高強度Al-TM-Ln系急冷凝固粉末の成形固化および材料特性 Consolidation and Mechanical Properties of High Strength Rapidly Solidified Al-TM-Ln Alloy Powder
Rapidly solidified AI-TM-Ln base alloy has excellent mechanical properties such as high specific strength or specific modulus. In this study, Al<SUB>92</SUB>Ni<SUB>4.5</SUB>Ti<SUB>1.5</SUB>CulZr<SUB>0.8</SUB>Ce<SUB>0.2</SUB> (at%) alloy powders were directly forged using a double action forging press without preparing a compact preform that is difficult to consolidate because of the spherical shape and hardness of the powder. The tensile strength of above test pieces preheated at 723K for 3600s shows 670MPa and 2% elongation, which is comparable with the test pieces prepared by extrusion from the same powder. This process gives near net shape parts with excellent mechanical properties using the rapidly solidified Al-TM-Ln base alloy.
粉体および粉末冶金 43(10), 1183-1187, 1996-10-15
Japan Society of Powder and Powder Metallurgy