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15Mn26Al_4 是我国近年来发展的一种完全不含镍铬的新型奥氏体钢,它具有良好的低温力学性能和十分稳定的奥氏体组织,可在液氢温度(-253℃)下使用而不变脆。同时这种钢的室温导磁率很低,是一种性能优越的无磁钢。近年来,我们在研究15Mn26Al_4 低
15Mn26Al_4 is a new type of austenitic steel which has been developed completely in recent years without nickel-chromium. It has good low-temperature mechanical properties and very stable austenitic structure and can be used at liquid-hydrogen temperature (-253 ℃) Not brittle. At the same time this steel is very low permeability at room temperature, is a superior performance of non-magnetic steel. In recent years, we have studied 15Mn26Al_4 low