Studies on properties of aluminum alloy for casting pistons
スポンサーリンク
概要
- 論文の詳細を見る
An attempt was made in statistical method to find out the correlations between various properties of a series of aluminum alloys for casting pistons and alloying constituents or casting conditions. The above alloys contained Si-12-21%, Cu-1-5%, Mg0.5N-1.5%, Ni-0-1%, and P-0.16-0.24% (additional).Ultimate tensile strength at room temperature increased with the increase in Cu content, but decreased with the increase in Si content. The maximum strength was achieved by the addition of 0.5% of Mg. The contents of Si and Cu had no effects on the strength at elevated temperatures. Increase in Si content (in particular, higher than 18%) was effective for elongation and creep resistance at elevated temperatures.Hardness at room temperature increased with the increase in Si or Cu content. Si content had a certain effect on fluidity. When P was not contained in binary Al-Si alloys or in quinary high-Si alloys, the fluidity was maximum at 18% of Si. While, P was contained in the above alloys, it was maximum at 24% of Si. Increase in Si content induced the reduction of sinking and the development of macro-shrinkage. Increase in Cu and Mg contents slightly accelerated micro-shrinkage. Primary crystals of Si were coarser when Si content was higher.The introduction of red phosphorus (up to 0.16% of P) would be more effective for refining Si crystals, and the effects were still unchanged for more amount of P.Both specific density and thermal expansion decreased with the increase in Si content. Consequently, the most successful properties were achieved at the composition of Si-18%, Cu-5%, Mg-0.5%, Ni-0%, and P-0.16% (additional).
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
- Mechanical and wear properties of SiC whisker/ADC12 aluminum alloy composites fabricated by die casting.
- Joining of aluminum and ceramics.
- タイトル無し
- Undercooling and solidification behavior of fluid clumps of second-poured melt of hypereutectic Al-Si alloy in Duplex Casting process.
- Change in apparent viscosity of stirred slurry during production of semi-solid hypereutectic Al-Si alloy by slurry-melt mixing process.