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含29%Cr,23.5%Co,余量Fe的Cr-Co-Fe永磁合金在1200℃和变形速度ε=3·10~(-4)/秒下呈现超塑性。在800到1000℃的温度范围合金的机械性能由σ相确定。Cr-Co-Fe基永磁合金与熟知的AI一Ni一Co材料相比具有既能热变形又能冷变形的优点。制品通过特殊热处理获得永磁性。对于热变形而言,重要的是在高温下的强度性能。此外,因为本材料的多相性,还带
The Cr-Co-Fe permanent magnet alloy containing 29% Cr, 23.5% Co and the balance Fe shows superplasticity at 1200 ℃ and deformation rate ε = 3.10 ~ (-4) / s. The mechanical properties of the alloy at a temperature range of 800 to 1000 ° C are determined by the sigma phase. Cr-Co-Fe based permanent magnet alloys have the advantages of both hot and cold deformation compared to the well-known AI-Ni-Co materials. Products through a special heat treatment to obtain permanent magnetism. For thermal deformation, what matters is the strength properties at high temperatures. In addition, because of the heterogeneity of the material, but also with