Ａｌ‐１．０％Ｍｇ２Ｓｉ‐０．３４％Ｓｉ合金の粒界近傍における局部変形に対する時効時間の影響

DOI Web Site 被引用文献1件 参考文献14件

書誌事項

タイトル別名
  • Effect of aging time on local deformation near grain boundaries in Al-1.0 mass%Mg2Si-0.34 mass%Si alloys.
  • Al-1.0%Mg2Si-0.34%Si合金の粒界近傍における局部変形に対する時効時間の影響
  • Al 1.0パーセント Mg2Si 0.34パーセント Si ゴウキン ノ リ

この論文をさがす

抄録

Al–1.0 mass%Mg2Si–0.34 mass%Si alloy specimens which had been aged at 423 K for various times were tensile tested at room temperature. Changes in local deformation near grain boundaries with aging time were investigated by scanning tunneling microscopy. When a little loss in elongation occurred at early stage of aging, the folds generated at the grain triple junction. But they were very ambiguous and did not develop with increasing amount of deformation. The fold formations were difficult to be explained by the maximum resolved shear stress on a grain boundary plane (Fmax). If the elongation appreciably decreased and intergranular fracture began to occur with the progress of aging, the folds developed and became more clear. The fold formations at this stage could be explained by the Fmax in many cases. Frequencies of fold formations increased with the aging time over a range of under-aged to peak-aged condition, and this correlated approximately to the decrease in elongation. Even if the elongation considerably recovered in the specimen which had been aged at 473 K up to over-aged condition, the frequency of fold formation was similar to that of the peak-aged condition. In this case, however, two types of folds which had developed largely or had developed scarcely with the progress of deformation were observed and the frequency of the former ones decreased to about a half of the all folds.

収録刊行物

  • 軽金属

    軽金属 48 (4), 179-184, 1998

    一般社団法人 軽金属学会

被引用文献 (1)*注記

もっと見る

参考文献 (14)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ