Mechanical Behaviors Of Zr-based And Ti-based Amorphous Alloys

Amorphous alloy is molten alloy obtained by rapid cooling of a long-range disorder of the alloy with high strength and elastic limit, etc., the crystal structure of different materials, a new hot spot for Materials Research. With the further study of the structure and properties of amorphous alloys, which began using the product life. However, the lower toughness of amorphous alloys, which largely reduces its applications. Based on the amorphous alloy annealed pre-load and study the effect of Zr-based amorphous alloy and the force of impact. And clinical application of biological materials were compared, analysis of TI-based amorphous alloy mechanical properties of features.(1) Zr-based amorphous alloy is a better overall performance and higher capacity of the alloy forming elements:Zr65Cu15Ni10Al10, by first pre-loaded on the alloy (such as creep and stress relaxation, etc.), then the determination of compressive strength and toughness, combined with the cross section of the alloy side and scanning electron (SEM), force test data and analytical power of microstructure variation. Compared before and after pre-loading changes of mechanical properties of amorphous alloys, summarized the pre-loaded on the structure and strength of the alloy effects. Furthermore, after annealing at different temperature and time, further mechanical testing, combined with micro-structure characteristics, summarized annealing on the amorphous structure and force of impact. Found:the role of amorphous annealing there is a certain threshold value, the value before and after the change of mechanical properties of amorphous structure and obvious.The study found that relaxation of amorphous intensity increased, the strain rate decreased, the elastic modulus slightly increased. Residual stress can be a good fit for digital. Stress relaxation, resulting in the uneven division of amorphous stress, structural properties of differentiation. The effect of annealing temperature on the amorphous threshold Tk existence, with the annealing temperature, the amorphous alloy was non-linear change. In this paper, Zr-based amorphous and annealed by the effect of gravity and more after the changes in the structure and mechanical properties of the analysis, the amorphous area of expansion of the use of great practical significance to study the amorphous, in particular, improve the study provides a non-ductile New research angles.(2) Ti-based amorphous component is 1 # Ti-Zr-Cu-Pd,2 # Ti-Zr-Cu-Pd-Si. Mechanical study, after determination of the mechanical amorphous, Ti-based amorphous alloy as exploring biological materials (such as dental materials) possibilities. Articles by bending the teeth in a simulated external force and effect of chewing at different rates based on the compression, bending strength and toughness of amorphous testing and fixed rate and variable rate of compression determined. The relative ratio of biological materials with the traditional analysis of amorphous materials as the advantages of biological and mechanical properties of materials related to the controlling factors, combined with the macro and micro structural features to analyze the performance of the formation mechanism. Ti-based biomaterials, compared with the usual, obvious advantages strength, modulus of elasticity very, toughness is poor. High bending strength, the overall show brittle characteristics. Compression rate, the mechanical properties of amorphous obvious. The study of biological material breaks through the traditional multi-crystalline alloy mainly to the situation and expand the field of biological material selection, as well as amorphous materials to improve the use of value.