-38
Number of pages	13
Journal	Corrosion Science
Volume	111
DOIs	https://doi.org/10.1016/j.corsci.2016.04.050
Publication status	Published - Oct 1 2016

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2016.04.050

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title = "State of 3-D micro-damage in hydrogen redistributed regions of precharged high strength aluminium alloy",

abstract = "A comparison of the state of 3-D micro-damage induced by hydrogen redistribution due to thermal treatment and deformation near an intergranular fracture surface is carried out in high strength aluminium alloy using synchrotron microtomography. The mapping of various types of micro-damage provides evidence that hydrogen redistribution occurs along with a change in content and shape of micro-pores. The presence of intergranular cracks and an extended agglomerated micro-pore damage state are found to be in close proximity to each other, suggesting a mechanistic relationship for both formation of the unique damage architecture and insidious manifestation of embrittlement in high strength aluminium alloys.",

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AU - Gupta, C.

AU - Toda, H.

AU - Fujioka, T.

AU - Kobayashi, M.

AU - Hoshino, H.

AU - Uesugi, K.

AU - Takeuchi, A.

AU - Suzuki, Y.

PY - 2016/10/1

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N2 - A comparison of the state of 3-D micro-damage induced by hydrogen redistribution due to thermal treatment and deformation near an intergranular fracture surface is carried out in high strength aluminium alloy using synchrotron microtomography. The mapping of various types of micro-damage provides evidence that hydrogen redistribution occurs along with a change in content and shape of micro-pores. The presence of intergranular cracks and an extended agglomerated micro-pore damage state are found to be in close proximity to each other, suggesting a mechanistic relationship for both formation of the unique damage architecture and insidious manifestation of embrittlement in high strength aluminium alloys.

AB - A comparison of the state of 3-D micro-damage induced by hydrogen redistribution due to thermal treatment and deformation near an intergranular fracture surface is carried out in high strength aluminium alloy using synchrotron microtomography. The mapping of various types of micro-damage provides evidence that hydrogen redistribution occurs along with a change in content and shape of micro-pores. The presence of intergranular cracks and an extended agglomerated micro-pore damage state are found to be in close proximity to each other, suggesting a mechanistic relationship for both formation of the unique damage architecture and insidious manifestation of embrittlement in high strength aluminium alloys.

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