書誌事項
- タイトル別名
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- Microstructure and Mechanical Properties of A7075 Alloy with Additional Si Objects Fabricated by Selective Laser Melting
- Selective Laser Melting ニ ヨリ サクセイ シタ Si テンカ A7075 ゾウケイブツ ノ ソシキ ト キカイテキ キョウド
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説明
<p>Recently, the realization of the combination of selective laser melting (SLM) and high-strength aluminium alloys (Al alloys) has been discussed in mainly the aerospace industry. However, there have been several problems for the realization, and the one of fundamental problem is the occurrence of microcracks in high-strength Al alloy objects fabricated by SLM. To solve the problem, some researchers have studied addition of alloying elements to high-strength Al alloy. In this study, we focused on the A7075 alloy with additional five percent Si (A7075+5Si) and investigated the effects of the Si addition on the processability, microstructure and mechanical properties. As a result, it was observed that the addition of Si element inhibited the formation of cracks in the A7075 objects. Our result suggests the high density and crack-free A7075+5Si objects had higher mechanical properties than the case of a conventional Al alloy (AlSi10Mg and AlSi12). However, the T6 heat treatment (After solution treatment, water quenching and artificially ageing) did not increase the mechanical properties of A7075+5Si objects. In order to obtain the A7075+5Si objects with higher strength, it is required that the further studies about suitable heat treatment conditions for A7075+5Si alloy.</p>
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 66 (3), 109-115, 2019-03-15
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
- 1390845713058467456
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- NII論文ID
- 130007614291
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 029581919
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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
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可