日本金属学会誌

J. Japan Inst. Metals, Vol. 21, No. 4 (1957),
pp. 210-213

Study on Extrusion of Aluminium alloys (3rd Report). On the Effects of Factors Upon Recrystallization Temperature of Extruded Aluminium Alloys

Hiroshi Asada, Kichizô Koike and Saburô Morimoto


Abstract:

The effects of manganese content and of the extrusion conditions on the recrystallization temperature of aluminium alloys were investigated and the following results were obtained. (1) According to the microhardness test of cold-rolled high purity Al-Mn alloys, it appears that the manganese content dissolved in solid solution is effective for the elevation of the recrystallization temperature. (2) With the extruded commercially pure Al-Mn and Al-Cu-Mn alloys, the elevation of the recrystallization temperature is proportional to the increase of Mn and Cu contents. (3) The recrystallization temperature drops by higher extrusion ratio or lower extrusion temperature. (4) From the above results it may be concluded that hot-working by extrusion gives the same influence as cold-working on aluminium alloys.


(Received 1956/10/26)

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