Study of hydrogenated amorphous alloys as high-strength and high-damping materials
Study of hydrogenated amorphous alloys as high-strength and high-damping materials
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DOI：
10.1016/s0925-8388(03)00262-7
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发表时间：
2003-06
影响因子：
6.2
通讯作者：
H. Mizubayashi;Y. Ishikawa;H. Tanimoto
中科院分区：
文献类型：
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作者：
H. Mizubayashi;Y. Ishikawa;H. Tanimoto
研究了Zr-Cu基α-合金中的氢内耗峰。从高强度和高阻尼材料的角度来看，对于抗拉强度超过1.5 GPa的Zr-Cu基α-合金，在300 Hz时，Tp的有效范围为250 ~ 400 K，Q− 1的有效范围为0.5×10− 2 ~ 2×10− 2，其中Tp和Q− 1分别为HIFP的峰值温度和峰值高度。对于HIFP机制，在Zr 60 Cu 40和Zr 60 − yCu 30 Al 10 Siy（y=0，1）a-合金[a-合金（I）]中，几乎所有的氢原子都对HIFP有贡献，而在Zr 50 Cu 50、a-Zr 40 Cu 60和a-Zr 40 Cu 50 − xAl 10 Six（x= 0，1）[a-合金（II）]中，位于化学势附近的氢位上的氢原子对HIFP有贡献。α-合金（II）的Tp显著高于α-合金（I）。在α-合金（Ⅱ）（a-Zr_（40）Cu_（49）Al_（10）Si_1）中，Si的加入使T_p急剧增加。对于α-合金（I）（Zr_（59）Cu_（30）Al_（10）Si_（1）），Si的加入使Tp略有增加。
We investigated the hydrogen internal friction peak (HIFP) in the Zr–Cu base a-alloys. From the high-strength and high-damping materials point of view, the available range for Tpis between 250 and 400 K at 300 Hz, and that for Q−1pis between 0.5×10−2and 2×10−2for the Zr–Cu base a-alloys with a tensile strength beyond 1.5 GPa, where Tpand Q−1pare the peak temperature and peak height of the HIFP, respectively. For the HIFP mechanism, almost all the hydrogen atoms contribute to the HIFP in Zr60Cu40and Zr60−yCu30Al10Siy(y=0, 1) a-alloys [a-alloys(I)] and the hydrogen atoms sitting in the hydrogen sites near the chemical potential can contribute to the HIFP in Zr50Cu50, a-Zr40Cu60and a-Zr40Cu50−xAl10Six(x=0,1) [a-alloys(II)]. Tpis considerably higher for a-alloys(II) than for a-alloys(I). The drastic increase in Tpdue to the Si addition by 1% is found for a-alloys(II) (a-Zr40Cu49Al10Si1). The small increase in Tpdue to the Si addition by 1% is found for a-alloys(I) (Zr59Cu30Al10Si1) The migration path for the HIFP is discussed.