SiC粒子分散型Al-Mg-Si合金複合材料における中間相析出物に及ぼす粒子体積率の影響 Effect of particle volume fraction on intermediate phase precipitates in SiC particle dispersed Al-Mg-Si alloy composites

この論文にアクセスする

この論文をさがす

著者

抄録

Aging process of Al–1.0 mass%Mg<sub>2</sub>Si alloy composite materials with 4 vol% and 8 vol%SiC particles was investigated by micro-Vickers hardness measurement and transmission electron microscope observation. When SiC particles are dispersed into the Al–Mg–Si alloy, aging time to reach the maximum hardness is shortened at 473 K. The over-aged composite material with 4 vol%SiC particles includes various kinds of metastable phase precipitates; namely β' phase, the TYPE–B and TYPE–C precipitates of which crystal structures are different to each other. Fractions of these three kinds of precipitates in the composites are the same as in the mother alloy containing 0.2 mass% excess Si. The composite material with 8 vol%SiC particles contains the TYPE–A, TYPE–B and TYPE–C precipitates, but is free from β' phase precipitates. The existence of those precipitates has correspondingly been observed in the mother alloy containing 0.4 mass% excess Si. The estimation that the oxide (SiO<sub>2</sub>) layer must have formed on the surface of each SiC particle with the maximum thickness of about 17 nm can be deduced from the assumption that a considerable portion of excess Si originates from the oxide layer on the surface of SiC particles in the composite materials.

収録刊行物

  • 軽金属

    軽金属 47(8), 421-426, 1997-08-30

    The Japan Institute of Light Metals

参考文献:  14件中 1-14件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10003795765
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4285227
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ