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绪言 当研究Co—Fe—V合金时,已得知减少V增加Cr可获得冷加工性能良好的永久磁性材料;如此,则对Co—Fe—Cr—V合金以及用Cr代替V的Co—Fe—Cr合金进行了研究。 试片的配制是采用了钴、电解铁、铬和铁钒合金,然后在高周波感应爐中熔化,再用模具鑄型。加热至1000℃进行锻造,锻压比大约为3;室温下空冷,再冷压延成薄板,由此薄板上切取条状试片。Co—Fe—Cr—V合金的组成分是53％Co,35％Fe,6％Cr,6％V。它的磁性特性是:Br=1000G,Hc=350Oe,(BH)max=2.25×10~6。加工性極好,冷压延厚度可达0.15公厘,加工变形量为96％。加工后进行热处理,在600℃下经
INTRODUCTION When studying Co-Fe-V alloys, it has been known that the reduction of V by Cr increases the availability of permanent magnetic materials with good cold workability; thus, the Co-Fe-Cr-V alloy and the Co-Fe- Cr alloy has been studied. Preparation of the test piece is the use of cobalt, electrolytic iron, chromium and iron vanadium alloy, and then melted in a high frequency induction furnace, and then die casting. Heated to 1000 ° C forging, forging ratio of about 3; at room temperature air-cooled, then cold rolled into a thin plate, which strip cut strip specimen. The composition of the Co-Fe-Cr-V alloy is 53% Co, 35% Fe, 6% Cr, 6% V. Its magnetic properties are: Br = 1000G, Hc = 350Oe, (BH) max = 2.25 × 10 ~ 6. Excellent workability, cold rolling thickness of up to 0.15 mm, deformation of 96%. After processing heat treatment, at 600 ℃ by