Hydrogen trapping on lattice defects produced by high-pressure torsion in Fe-0.01 mass% C alloy

Yoji Mine; Takayuki Tsumagari; Zenji Horita

doi:10.1016/j.scriptamat.2010.05.027

Hydrogen trapping on lattice defects produced by high-pressure torsion in Fe-0.01 mass% C alloy

Yoji Mine, Takayuki Tsumagari, Zenji Horita

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

29 Citations (Scopus)

Abstract

Hydrogen trapping in Fe-0.01 mass% C with ultrafine-grained structures produced by high-pressure torsion (HPT) was investigated by thermal desorption spectrometry. Hydrogen trapping in body-centred cubic iron was significantly increased by HPT processing through introduction of lattice defects such as vacancies, dislocations and grain boundaries. Decreasing the density of vacancies, dislocations and low-angle grain boundaries by post-HPT annealing is effective in reducing the trapped hydrogen while the hardness remains enhanced through grain refinement with high-angle boundaries.

Original language	English
Pages (from-to)	552-555
Number of pages	4
Journal	Scripta Materialia
Volume	63
Issue number	5
DOIs	https://doi.org/10.1016/j.scriptamat.2010.05.027
Publication status	Published - Sept 1 2010

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2010.05.027

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abstract = "Hydrogen trapping in Fe-0.01 mass% C with ultrafine-grained structures produced by high-pressure torsion (HPT) was investigated by thermal desorption spectrometry. Hydrogen trapping in body-centred cubic iron was significantly increased by HPT processing through introduction of lattice defects such as vacancies, dislocations and grain boundaries. Decreasing the density of vacancies, dislocations and low-angle grain boundaries by post-HPT annealing is effective in reducing the trapped hydrogen while the hardness remains enhanced through grain refinement with high-angle boundaries.",

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AU - Mine, Yoji

AU - Tsumagari, Takayuki

AU - Horita, Zenji

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Y1 - 2010/9/1

N2 - Hydrogen trapping in Fe-0.01 mass% C with ultrafine-grained structures produced by high-pressure torsion (HPT) was investigated by thermal desorption spectrometry. Hydrogen trapping in body-centred cubic iron was significantly increased by HPT processing through introduction of lattice defects such as vacancies, dislocations and grain boundaries. Decreasing the density of vacancies, dislocations and low-angle grain boundaries by post-HPT annealing is effective in reducing the trapped hydrogen while the hardness remains enhanced through grain refinement with high-angle boundaries.

AB - Hydrogen trapping in Fe-0.01 mass% C with ultrafine-grained structures produced by high-pressure torsion (HPT) was investigated by thermal desorption spectrometry. Hydrogen trapping in body-centred cubic iron was significantly increased by HPT processing through introduction of lattice defects such as vacancies, dislocations and grain boundaries. Decreasing the density of vacancies, dislocations and low-angle grain boundaries by post-HPT annealing is effective in reducing the trapped hydrogen while the hardness remains enhanced through grain refinement with high-angle boundaries.

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Hydrogen trapping on lattice defects produced by high-pressure torsion in Fe-0.01 mass% C alloy

Abstract

All Science Journal Classification (ASJC) codes

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