Solidification of Fe-15 % Cr-Nb-V-C Hyper-eutectic Alloy.
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- Yamamoto Kaoru
- Graduate School of Engineering, Kyushu University
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- Miyakawa Noboru
- Graduate School of Engineering, Kyushu University
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- Okamura Tomoyuki
- Graduate School of Engineering, Kyushu University [(Present) Toray Industries, Inc.]
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- Hirose Masanori
- Fukuoka Industrial Technology Center
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- Ogi Keisaku
- Graduate School of Engineering, Kyushu University
Bibliographic Information
- Other Title
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- Fe‐15%Cr‐Nb‐V‐C系過共晶合金の凝固
- Fe-15%Cr-Nb-V-C系過共晶合金の凝固
- Fe 15パーセント Cr Nb V C ケイ カキョウショウ ゴウキン ノ ギョウコ
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Abstract
The solidification sequences and the amounts of primary and eutectic carbides were investigated on hyper-eutectic high Cr-Nb-V cast irons containing 3.5 mass %, 4.7 mass % C, 15mass % Cr, 0∼10 mass % Nb and 0∼10 mass % V. Solidification proceeded in the order of primary MC, eutectic γ + MC, and eutectic γ + M7C3 in the lower C cast irons, while primary MC was followed by a peritectic reaction L + MC→M7C3 and a eutectic reaction L→γ + M7C3 in the high C irons. The peritectic M7C3 crystallized into a hexagonal columnar structure just like a primary M7C3. The total amount of carbides increased more or less linearly with the increase in the C content of iron. On the other hand, the amount of MC was increased with the increase in Nb and V contents and barely influenced by the C content. In the iron containing similar levels of Nb and V, Nb rich MC crystallized first and were surrounded by V rich MC which crystallized next.
Journal
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- Journal of Japan Foundry Engineering Society
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Journal of Japan Foundry Engineering Society 73 (2), 93-98, 2001
Japan Foundry Engineering Society
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Details 詳細情報について
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- CRID
- 1390001206508192384
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- NII Article ID
- 10007483547
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- NII Book ID
- AN10514770
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- ISSN
- 21855374
- 13420429
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- NDL BIB ID
- 5675627
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed