Effects of a small amount of Si or Ge addition on stability and hydrogen-induced internal friction of Ti34Zr11Cu47Ni8 glassy alloys
Effects of a small amount of Si or Ge addition on stability and hydrogen-induced internal friction of Ti34Zr11Cu47Ni8 glassy alloys
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DOI：
10.1016/j.actamat.2003.12.019
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发表时间：
2004-04
期刊：
影响因子：
9.4
通讯作者：
M. Hasegawa;M. Takeuchi;H. Kato;A. Inoue
中科院分区：
文献类型：
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作者：
M. Hasegawa;M. Takeuchi;H. Kato;A. Inoue
采用x射线衍射、热分析和内摩擦温度依赖性研究了少量Si或Ge对Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}玻璃合金稳定性和氢致内摩擦行为的影响。发现1 at的加法。% Si, 2 at。% Si或1 at。Ge能有效稳定玻璃态，且Si比Ge更有效。在20 at以下，随着氢含量的增加，单玻相合金的内摩擦峰逐渐增大。结果表明，（Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}）{sub 99}Si{sub 1}玻璃合金的内耗峰比Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}低，而（Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}）{sub 98}Si{sub 2}和（Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}）{sub 99}Ge{sub 1}玻璃合金的内耗峰要高得多。应注意的是，（Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}）{sub 98}Si{sub 2}玻态合金含有14.4 at。% H表现出较高的内摩擦，Q{sup -1}约为4 × 10{sup -2}。单玻相合金的峰值温度在20at .%以下随氢含量的增加而降低。需要注意的是，极少量的Si的加入对提高单玻相合金的峰值温度是有效的。拉伸强度与比阻尼能力之间的关系表明，氢化（Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}）{sub 98}Si{sub 2}玻璃合金具有与结晶Mn-Cu-Al合金和Cu- al -Ni合金以及氢化Zr-Cu- al玻璃合金几乎相同的阻尼材料潜力。
Effects of a small amount of Si or Ge addition on stability and hydrogen-induced internal friction behavior of Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8} glassy alloys have been investigated by X-ray diffraction, thermal analysis and temperature dependence of internal friction. It is found that the addition of 1 at.% Si, 2 at.% Si or 1 at.% Ge is effective to stabilize the glassy state and that Si is more effective than Ge. The peak internal friction of the single glassy phase alloy increases with increasing hydrogen content below about 20 at.% H. It is found that (Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}){sub 99}Si{sub 1} glassy alloys have lower peak internal friction than the Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8} glassy alloys, while (Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}){sub 98}Si{sub 2} and (Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}){sub 99}Ge{sub 1} glassy alloys have much higher peak internal friction. It should be noted that a (Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}){sub 98}Si{sub 2} glassy alloy containing 14.4 at.% H shows high internal friction, Q{sup -1} of about 4 x 10{sup -2}. The peak temperature of the single glassy phase alloys decreases with increasing hydrogen content below about 20 at.%. It should be noted that the addition of an extremely small amount of Si is effective to increase the peak temperature of the single glassy phase alloys. The relationship between the tensile strength and specific damping capacity indicates that the hydrogenated (Ti{sub 34}Zr{sub 11}Cu{sub 47}Ni{sub 8}){sub 98}Si{sub 2} glassy alloys have almost the same potential for a damping material as crystalline Mn-Cu-Al and Cu-Al-Ni alloys and hydrogenated Zr-Cu-Al glassy alloys.