Study of the structural relaxation-induced embrittlement of hypoeutectic Zr–Cu–Al ternary bulk glassy alloys
Study of the structural relaxation-induced embrittlement of hypoeutectic Zr–Cu–Al ternary bulk glassy alloys
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DOI：
10.1016/j.actamat.2008.08.026
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发表时间：
2008-12
期刊：
影响因子：
9.4
通讯作者：
Y. Yokoyama;T. Yamasaki;P. Liaw;A. Inoue
中科院分区：
文献类型：
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作者：
Y. Yokoyama;T. Yamasaki;P. Liaw;A. Inoue
高度可靠的机械性能是大块非晶合金 (BGA) 工业应用所依赖的最重要因素。大多数 BGA 由于结构松弛而表现出机械性能下降，这在放大和退火过程中很容易发生。尽管结构松弛通常伴随着严重的脆化，但从拉伸断裂应变和夏比冲击值来看，我们发现亚共晶BGA即使在结构完全松弛后也没有表现出延展性和韧性的降低。即使在结构完全松弛后，亚共晶 BGA 的疲劳行为也保持不变。
Highly reliable mechanical properties are the most important factors on which the industrial use of bulk glassy alloys (BGAs) depends. Most BGAs exhibit degradation of their mechanical properties due to structural relaxation, which easily occurs during enlargement and annealing. Although structural relaxation is usually accompanied with severe embrittlement, from the tensile fracture strain and the Charpy impact value, we have found that hypoeutectic BGAs exhibit no degradation of ductility and toughness even after complete structural relaxation. The fatigue behavior of hypoeutectic BGAs remains unchanged even after complete structural relaxation.