Mechanical and Damping Properties of Fullerene-Dispersed AZ91 Magnesium Alloy Composites Processed by a Powder Metallurgy Route
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- Watanabe Hiroyuki
- Osaka Municipal Technical Research Institute
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- Sugioka Masami
- Osaka Municipal Technical Research Institute
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- Fukusumi Masao
- Osaka Municipal Technical Research Institute
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- Ishikawa Koichi
- Osaka Municipal Technical Research Institute
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- Suzuki Mitsuo
- Research & Development Center, Frontier Carbon Corporation
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- Shimizu Toru
- Osaka Branch Office, Mitsubishi Chemical Corporation
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The microstructures and mechanical properties of fullerene powder dispersed AZ91 magnesium alloy composites were examined. The AZ91 with 0, 1 and 5 mass% fullerene additions were produced by extruding a mixture of AZ91 machined chips and fullerene powder. The matrix grains of the extruded materials were equiaxed, and the size was ∼5 μm irrespective of the fullerene content. The agglomerated fullerene powder was aligned parallel to the extrusion direction in the composites. The addition of 1 mass% fullerene had little effect on the elastic moduli, tensile strength and ductility, whereas the addition of 5 mass% fullerene slightly decreased them. A comparison between the tensile properties of the present composites and those of AZ91 alloys processed by various methods was also made. The damping capacity increased steeply by the fullerene addition. The effectiveness of the fullerene addition for the enhancement of the damping capacity of metallic alloys was verified. A good combination of damping capacity, elastic moduli, strength and ductility was attained in the present composites.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 47 (4), 999-1007, 2006
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204250332800
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- NII論文ID
- 130004453145
- 10017412356
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 7886711
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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