Development of low-cost high-strength beta-type titanium alloys using a metal injection molding

Ken Cho; Mitsuo Niinomi; Masaaki Nakai; Pedro F. Santos; Yoshinori Itoh; Masahiko Ikeda

Development of low-cost high-strength beta-type titanium alloys using a metal injection molding

Ken Cho, Mitsuo Niinomi, Masaaki Nakai, Pedro F. Santos, Yoshinori Itoh, Masahiko Ikeda

Materials Development Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Ti-13Mn was fabricated using a metal injection molding method to develop a new low-cost high-strength β-type titanium alloy. The Vickers hardness, ultimate tensile strength (UTS), and elongation of the as-sintered and solutionized Ti-13Mn are 284 Hv and 279 Hv, 840 MPa and 880 MPa, and 0.9% and 1.2%, respectively. Although the elongation of the as-sintered and solutionized Ti-13Mn is lower than that of aged Ti-6A1-4V (Ti64) ELI, its UTS is the same as that of aged Ti64 ELI. Moreover, after Ti-13Mn being subjected to 90% cold rolling, its Vickers hardness and UTS significantly increased to 460 Hv and 1852 MPa, respectively. The UTS of cold-rolled Ti-13Mn can be considered extremely high among those of β-type titanium alloys, including Ti-15V-3Al-3Sn-3Cr. The increase in the dislocation density, the formation of a deformation-induced ω phase, and the decrease in porosity result in the strengthening of the solutionized Ti-13Mn.

Original language	English
Title of host publication	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Publisher	Association for Iron and Steel Technology, AISTECH
Pages	1551-1558
Number of pages	8
ISBN (Electronic)	9781634397230
Publication status	Published - 2014 Jan 1
Event	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 - Pittsburgh, United States Duration: 2014 Oct 12 → 2014 Oct 16

Publication series

Name	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Volume	3

Other

Other	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Country	United States
City	Pittsburgh
Period	14/10/12 → 14/10/16

Keywords

High-strength Ti alloy
Low-cost Ti alloy
Metal injection molding
β-type Ti alloy

ASJC Scopus subject areas

Energy Engineering and Power Technology
Materials Science(all)

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Cho, K., Niinomi, M., Nakai, M., Santos, P. F., Itoh, Y., & Ikeda, M. (2014). Development of low-cost high-strength beta-type titanium alloys using a metal injection molding. In Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 (pp. 1551-1558). (Materials Science and Technology Conference and Exhibition 2014, MS and T 2014; Vol. 3). Association for Iron and Steel Technology, AISTECH.

Development of low-cost high-strength beta-type titanium alloys using a metal injection molding. / Cho, Ken; Niinomi, Mitsuo; Nakai, Masaaki; Santos, Pedro F.; Itoh, Yoshinori; Ikeda, Masahiko.

Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Association for Iron and Steel Technology, AISTECH, 2014. p. 1551-1558 (Materials Science and Technology Conference and Exhibition 2014, MS and T 2014; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Cho, K, Niinomi, M, Nakai, M, Santos, PF, Itoh, Y & Ikeda, M 2014, Development of low-cost high-strength beta-type titanium alloys using a metal injection molding. in Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Materials Science and Technology Conference and Exhibition 2014, MS and T 2014, vol. 3, Association for Iron and Steel Technology, AISTECH, pp. 1551-1558, Materials Science and Technology Conference and Exhibition 2014, MS and T 2014, Pittsburgh, United States, 14/10/12.

Cho K, Niinomi M, Nakai M, Santos PF, Itoh Y, Ikeda M. Development of low-cost high-strength beta-type titanium alloys using a metal injection molding. In Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Association for Iron and Steel Technology, AISTECH. 2014. p. 1551-1558. (Materials Science and Technology Conference and Exhibition 2014, MS and T 2014).

Cho, Ken ; Niinomi, Mitsuo ; Nakai, Masaaki ; Santos, Pedro F. ; Itoh, Yoshinori ; Ikeda, Masahiko. / Development of low-cost high-strength beta-type titanium alloys using a metal injection molding. Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Association for Iron and Steel Technology, AISTECH, 2014. pp. 1551-1558 (Materials Science and Technology Conference and Exhibition 2014, MS and T 2014).

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abstract = "Ti-13Mn was fabricated using a metal injection molding method to develop a new low-cost high-strength β-type titanium alloy. The Vickers hardness, ultimate tensile strength (UTS), and elongation of the as-sintered and solutionized Ti-13Mn are 284 Hv and 279 Hv, 840 MPa and 880 MPa, and 0.9% and 1.2%, respectively. Although the elongation of the as-sintered and solutionized Ti-13Mn is lower than that of aged Ti-6A1-4V (Ti64) ELI, its UTS is the same as that of aged Ti64 ELI. Moreover, after Ti-13Mn being subjected to 90% cold rolling, its Vickers hardness and UTS significantly increased to 460 Hv and 1852 MPa, respectively. The UTS of cold-rolled Ti-13Mn can be considered extremely high among those of β-type titanium alloys, including Ti-15V-3Al-3Sn-3Cr. The increase in the dislocation density, the formation of a deformation-induced ω phase, and the decrease in porosity result in the strengthening of the solutionized Ti-13Mn.",

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AU - Niinomi, Mitsuo

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AU - Ikeda, Masahiko

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AB - Ti-13Mn was fabricated using a metal injection molding method to develop a new low-cost high-strength β-type titanium alloy. The Vickers hardness, ultimate tensile strength (UTS), and elongation of the as-sintered and solutionized Ti-13Mn are 284 Hv and 279 Hv, 840 MPa and 880 MPa, and 0.9% and 1.2%, respectively. Although the elongation of the as-sintered and solutionized Ti-13Mn is lower than that of aged Ti-6A1-4V (Ti64) ELI, its UTS is the same as that of aged Ti64 ELI. Moreover, after Ti-13Mn being subjected to 90% cold rolling, its Vickers hardness and UTS significantly increased to 460 Hv and 1852 MPa, respectively. The UTS of cold-rolled Ti-13Mn can be considered extremely high among those of β-type titanium alloys, including Ti-15V-3Al-3Sn-3Cr. The increase in the dislocation density, the formation of a deformation-induced ω phase, and the decrease in porosity result in the strengthening of the solutionized Ti-13Mn.

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KW - β-type Ti alloy

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