Fabrication of porous Al-Cu alloys with aligned unidirectional pores by dipping pipes in melt and semi-solid slurry

Tatsuro Hayashida, Shinsuke Suzuki, Junichi Ichikawa, Ryuji Toyoyama

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    Aligned seven pure aluminum pipes with internal diameter of 3mm and wall thickness of 0.5mm were dipped into Al4 mass% Cu melt and semi-solid slurry. The specimen was cooled and solidified after holding times 0, 15 and 30 s. The pipes were bonded to the base metal with maintaining the shape of pipes by using the semi-solid base metal. An increase in solid fraction of the base metal is effective to avoid thermal damage of the pipes. Penetration of Cu into the pipe was found by EPMA analyses. Diffusion of Cu from the base metal to grain boundary of pipes decreases the liquidus temperature of ¡ phase in the vicinity of the grain boundary of the pipes. As a result, the ¡ phase melted partly and the pipes were bonded to the pipes with the base metal metallurgically. Porous AlCu alloys with aligned unidirectional pores with porosity of 26% are fabricated by this method.

    Original languageEnglish
    Pages (from-to)2102-2108
    Number of pages7
    JournalMaterials Transactions
    Volume54
    Issue number11
    DOIs
    Publication statusPublished - 2013

    Fingerprint

    dipping
    Pipe
    porosity
    Fabrication
    fabrication
    Metals
    metals
    Grain boundaries
    Aluminum pipe
    grain boundaries
    Electron probe microanalysis
    liquidus
    Porosity
    penetration
    damage
    aluminum

    Keywords

    • Aluminum
    • Aluminumcopper alloys
    • Casting
    • Porous metals
    • Semi-solid slurry
    • Unidirectional pore

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanical Engineering
    • Mechanics of Materials

    Cite this

    Fabrication of porous Al-Cu alloys with aligned unidirectional pores by dipping pipes in melt and semi-solid slurry. / Hayashida, Tatsuro; Suzuki, Shinsuke; Ichikawa, Junichi; Toyoyama, Ryuji.

    In: Materials Transactions, Vol. 54, No. 11, 2013, p. 2102-2108.

    Research output: Contribution to journalArticle

    Hayashida, Tatsuro ; Suzuki, Shinsuke ; Ichikawa, Junichi ; Toyoyama, Ryuji. / Fabrication of porous Al-Cu alloys with aligned unidirectional pores by dipping pipes in melt and semi-solid slurry. In: Materials Transactions. 2013 ; Vol. 54, No. 11. pp. 2102-2108.
    @article{704abf612534444598a3d7e7534312e6,
    title = "Fabrication of porous Al-Cu alloys with aligned unidirectional pores by dipping pipes in melt and semi-solid slurry",
    abstract = "Aligned seven pure aluminum pipes with internal diameter of 3mm and wall thickness of 0.5mm were dipped into Al4 mass{\%} Cu melt and semi-solid slurry. The specimen was cooled and solidified after holding times 0, 15 and 30 s. The pipes were bonded to the base metal with maintaining the shape of pipes by using the semi-solid base metal. An increase in solid fraction of the base metal is effective to avoid thermal damage of the pipes. Penetration of Cu into the pipe was found by EPMA analyses. Diffusion of Cu from the base metal to grain boundary of pipes decreases the liquidus temperature of ¡ phase in the vicinity of the grain boundary of the pipes. As a result, the ¡ phase melted partly and the pipes were bonded to the pipes with the base metal metallurgically. Porous AlCu alloys with aligned unidirectional pores with porosity of 26{\%} are fabricated by this method.",
    keywords = "Aluminum, Aluminumcopper alloys, Casting, Porous metals, Semi-solid slurry, Unidirectional pore",
    author = "Tatsuro Hayashida and Shinsuke Suzuki and Junichi Ichikawa and Ryuji Toyoyama",
    year = "2013",
    doi = "10.2320/matertrans.L-M2013828",
    language = "English",
    volume = "54",
    pages = "2102--2108",
    journal = "Materials Transactions",
    issn = "1345-9678",
    publisher = "Japan Institute of Metals (JIM)",
    number = "11",

    }

    TY - JOUR

    T1 - Fabrication of porous Al-Cu alloys with aligned unidirectional pores by dipping pipes in melt and semi-solid slurry

    AU - Hayashida, Tatsuro

    AU - Suzuki, Shinsuke

    AU - Ichikawa, Junichi

    AU - Toyoyama, Ryuji

    PY - 2013

    Y1 - 2013

    N2 - Aligned seven pure aluminum pipes with internal diameter of 3mm and wall thickness of 0.5mm were dipped into Al4 mass% Cu melt and semi-solid slurry. The specimen was cooled and solidified after holding times 0, 15 and 30 s. The pipes were bonded to the base metal with maintaining the shape of pipes by using the semi-solid base metal. An increase in solid fraction of the base metal is effective to avoid thermal damage of the pipes. Penetration of Cu into the pipe was found by EPMA analyses. Diffusion of Cu from the base metal to grain boundary of pipes decreases the liquidus temperature of ¡ phase in the vicinity of the grain boundary of the pipes. As a result, the ¡ phase melted partly and the pipes were bonded to the pipes with the base metal metallurgically. Porous AlCu alloys with aligned unidirectional pores with porosity of 26% are fabricated by this method.

    AB - Aligned seven pure aluminum pipes with internal diameter of 3mm and wall thickness of 0.5mm were dipped into Al4 mass% Cu melt and semi-solid slurry. The specimen was cooled and solidified after holding times 0, 15 and 30 s. The pipes were bonded to the base metal with maintaining the shape of pipes by using the semi-solid base metal. An increase in solid fraction of the base metal is effective to avoid thermal damage of the pipes. Penetration of Cu into the pipe was found by EPMA analyses. Diffusion of Cu from the base metal to grain boundary of pipes decreases the liquidus temperature of ¡ phase in the vicinity of the grain boundary of the pipes. As a result, the ¡ phase melted partly and the pipes were bonded to the pipes with the base metal metallurgically. Porous AlCu alloys with aligned unidirectional pores with porosity of 26% are fabricated by this method.

    KW - Aluminum

    KW - Aluminumcopper alloys

    KW - Casting

    KW - Porous metals

    KW - Semi-solid slurry

    KW - Unidirectional pore

    UR - http://www.scopus.com/inward/record.url?scp=84887468807&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84887468807&partnerID=8YFLogxK

    U2 - 10.2320/matertrans.L-M2013828

    DO - 10.2320/matertrans.L-M2013828

    M3 - Article

    VL - 54

    SP - 2102

    EP - 2108

    JO - Materials Transactions

    JF - Materials Transactions

    SN - 1345-9678

    IS - 11

    ER -