Fabrication of Ti-6Al-7Nb alloys by metal injection molding

Yoshinori Ltoh; Hideshi Miura; Kenji Sato; Mitsuo Niinomi

doi:10.4028/www.scientific.net/MSF.534-536.357

Fabrication of Ti-6Al-7Nb alloys by metal injection molding

Yoshinori Ltoh, Hideshi Miura, Kenji Sato, Mitsuo Niinomi

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

14 Citations (Scopus)

Abstract

The metal injection molding process was applied to produce Ti-6Al-7Nb alloys using 3 types of mixed powders. The first is a mixture of Ti and Al-Nb pre-alloyed powders, the second is a mixture of Ti, Ti-Al alloy and Nb powders, and the third is a mixture of elemental powders of Ti, Al and Nb. The sintered compacts using the first and second powders showed higher density and mechanical properties than the compacts using the third powder which showed many large pores formed due to the dissolution of Al particles during the sintering steps. Eventually, the compacts using a mixture of Ti+Al-Nb or Ti+Ti-Al+Nb powders showed tensile strength of above 800MPa and elongation of above 10%, which are similar to the properties of wrought materials.

Original language	English
Title of host publication	Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
Publisher	Trans Tech Publications Ltd
Pages	357-360
Number of pages	4
Edition	PART 1
ISBN (Print)	0878494197, 9780878494194
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.534-536.357
Publication status	Published - 2007
Externally published	Yes
Event	2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of Duration: 2006 Sept 24 → 2006 Sept 28

Publication series

Name	Materials Science Forum
Number	PART 1
Volume	534-536
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Other

Other	2006 Powder Metallurgy World Congress and Exhibition, PM 2006
Country/Territory	Korea, Republic of
City	Busan
Period	06/9/24 → 06/9/28

Keywords

Mechanical properties
Metal injection molding
Mixed powder
Sintering condition
Ti-6Al-7Nb

ASJC Scopus subject areas

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

Access to Document

10.4028/www.scientific.net/MSF.534-536.357

Cite this

Ltoh, Y., Miura, H., Sato, K., & Niinomi, M. (2007). Fabrication of Ti-6Al-7Nb alloys by metal injection molding. In Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006) (PART 1 ed., pp. 357-360). (Materials Science Forum; Vol. 534-536, No. PART 1). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.534-536.357

Fabrication of Ti-6Al-7Nb alloys by metal injection molding. / Ltoh, Yoshinori; Miura, Hideshi; Sato, Kenji et al.

Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006). PART 1. ed. Trans Tech Publications Ltd, 2007. p. 357-360 (Materials Science Forum; Vol. 534-536, No. PART 1).

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

Ltoh, Y, Miura, H, Sato, K & Niinomi, M 2007, Fabrication of Ti-6Al-7Nb alloys by metal injection molding. in Progress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006). PART 1 edn, Materials Science Forum, no. PART 1, vol. 534-536, Trans Tech Publications Ltd, pp. 357-360, 2006 Powder Metallurgy World Congress and Exhibition, PM 2006, Busan, Korea, Republic of, 06/9/24. https://doi.org/10.4028/www.scientific.net/MSF.534-536.357

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abstract = "The metal injection molding process was applied to produce Ti-6Al-7Nb alloys using 3 types of mixed powders. The first is a mixture of Ti and Al-Nb pre-alloyed powders, the second is a mixture of Ti, Ti-Al alloy and Nb powders, and the third is a mixture of elemental powders of Ti, Al and Nb. The sintered compacts using the first and second powders showed higher density and mechanical properties than the compacts using the third powder which showed many large pores formed due to the dissolution of Al particles during the sintering steps. Eventually, the compacts using a mixture of Ti+Al-Nb or Ti+Ti-Al+Nb powders showed tensile strength of above 800MPa and elongation of above 10%, which are similar to the properties of wrought materials.",

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AB - The metal injection molding process was applied to produce Ti-6Al-7Nb alloys using 3 types of mixed powders. The first is a mixture of Ti and Al-Nb pre-alloyed powders, the second is a mixture of Ti, Ti-Al alloy and Nb powders, and the third is a mixture of elemental powders of Ti, Al and Nb. The sintered compacts using the first and second powders showed higher density and mechanical properties than the compacts using the third powder which showed many large pores formed due to the dissolution of Al particles during the sintering steps. Eventually, the compacts using a mixture of Ti+Al-Nb or Ti+Ti-Al+Nb powders showed tensile strength of above 800MPa and elongation of above 10%, which are similar to the properties of wrought materials.

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Fabrication of Ti-6Al-7Nb alloys by metal injection molding

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