Electron beam melting of boron-modified Ti–2Al–2Sn–4Zr–2Mo–0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures

Tadashi Fujieda; Yujie Cui; Kenta Aoyagi; Yuichiro Koizumi; Akihiko Chiba

doi:10.1016/j.mtla.2018.10.013

Electron beam melting of boron-modified Ti–2Al–2Sn–4Zr–2Mo–0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures

Tadashi Fujieda, Yujie Cui, Kenta Aoyagi, Yuichiro Koizumi, Akihiko Chiba

Materials Processing and Characterization Division

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

12 Citations (Scopus)

Abstract

The effectiveness of applying an electron beam melting (EBM) additive manufacturing process to Ti–6Al–2Sn–4Zr–2Mo–0.1Si–1B alloy by comparing the EBM alloy with a corresponding wrought alloy was demonstrated. The EBM alloys exhibited microstructures that had much finer whisker-like TiB precipitates with nanometer width dispersed more uniformly than those of the wrought alloy formed due to the rapid solidification process. The EBM alloys had higher tensile strength than the wrought alloy at elevated temperatures up to 873 K. Furthermore, the oxidation resistance at 1073 K of the EBM alloys was significantly improved because of the dense oxide film formation.

Original language	English
Pages (from-to)	367-372
Number of pages	6
Journal	Materialia
Volume	4
DOIs	https://doi.org/10.1016/j.mtla.2018.10.013
Publication status	Published - 2018 Dec

Keywords

Electron beam melting (EBM)
Mechanical properties
Oxidation resistance
Ti alloy
TiB

ASJC Scopus subject areas

Materials Science(all)

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10.1016/j.mtla.2018.10.013

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title = "Electron beam melting of boron-modified Ti–2Al–2Sn–4Zr–2Mo–0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures",

abstract = "The effectiveness of applying an electron beam melting (EBM) additive manufacturing process to Ti–6Al–2Sn–4Zr–2Mo–0.1Si–1B alloy by comparing the EBM alloy with a corresponding wrought alloy was demonstrated. The EBM alloys exhibited microstructures that had much finer whisker-like TiB precipitates with nanometer width dispersed more uniformly than those of the wrought alloy formed due to the rapid solidification process. The EBM alloys had higher tensile strength than the wrought alloy at elevated temperatures up to 873 K. Furthermore, the oxidation resistance at 1073 K of the EBM alloys was significantly improved because of the dense oxide film formation.",

keywords = "Electron beam melting (EBM), Mechanical properties, Oxidation resistance, Ti alloy, TiB",

author = "Tadashi Fujieda and Yujie Cui and Kenta Aoyagi and Yuichiro Koizumi and Akihiko Chiba",

note = "Funding Information: This study was supported by the “Nanotechnology Platform” Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Publisher Copyright: {\textcopyright} 2018 Acta Materialia Inc.",

year = "2018",

month = dec,

doi = "10.1016/j.mtla.2018.10.013",

language = "English",

volume = "4",

pages = "367--372",

journal = "Materialia",

issn = "2589-1529",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Electron beam melting of boron-modified Ti–2Al–2Sn–4Zr–2Mo–0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures

AU - Fujieda, Tadashi

AU - Cui, Yujie

AU - Aoyagi, Kenta

AU - Koizumi, Yuichiro

AU - Chiba, Akihiko

N1 - Funding Information: This study was supported by the “Nanotechnology Platform” Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Publisher Copyright: © 2018 Acta Materialia Inc.

PY - 2018/12

Y1 - 2018/12

N2 - The effectiveness of applying an electron beam melting (EBM) additive manufacturing process to Ti–6Al–2Sn–4Zr–2Mo–0.1Si–1B alloy by comparing the EBM alloy with a corresponding wrought alloy was demonstrated. The EBM alloys exhibited microstructures that had much finer whisker-like TiB precipitates with nanometer width dispersed more uniformly than those of the wrought alloy formed due to the rapid solidification process. The EBM alloys had higher tensile strength than the wrought alloy at elevated temperatures up to 873 K. Furthermore, the oxidation resistance at 1073 K of the EBM alloys was significantly improved because of the dense oxide film formation.

AB - The effectiveness of applying an electron beam melting (EBM) additive manufacturing process to Ti–6Al–2Sn–4Zr–2Mo–0.1Si–1B alloy by comparing the EBM alloy with a corresponding wrought alloy was demonstrated. The EBM alloys exhibited microstructures that had much finer whisker-like TiB precipitates with nanometer width dispersed more uniformly than those of the wrought alloy formed due to the rapid solidification process. The EBM alloys had higher tensile strength than the wrought alloy at elevated temperatures up to 873 K. Furthermore, the oxidation resistance at 1073 K of the EBM alloys was significantly improved because of the dense oxide film formation.

KW - Electron beam melting (EBM)

KW - Mechanical properties

KW - Oxidation resistance

KW - Ti alloy

KW - TiB

UR - http://www.scopus.com/inward/record.url?scp=85061080300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061080300&partnerID=8YFLogxK

U2 - 10.1016/j.mtla.2018.10.013

DO - 10.1016/j.mtla.2018.10.013

M3 - Letter

AN - SCOPUS:85061080300

SN - 2589-1529

VL - 4

SP - 367

EP - 372

JO - Materialia

JF - Materialia

ER -

Electron beam melting of boron-modified Ti–2Al–2Sn–4Zr–2Mo–0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures

Abstract

Keywords

ASJC Scopus subject areas

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