MECHANICAL PROPERTIES OF Ni-Fe-Cu-P-B ALLOY PRODUCED BY TWO COMPONENT MELT SPINNING (TCMS).

The aim of this work was to investigate the microstructure and mechanical properties of the two-component melt-spun (TCMS) alloy produced from Ni₄₀Fe₄₀B₂₀ and Ni₇₀Cu₁₀P₂₀ melts. The Ni₄₀Fe₄₀B₂₀, Ni₇₀Cu₁₀P₂₀, Ni₅₅Fe₂₀Cu₅P₁₀B₁₀ alloys were arc-melted. Then the alloys were melt-spun in the two different ways i.e.: by casting from a single-chamber crucible and from the two-chamber crucible. All of the above mentioned alloys were processed in the first way and the Ni₄₀Fe₄₀B₂₀ and Ni₇₀Cu₁₀P₂₀ were simultaneously cast on the copper roller from the two-chamber crucible. The microstructure of the alloy was studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) and light microscopy. The mechanical properties were investigated using tensile testing and nanoindentation. The two-component melt-spun (TCMS) amorphous Ni₅₅Fe₂₀Cu₅P₁₀B₁₀ alloy present hardness, tensile strength and Young modulus on the significantly higher level than for a single phase amorphous Ni₅₅Fe₂₀Cu₅P₁₀B₁₀ alloy and slightly below the corresponding values for the Ni₄₀Fe₄₀B₂₀. [ABSTRACT FROM AUTHOR]