Strengthening and twisting deformability of Al-1 mass%Cu alloy billets produced by heated mold continuous casting method(OCC).
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概要
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Al-1 mass%Cu alloy specimens were cast by the heated mold continuous casting (Ohno Continuous Casting) method developed by the authors. The specimens were cold worked by torsion. The relationships between the twisting workability, crack initiation, mechanical properties and structures of the specimens were examined and compared with those of the specimens produced by chill casting and hot working method. When the angle of torsion was increased, the chill cast specimens tended to exhibit crack initiation in the solidification grain boundary and fractured easily, but the OCC and the hot worked specimens were twisted smoothly and were free from such defects. The twisting fatigue life of the OCC specimens was 1.8 times that of the hot worked specimens and three times that of chill casting specimens. Mechanical properties of the twisted OCC specimens, such as hardness and fatigue strength, were superior to those of the twisted chill cast and the twisted hot worked specimens.
- 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
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