432 半溶融によるAl-Ni系金属間化合物スラリーの生成とそのダイカスト成形(OS 新材料(Ti,Mg,高合金,金属間化合物)の加工技術)

概要

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To form Al-Ni intermetallic compound, it is thought effective that pressure die-casting process of slurry is carried out under semi-solid condition. The preforms, which were compacted with Al-42mass%Ni mixed powder, were heated at temperature range below and above the combustion synthesis temperature to form the slurry. Structure of products diecast under semi-solid condition consisted of Al_3Ni_2, Al_3Ni phases and α-Al-Al_3Ni eutectic structure. The volume fraction of Al_3Ni phase increased while Al_3Ni_2 phase decreased, as die-casting temperature rose. The volume fractions of Al_3Ni phase and eutectic structure of the product diecast at 973K were 40 and 58%, respectively.
一般社団法人日本機械学会の論文
2000-11-24