Submicron lamellar porous structure formed by selective dissolution of Ti-Al alloy

Dai Xiu Wei; Yuichiro Koizumi; Yunping Li; Kenta Yamanak; Akihiko Chiba

doi:10.1016/j.matdes.2016.02.096

Submicron lamellar porous structure formed by selective dissolution of Ti-Al alloy

Dai Xiu Wei, Yuichiro Koizumi, Yunping Li, Kenta Yamanak, Akihiko Chiba

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

24 Citations (Scopus)

Abstract

We created high-aspect-ratio sub-micron-sized lamellar porous structure by simple anodic selective dissolution of lamellar Ti-Al alloy in NaCl aqueous solution. The geometries of lamellar structures, which determined those of lamellar porous structure, were controlled by hot forging and subsequent ageing treatment before dissolution process. Although the changes in microstructure affected the selective dissolution behaviors, γ-TiAl phase could be dissolved selectively. As a result, the average sizes of unidirectional units of lamellar pores could be controlled in the range from to 25 μm to 500 μm. The pitches of the lamellar pores were controlled in the wide range from below 100 nm to over 1 μm.

Original language	English
Pages (from-to)	1-11
Number of pages	11
Journal	Materials and Design
Volume	98
DOIs	https://doi.org/10.1016/j.matdes.2016.02.096
Publication status	Published - 2016 May 15

Keywords

Aluminum
Anodic dissolution
SEM
Titanium
XPS

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10.1016/j.matdes.2016.02.096

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title = "Submicron lamellar porous structure formed by selective dissolution of Ti-Al alloy",

abstract = "We created high-aspect-ratio sub-micron-sized lamellar porous structure by simple anodic selective dissolution of lamellar Ti-Al alloy in NaCl aqueous solution. The geometries of lamellar structures, which determined those of lamellar porous structure, were controlled by hot forging and subsequent ageing treatment before dissolution process. Although the changes in microstructure affected the selective dissolution behaviors, γ-TiAl phase could be dissolved selectively. As a result, the average sizes of unidirectional units of lamellar pores could be controlled in the range from to 25 μm to 500 μm. The pitches of the lamellar pores were controlled in the wide range from below 100 nm to over 1 μm.",

keywords = "Aluminum, Anodic dissolution, SEM, Titanium, XPS",

author = "Wei, {Dai Xiu} and Yuichiro Koizumi and Yunping Li and Kenta Yamanak and Akihiko Chiba",

note = "Funding Information: This work was supported by a Grant-in-Aid for Scientific Research Development from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan (Proposal No. 25630317 ). A part of this work was performed under the inter-university cooperative research program (Proposal No. 14G0411 ) of the Cooperative Research and Development Center for Advanced Materials, Institute for Materials Research, Tohoku University . A part of this work was supported by the Amada Foundation (Proposal No. AF-2014024) . Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = may,

day = "15",

doi = "10.1016/j.matdes.2016.02.096",

language = "English",

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T1 - Submicron lamellar porous structure formed by selective dissolution of Ti-Al alloy

AU - Wei, Dai Xiu

AU - Koizumi, Yuichiro

AU - Li, Yunping

AU - Yamanak, Kenta

AU - Chiba, Akihiko

N1 - Funding Information: This work was supported by a Grant-in-Aid for Scientific Research Development from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan (Proposal No. 25630317 ). A part of this work was performed under the inter-university cooperative research program (Proposal No. 14G0411 ) of the Cooperative Research and Development Center for Advanced Materials, Institute for Materials Research, Tohoku University . A part of this work was supported by the Amada Foundation (Proposal No. AF-2014024) . Publisher Copyright: © 2016 Elsevier Ltd.

PY - 2016/5/15

Y1 - 2016/5/15

N2 - We created high-aspect-ratio sub-micron-sized lamellar porous structure by simple anodic selective dissolution of lamellar Ti-Al alloy in NaCl aqueous solution. The geometries of lamellar structures, which determined those of lamellar porous structure, were controlled by hot forging and subsequent ageing treatment before dissolution process. Although the changes in microstructure affected the selective dissolution behaviors, γ-TiAl phase could be dissolved selectively. As a result, the average sizes of unidirectional units of lamellar pores could be controlled in the range from to 25 μm to 500 μm. The pitches of the lamellar pores were controlled in the wide range from below 100 nm to over 1 μm.

AB - We created high-aspect-ratio sub-micron-sized lamellar porous structure by simple anodic selective dissolution of lamellar Ti-Al alloy in NaCl aqueous solution. The geometries of lamellar structures, which determined those of lamellar porous structure, were controlled by hot forging and subsequent ageing treatment before dissolution process. Although the changes in microstructure affected the selective dissolution behaviors, γ-TiAl phase could be dissolved selectively. As a result, the average sizes of unidirectional units of lamellar pores could be controlled in the range from to 25 μm to 500 μm. The pitches of the lamellar pores were controlled in the wide range from below 100 nm to over 1 μm.

KW - Aluminum

KW - Anodic dissolution

KW - SEM

KW - Titanium

KW - XPS

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DO - 10.1016/j.matdes.2016.02.096

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VL - 98

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JO - Materials and Design

JF - Materials and Design

ER -

Submicron lamellar porous structure formed by selective dissolution of Ti-Al alloy

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Keywords

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