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- 斎藤 卓
- (株)豊田中央研究所
書誌事項
- タイトル別名
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- High Modulus Steel Produced by Powder Metallurgy Process.
- フンマツ ヤキン オ リヨウシタ コウ ゴウセイ コウ
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説明
A new TiB2 particle reinforced ferritic steel with Young's modulus as high as 300GPa has been produced through a powder metallurgy process. This paper discusses the mechanism for providing high performance of the developed material. The phase equilibrium between TiB2 and Fe-Cr-Ti ferritic phases was determined by the CALPHAD method. Based on its thermodynamic stability, which is responsible for maintaining its own high Young's modulus of 540GPa and low density of 4.53g/cc in ferritic matrix, TiB2 particles have been proved to be the best reinforcement for improving isotropic specific Young's modulus of steels. The process designed for the application of the developed material involves power compaction, sintering, and hot forging. Hot working for the material had favorable effects not only on attaining its full densification but also on improving homogeneity of the TiB2 particle dispersion. The Young's modulus of the material agreed exactly with the theoretical one predicted by the non linear law of mixture and the specific Young's modulus could be attained to the double as high as that of conventional steel. The tensile and fatigue strength, and wear resistance were also fairly improved with increase of TiB2 particle dispersion.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 45 (5), 399-404, 1998
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390282681285215232
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- NII論文ID
- 10002015541
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 4481792
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可