Glass Forming Ability of La-rich La-Al-Cu Ternary Alloys

Hao Tan; Zhaoping Lu; Haibiao Yao; Bin Yao; Yuanping Feng; Yi Li

doi:10.2320/matertrans.42.551

Hao Tan, Zhaoping Lu, Haibiao Yao, Bin Yao, Yuanping Feng, Yi Li

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Keywords: melting behavior, differential thermal analysis, glass forming ability, reduced glass transition temperature, lanthanum-rich lanthanum-aluminum-copper alloys, eutectic composition

JOURNAL FREE ACCESS

2001 Volume 42 Issue 4 Pages 551-555

DOI https://doi.org/10.2320/matertrans.42.551

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Abstract

Melting behavior and the reduced glass transition temperature (T_rg) in La-rich La–Cu–Al based alloys was systematically investigated. It was found that reduced glass transition temperature increased to the maximum when the liquidus temperature decreased to the minimum for La_86−xCu_xAl₁₄ (x=10–36) alloys. The best glass formation in La-rich La–Cu–Al ternary system was obtained at La₆₆Cu₂₀Al₁₄ alloy, which is at a eutectic point with the highest reduced glass transition temperature of 0.541 among these alloys. The glass forming ability of these alloys is correlated and discussed with their reduced glass transition temperature.

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