Feasibility study of high-strength and high-damping materials by means of hydrogen internal friction in amorphous alloys
Feasibility study of high-strength and high-damping materials by means of hydrogen internal friction in amorphous alloys
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DOI：
10.1016/s0925-8388(01)01529-8
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发表时间：
2002-01-17
影响因子：
6.2
通讯作者：
Tanimoto, H
中科院分区：
文献类型：
--
作者：
Mizubayashi, H;Murayama, S;Tanimoto, H
为了探索高强度和高阻尼材料的可行性，我们研究了非晶 (a-) Zr60Cu40-xAlx (x=0, 5, 10) 和 a-Zr40Cu50Al10 中的氢内耗峰 (HIFP) 以及 a-Zr60Cu30Al10 的拉伸强度 sigma(f) 作为氢浓度的函数。结果是相对于 a-Zr50Cu50、a-Zr40Cu60 和 a-Ti50Cu50 中报道的 HIFP 进行讨论的。 a-Zr60Cu30Al10 的 sigma(f) 从不带电状态下的 1.5 GPa 增加到约 15 at.% H 时的 2 GPa。a-合金中的 HIFP 被观察为非常宽的峰，其中发现的峰值温度从具有 1 at.% H 的 a-Zr40Cu60-xAlx 中的 350 K 到 a-Ti50Cu50 中的 200 K 15 at.%。尽管在带电状态下的a-Zr60Cu40-xAlx (x=0, 10)中观察到峰值高度Q(peak)(-1)超过3X10(-2)的HIFP，但由于氢致结构弛豫(HISR)，其Q(peak)(-1)在350 K老化后表现出下降。然而，对于所有现有的α合金，HISR后在热稳定状态下观察到的Q(peak)(-1)仍然可以高达2X10(-2)。目前的结果表明，P、充氢α-合金是潜在的高强度和高阻尼材料。 (C) 2002 Elsevier Science B.V. 保留所有权利。
Exploring the feasibility of high-strength and high-damping materials, we investigated the hydrogen internal friction peak (HIFP) in amorphous (a-) Zr60Cu40-xAlx (x=0, 5, 10) and a-Zr40Cu50Al10 and the tensile strength, sigma(f), of a-Zr60Cu30Al10 as a function of the hydrogen concentration. Results are discussed relative to the HIFP reported in a-Zr50Cu50, a-Zr40Cu60 and a-Ti50Cu50. sigma(f) of a-Zr60Cu30Al10 increases from 1.5 GPa in the no-charged state to 2 GPa at about 15 at.% H. The HIFP in the a-alloys is observed as a very broad peak, where the peak temperature found varies from 350 K in a-Zr40Cu60-xAlx with 1 at.% H to 200 K in a-Ti50Cu50 with 15 at.%. Although the HIFP with the peak height, Q(peak)(-1), beyond 3X10(-2) is observed in a-Zr60Cu40-xAlx (x=0, 10) in the as charged state, its Q(peak)(-1) shows a decrease after aging at 350 K due to the hydrogen induced structural relaxation (HISR). However, for all the present a-alloys, Q(peak)(-1) observed in the thermally stable state after the HISR can be still as high as 2X10(-2). The present results suggest that the P, hydrogen-charged a-alloys are potential high-strength and high-damping materials. (C) 2002 Elsevier Science B.V. All rights reserved.