Abstract

The micromechanical properties of amorphous alloys Co₆₇Fe₃Cr₃Si₁₅B₁₂ and Ni₄₀Fe₄₀B₂₀ are nonmonotonically dependent on time of exposure in the magnetic field is established in the work. Magnetic treatment causes two competing processes that cause changes in the microhardness and temperature of the onset of intense crystallization. The first is fast-acting, associated with the decay of clusters (borides and silicides), that causes plasticization (reduction of microhardness by (22–27)%) and increase the temperature of thermal stability by (50–70)°C. The second process is long-term, associated with the growth of frozen crystallization centers. This process leads to a strengthening of the structure and, as a result, to decrease in the magnitude of magnetoplastic effect and the effect of thermal stability increasing.

摘要

非晶合金Co ₆₇ Fe ₃ Cr ₃ Si ₁₅ B ₁₂和Ni ₄₀ Fe ₄₀ B _{20的微观力学性能}非单调地依赖于在工作中建立的磁场中的暴露时间。磁处理会导致两个竞争过程，这两个过程会导致显微硬度和强烈结晶开始温度发生变化。第一个是快速反应，与团簇（硼化物和硅化物）的衰变有关，导致塑化（显微硬度降低 (22–27)%）并使热稳定性温度升高 (50–70)°C。第二个过程是长期的，与冷冻结晶中心的生长有关。这个过程导致结构的强化，因此减少了磁塑性效应的大小和增加热稳定性的影响。