Surface Hardening of Ferritic Spheroidal Graphite Cast Iron by Friction Stir Processing
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- Imagawa Koichi
- Joining and Welding Research Institute, Osaka University
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- Fujii Hidetoshi
- Joining and Welding Research Institute, Osaka University
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- Yamaguchi Yasufumi
- Komatsu Ltd.
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- Kiguchi Shoji
- School of Science and Engineering, Kinki University
Bibliographic Information
- Other Title
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- 摩擦攪拌プロセスによるフェライト球状黒鉛鋳鉄の表面硬化
- マサツ カクハン プロセス ニ ヨル フェライト キュウジョウ コクエン チュウテツ ノ ヒョウメン コウカ
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Abstract
A ferritic spheroidal graphite cast iron (FCD450) is difficult to harden using a conventional surface hardening method, because the carbon content in the matrix is very low. In order to solve this problem, the friction stir processing (FSP) was used in this study as a new hardening method of cast irons. The authors have clarified in a previous study that the pearlitic cast iron, such as FC300 and FCD700, can be hardened using the friction stir processing and that there are several advantages, such as a higher hardness and no required post surface machining. In this study, it was clarified that a Vickers hardness of about 800HV is obtained due to the formation of fine martensite even for ferritic spheroidal graphite cast irons, although the optimal process range is much lower than that of the pearlitic cast iron due to the diffusion of carbon in the matrix which is required to obtain a hardness.
Journal
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- Journal of Japan Foundry Engineering Society
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Journal of Japan Foundry Engineering Society 82 (11), 674-679, 2010
Japan Foundry Engineering Society
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Details 詳細情報について
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- CRID
- 1390282681487322880
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- NII Article ID
- 10027507281
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- NII Book ID
- AN10514770
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- ISSN
- 21855374
- 13420429
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- NDL BIB ID
- 10899041
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed