首页|内生型(Ti0.474Zr0.34Cu0.06-Be0.126)100-xFex(x=0,2)金属玻璃基复合材料的动态力学行为

内生型(Ti0.474Zr0.34Cu0.06-Be0.126)100-xFex(x=0,2)金属玻璃基复合材料的动态力学行为

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为了解内生β-Ti相的Zr/Ti基金属玻璃复合材料的动态力学性能和热力学稳定性,采用力学弛豫谱研究了(Ti0.474Zr0.34-Cu0.06Be0.126)100-xFex(x=0,2)金属玻璃复合材料.通过引入Fe元素,提高了β-Ti相的稳定性.此外,还发现了一个异常的内耗峰,这是由于在亚稳的β-Ti相中析出ω-Ti所引起的.在玻璃化转变温度T以下,由于相变和非晶基体部分结晶的耦合效应,2种金属玻璃复合材料的储能模量均表现出异常过冲行为.所得结果为更好地理解内生亚稳β-Ti型金属玻璃复合材料的复杂动态力学弛豫行为提供了借鉴.
Dynamic Mechanical Behavior of In-situ(Ti0.474Zr0.34Cu0.06-Be0.126)100-xFex(x=0,2)Bulk Metallic Glass Composites
To understand the dynamic mechanical properties and thermodynamic stability of β-Ti phase-embedded Zr/Ti-based bulk metallic glass composites(BMGCs),(Ti0.474Zr0.34Cu0.06Be0.126)100_xFex(x=0,2)BMGCs were prepared and investigated.Results show that by introducing Fe element,the stability of β-Ti phase is improved.An abnormal internal friction peak can be observed due to the precipitation of ω-Ti in the metastable β-Ti phase.Below the glass transition temperature T,both BMGCs show abnormal overshoot on storage modulus due to the coupling effect of phase transition and partial crystallization of amorphous matrix.This research provides information about the complex dynamic mechanical relaxation behavior of the in-situ metastable β-Ti BMGCs.

bulk metallic glass compositesdynamic mechanical analysisphysical agingdynamic heterogeneity

肖海洋、吕国建、乔吉超

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西北工业大学力学与土木建筑学院,陕西西安 710072

块体金属玻璃复合材料 动态力学分析 物理时效 动态非均匀性

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi ProvinceFundamental Research Funds for the Central Universities

51971178522711532021JC-12D5000220034

2024

10.12442/j.issn.1002-185X.E20230041

稀有金属材料与工程
中国有色金属学会,中国材料研究学会,西北有色金属研究院

稀有金属材料与工程

CSTPCD北大核心
影响因子：0.634
ISSN：1002-185X
年,卷(期)：2024.53(1)
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