Strengthening Mechanisms of P/M Extruded Titanium Materials with Additive Hydrogen
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- MIMOTO Takanori
- Dept. Mechanical Engineering, Osaka University,
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- LI Shufeng
- Joining and Welding Research Institute, Osaka University
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- UMEDA Junko
- Joining and Welding Research Institute, Osaka University
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- KONDOH Katsuyoshi
- Joining and Welding Research Institute, Osaka University
Bibliographic Information
- Other Title
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- 水素によるチタン焼結押出材の高強度発現機構
- スイソ ニ ヨル チタン ショウケツ オシダシザイ ノ コウキョウド ハツゲン キコウ
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Abstract
ABSTRACT<BR>TiH2 raw powders were directly consolidated by cold pressing, sintering and hot extrusion to fabricate pure Ti materials. The residual hydrogen content depended on the sintering temperature, and showed a significant effect on α/β phase transformation during hot extrusion. When 0.33 mass% hydrogen was contained in the sintered compact, α→β phase transformation occurred completely at extrusion temperature of 1073 K, and resulted in the formation of <0001>α texture of the extruded Ti material. This texture was completely different from that of the conventional extruded Ti materials (<10 – 10>α texture) with very few contents of hydrogen. The former indicated extremely high tensile strength (σ) of 959 MPa and enough elongation (δ) of 27.6 % compared to P/M extruded pure Ti materials with σ = 634 MPa and δ = 29.9 %.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 60 (11), 467-474, 2013
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390282681288141952
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- NII Article ID
- 130003393292
- 40019891279
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- NII Book ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BC3sXhvV2qtL7J
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 025050224
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed