Zirconium-based metal glass endogenic composite material and preparation method thereof

Abstract

The invention discloses a zirconium-based metal glass endogenic composite material and a preparation method thereof. According to the invention, an atomic percent expression of components of the zirconium-based metal composite material is ZraTibCucNidBee, wherein a is not less than 44 and not more than 49, b is not less than 14 and not more than 16, c is not less than 13 and not more than 17, d is not less than 11 and not more than 13, e is not less than 5 and not more than 18, and a+b+c+d+e=100. A method for preparing the zirconium-based metal glass endogenic composite material comprises the following steps of: selecting a block metal glass alloy system, and adjusting alloy components according to a phase selection principle so as to separate out an intermetallic compound phase in a condensation process; smelting the alloy components obtained in the first step to a mother alloy according to an electric arc smelting method; remelting the mother alloy, and carrying out suction cast through a copper mold so as to obtain a section bar; placing the section bar into a processed crucible, adopting induction smelting to a molten state, thermally insulating and quickly condensing in sequence so as to an as-cast endogenic composite material, wherein a second phase of the intermetallic compound is uniformly distributed on a metal glass substrate. According to the invention, the high intensity and the high hardness of the block metal glass are kept, and the room-temperature plasticity is greatly improved.

Description

Technical field [0001] The present invention is a metal -based composite material technology, especially a kind of composite material and its preparation method of the fundamental glass. Background technique [0002] Although block metal glass (BMG) material has high breakthrough strength and hardness and high elastic strain limits, the plastic deformation of single -phase metal glass is achieved by high local area cutting and deformation.The number of band is very limited, and the catastrophic crispy crispy fracture without macro plastic deformation will occur at room temperature.Therefore, the problem of room temperature brittleness has developed into an important bottleneck for BMG materials. [0003] In order to improve the room temperature of BMG materials, the Johnson research team in 2000 for the first time through the addition of NB alloy elements to the ZR-TI-CU-NI-BE alloy system, preparing micron size β-ZR (Ti) solid soluble increased plasticBMG composite material, its...

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Problems solved by technology

[0004] Although the above-mentioned as-cast endogenous solid solution plasticized BMG composite material has a remarkable plasticizing effect, the strength of the plastic solid solution phase is much lower than that of the metallic glass matrix, resulting in a significant decrease in the strength of the composite material.

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