Mechanical Properties and Corrosion Resistances of P/M Two-phase Stainless Steels with Silicon.
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- Kamada Koichi
- Iwate Industrial Research Institute
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- Nakamura Mitsuru
- Fac. Eng., Iwate University
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- Yoshida Toshihiro
- Iwate Industrial Research Institute
Bibliographic Information
- Other Title
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- 酸化物超伝導体の合成と特性 シリコンを含むP/M二相ステンレス鋼の機械的性質と耐食性
- シリコン オ フクム PM 2ソウ ステンレス コウ ノ キカイテキ セイシツ
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Abstract
Influence of the addition of silicon on mechanical properties and corrosion resistances of P/M austenitic stainless steels was investigated by means of microstructual examinations, calorimetric analysis and X-ray analysis. Silicon addition to P/M austenitic stainless steels makes the sintering in the duplex structure of austenite(γ) and ferrite(α) possible by the liquid phase sintering with a eutectic liquid. For example, addition of 4mass% Si results in the formation of about 40vol% of ferrite. Tensile strength of sintered steels increases with increased silicon content, and the maximum strength (940MPa) was obtained in the steel with 4mass%Si which was sintered for 3.6ks at 1623K. On the other hand, elongation of sintered steels tends to increase with rising sintering temperature. The maximum elongation (47.5%) was obtained in the steel with 2mass%Si which was sintered for 3.6ks at 1673K. The sintered steel with 2mass%Si was found to have excellent corrosion resistance in a boiling solution of 65% HNO3 : The corrosion rate of the steel was very small in comparison with the sintered SUS304L steel, but it was three times larger than that of a SUS304L steel produced by ingot metallurgy. However, further addition of silicon causes a decline in corrosion resistance probably due to a decrease in the green density.
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 43 (2), 236-240, 1996
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390001206307515520
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- NII Article ID
- 10002011404
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 3926726
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed