ほう酸アルミニウムウィスカを含むA6061アルミニウム合金基複合材料における界面構造

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タイトル別名
  • Interface Structure in A6061 Aluminium Alloy Matrix Composite Reinforced with Aluminium Borate Whiskers
  • ホウサン アルミニウム ウィスカ オ フクム A6061 アルミニウム ゴウキンキ フクゴウ ザイリョウ ニ オケル カイメン コウゾウ

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説明

A6061 aluminium alloy matrix composites reinforced with aluminium borate whiskers were manufactured using squeeze casting. The interface between the whisker and matrix was observed using high resolution electron microscopy. The aluminium borate whisker and magnesium in the A6061 aluminium alloy interacted during casting and the spinel (MgAl2O4) which nucleated at the interface grew during heat treatment. The whisker/spinel interface had coherency, but the whisker/matrix interface had none. Many lattice defects were observed in the spinel, and were probably produced by misfits at the whisker/spinel interface. Multi-slice simulation indicated that stacking faults are one of the defects.

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