The study of regularity of amorphous formation for multi-component alloys by mechanical alloying

摘要

The two parameters, namely enthalpy of formation of alloy A_(50)B_(50) ΔH_f and the difference of self-diffusion activation energy ΔH_s of constituent of alloy, are used to study the regularity of amorphous formation for multi-component alloys, according to the SSAR mechanism of amorphization by mechanical alloying. After analyzing numbers of experiments, a criteria of amorphization of binary alloys, ΔH_f < -0.0024(ΔH_s )~2 + 0.6000(ΔH_s)-33.0000 was obtained and used to analyze the 78 alloy systems with available experiments results. The total degrees of accuracy for the amorphous alloys forming or not by mechanical alloying are 87.3%. And for binary and ternary alloys, ΔH_f <-0.0036(ΔH_s)~2 + 0.7200(ΔH_s)-34.0000 was obtained and used to analyze the 78 binary alloy and 24 ternary alloy systems with available experimental results. The total degrees of accuracy are 83.7%.