Microstructure of Mg–Zn Matrix Composite Reinforced with Nano-SiC Prepared by Thixomolding
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- Rogal Łukasz
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences
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- Bobrowski Piotr
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences
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- Stan-Głowińska Katarzyna
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences
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- Szlezynger Maciej
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences
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- Lityńska-Dobrzyńska Lidia
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences
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<p>Thixomolding technology was successfully used to produce Mg–5 mass% Zn matrix composites reinforced with nano-SiC. The composites containing 5 mass% of SiC nano-particles were fabricated under pure Ar or Ar+CO2 atmosphere. Microstructure characterization has been carried out by scanning and transmission electron microscopy methods. It was found that regardless of the gas used, the composites consisted of unmelted globular α(Mg) grains surrounded by small areas of a magnesium solid solution formed directly from liquid and a mixture of SiC and MgO. Reaction of CO2 with liquid alloy during process leads to the in-situ formation of MgO nano-particles, which results in an increase in the amount of oxide particles and refinement of the microstructure compared to the composite produced in pure Ar. These microstructure changes increased the hardness to 70 HV.</p>
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 60 (5), 704-707, 2019-05-01
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
- 1390282763111232000
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- NII論文ID
- 130007636583
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 029658287
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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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