コールドクルーシブル溶解したアルミニウム合金鋳物の引張特性

• 小川 俊文

  福岡県工業技術センター機械電子研究所

• 春山 繁之

  福岡県工業技術センター機械電子研究所

• 貝田 博英

  福岡県工業技術センター機械電子研究所

• 上西 研

  山口大学工学部機械工学科

• 関根 務

  山口大学工学部機械工学科

• 森田 茂隆

  日立金属株式会社素材研究所

書誌事項

タイトル別名

• Tensile Properties of Aluminium Alloy Casting Melted using a Cold-Crucible Furnace
• コールドクルーシブル ヨウカイ シタ アルミニウム ゴウキン イモノ ノ ヒッパリ トクセイ

抄録

Although many investigations on the mechanical properties of aluminum alloy castings have been performed, there have been few investigations that make positively good use of the effect of impurities-reduction. In this study, the influence of impurities on the tensile properties of aluminum alloy casting has been investigated by using aluminum alloy castings of different purity.<BR>Al-Si-Mg alloy castings were melted by cold-crucible furnace using the commercial high-purity metals. The chemical composition of the melted aluminum alloy casting was same as that of JIS AC4CH. The melted aluminum alloy castings have no strontium modification. Solution treatment and age hardening treatment of the ingot was performed in atmosphere. After the heated treatment, the test pieces for tensile test ware made by machine. Quasi-static and impact tensile test were performed in atmosphere at room temperature. The usual AC4CH-T6 which has strontium modification was used for comparative material.<BR>In both cases of quasi-static and impact tensile tests, the tensile strength of Al-Si-Mg alloy casting melted by cold-crucible furnace was lower than that of usual Al-Si-Mg alloy casting by about some percents and the elongation of Al-Si-Mg alloy casting melted by cold-crucible furnace was bigger than that of usual Al-Si-Mg alloy casting by more than one and half times. Because there was very little difference in dendrite arm spacing and size, shape, distribution of eutectic silicon between the Al-Si-Mg alloy castings used in this experiment, it is expected that the impurities-reduction is very effective to improve the tensile properties of aluminum alloy casting (AC4CH) from these results.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 67 (9), 452-455, 2003

  公益社団法人 日本金属学会

キーワード

• aluminum alloy casting
• cold-crucible furnace
• impurity
• modification
• tensile property
• quasi-static tensile test
• impact tensile test

詳細情報

• CRID: 1390001206489987584
• NII論文ID: 10012461322
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.67.9_452
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 6715835
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6715835
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/67/9/67_9_452/_pdf
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