12%アルミニウム鉄合金の圧延加工―実験計画法による加工工程の決定―

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  • Rolling of 12% Aluminium Iron Alloy, Rolling Process Decided by Design of Experiment
  • 12 アルミニウムテツ ゴウキン ノ アツエン カコウ ジッケン ケイカクホウ ニ ヨル カコウ コウテイ ノ ケッテイ

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抄録

High aluminium iron alloy is difficult to roll, and in spite of its high permiability it is not commercially developed. This study is carried out for the purpose of determination of the best rolling process of the 12%Al-Fe alloy. The design of experiment was adopted in order to determine the optimun process, and then L16 orthognal array modified is used. There are six factors for forging, hot rolling and cold rolling, and two or four levels in each factor. The optimum working condition obtained for 12%Al-Fe alloy is as follows: The cast slab is (1) forged at 1000°C, (2) hot rolled repeatedly from 700°C to total reduction above 80%, (3) cold-rolled continuously after hot rolling, and (4) cold-rolled after quenching from 650°∼700°C after 50% cold-roll to obtain thinner sheet. According to this process, 12%Al-Fe alloy can be cold-rolled up to 99% reduction and a thin sheet of 0.12 mm thick can be obtained. It is concluded that the better workability of this alloy is developed by the fiber structure formed during hot rolling about 700°C, and this fiber structure increases toughness and strength of alloy in the direction of rolling. The mechanical properties of thin sheets are the tensile strength of 85 kg/mm2 and the elongation of 15% in maximum.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 27 (6), 271-277, 1963

    公益社団法人 日本金属学会

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