６０６３アルミニウム合金押出材のピックアップ欠陥発生機構

• 箕田 正

  住友軽金属工業（株）研究開発センター

• 早川 秀哉

  住友軽金属工業（株）

• 吉田 英雄

  住友軽金属工業（株）研究開発センター

書誌事項

タイトル別名

• A mechanism of pick-up formation on 6063 aluminum alloy extrusions.
• 6063 アルミニウム ゴウキン オシダシザイ ノ ピックアップ ケッカン ハッセイ キコウ

抄録

A mechanism of pick-up formation on the surface of extrusions was discussed in this work. First, a quantitative evaluation method was established to determine the transformation ratio of α–AlFeSi (α ratio) from β–AlFeSi in 6063 aluminum alloy billets. By applying the integrated intensity technique of X-ray diffraction peak to study the effect of the α ratio on the pick-up formation, it became clear that the segregation zones in the billet surface affected the pick-up formation. When the α ratio at the billet surface was below 10%, heavy pick-up were observed on the extruded surface even though the α ratio was 100% at the billet center. In the surface of low α ratio billets, Mg₂Si compounds existed around β–AlFeSi particles and it was observed that local melting occurred around them at a temperature between 570 and 580°C. Furthermore, pick-up defects were not found with low magnesium content billets although they showed the α ratio below 10% at the surface. Thus it was considered that pick-up defects occurred due to the peritectic reaction of Al, Mg₂Si and β–AlFeSi at 576°C.

収録刊行物

• 軽金属

  軽金属 49 (6), 253-257, 1999

  一般社団法人 軽金属学会

キーワード

• Al–Mg–Si
• AlFeSi
• Mg₂Si
• pick-up
• α ratio

詳細情報

• CRID: 1390001206336183680
• NII論文ID: 10002666515
• NII論文ID: 10005136205
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.49.253
• COI: 1:CAS:528:DyaK1MXktF2gtr4%3D
• ISSN: 18808018
• ISSN: 04515994
• ISSN: http://id.crossref.org/issn/04515994
• NDL書誌ID: 4775055
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4775055
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可