書誌事項
- タイトル別名
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- Microstructures and Mechanical Properties of Al–10%Si–0.4%Mg Fabricated by Selective Laser Melting
- キンゾク フンマツ レーザ セキソウ ゾウケイホウ ニ ヨリ サクセイ シタ Al-10%Si-0.4%Mg ゴウキン ノ ソシキ ト キカイテキ セイシツ
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抄録
In this study, the basic characteristics of Al–10%Si–0.4%Mg alloy fabricated by Selective Laser Melting (SLM) were investigated. First, laser irradiation conditions were optimized for densification by using an SLM machine equipped with a 400 W Yb fiber laser. As a result, SLM specimens with almost 100 % relative density were obtained. Secondly, the microstructures and mechanical properties of the dense specimens were investigated. The ultimate strength (UTS > 450 MPa) and breaking elongation (EL > 10 %) of the as-fabricated SLM specimens were much higher than those of high pressure die casting materials. This is because they had almost 100 % relative density and showed sub-micron order dendrite-cell microstructures. Moreover, the effects of T5/T6 heat treatment on microstructures and mechanical properties were also investigated. The behaviors of heat treatments in the SLM specimens were different from those of cast melting alloys. The EL of the SLM specimens in the T6 condition increased to about 20 % although the UTS decreased.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 61 (11), 531-537, 2014
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206311877248
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- NII論文ID
- 130004705369
- 40020269649
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 025922220
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可