Microstructural evolution of thermally treated melt-quenched amorphous Fe₄₀Ni₄₀B₁₂Si₈ alloy was studied in terms of its influence on corrosion behavior of the alloy. Alloy structure was transformed gradually from purely amorphous and chemically homogeneous to fully crystalline, yielding γ-(Fe,Ni), Ni₃₁Si₁₂ and (Fe,Ni)₂B phases as the final products. Corrosion study of the alloy in amorphous, partially crystalline as well as fully crystalline form, performed by electrochemical measurements in 0.5 M NaCl, together with the morphology examination, revealed that the microstructure and phase composition are crucial factors determining the corrosion resistance of the alloy in corrosive environment.

研究了热处理后的非晶态Fe ₄₀ Ni ₄₀ B ₁₂ Si ₈非晶态合金的微观组织演变对合金腐蚀行为的影响。合金结构逐渐从纯非晶态和化学均质转变为完全结晶，产生γ-（Fe，Ni），Ni ₃₁ Si ₁₂和（Fe，Ni）₂B阶段作为最终产品。通过在0.5 M NaCl中进行电化学测量，对非晶态，部分晶态和全晶态的合金进行腐蚀研究，并进行形态学检查，结果表明，显微组织和相组成是决定合金耐腐蚀性能的关键因素。腐蚀性环境。