Heavy size TRIP amorphous composite material and preparation method thereof

An amorphous composite material and large-size technology, applied in the field of amorphous alloys and their composite materials, can solve problems such as limiting engineering applications, and achieve the effects of easy engineering applications, reducing stress concentration, wide composition range and preparation conditions

Active Publication Date: 2015-04-08
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the smaller size of the composite material seriously limits its engineering application. Therefore, it is urgent to develop a large-sized amorphous composite material with work hardening ability and tensile plasticity to lay a good foundation for its engineering application.

Method used

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  • Heavy size TRIP amorphous composite material and preparation method thereof
  • Heavy size TRIP amorphous composite material and preparation method thereof
  • Heavy size TRIP amorphous composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 10mm×10mm large size Cu 42.25 Zr 46.5 Al 4 Ag 5 Nb 1.5 sn 0.75 Preparation and Characterization of Microstructure and Properties of Amorphous Composite Materials

[0033] (1) Alloy composition design

[0034] According to the theory of amorphous formation and alloy phase diagram, Al and Ag elements are added to the Cu-Zr binary alloy to improve the ability of the amorphous to resist crystallization and stabilize the metastable austenite phase. At the same time, Nb and Sn elements are added Elements that can react with existing alloying elements or react with added elements to form intermetallic compounds with high thermal stability, act as modifiers, promote the precipitation of crystal phases and disperse crystal phases. Specifically, the choice of Cu 42.25 Zr 46.5 Al 4 Ag 5 Nb 1.5 sn 0.75 alloy composition.

[0035] (2) Ingredients, alloy smelting and casting

[0036] Select commercially available pure metals Cu, Zr, Al, Ag, Nb, Sn with a pur...

Embodiment 3

[0048] Example 3 φ8mm large size Cu 46.25 Zr 48 Al 4 Ag 1 sn 0.75 Preparation and Characterization of Microstructure and Properties of Metallic Glass Composites

[0049] (1) Alloy composition design

[0050] According to the theory of amorphous formation and alloy phase diagram, adding Al and Ag elements on the basis of Cu-Zr binary alloy can improve the ability of amorphous to resist crystallization and stabilize the metastable austenite phase. At the same time, the added Sn element can An element that reacts with existing alloying elements to form intermetallic compounds with high thermal stability, acts as a modifier, promotes the precipitation of crystal phases and disperses crystal phases. Specifically, the choice of Cu 46.25 Zr 48 Al 4 Ag 1 sn 0.75 alloy composition.

[0051](2) Ingredients, alloy smelting and casting

[0052] Select commercially available pure metals Cu, Zr, Al, Ag, Nb, Sn with a purity higher than 99.9% (weight percentage) according to th...

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Abstract

The invention relates to a heavy size TRIP amorphous composite material and preparation method thereof, the composite material comprises the following alloy components: CuaZrbMcNdXe(atom mol ratio), wherein M is at least one of Al, Be, Ag, Au, Pd, Pt or rare earth element, N is at least one of Ti, Fe, Co, Ni, Cr, V, Zn, Nb, Ta, Mo, Hf, W, WC, SiC, and TiC, X is at least one of Si, C, B, Sn, Ga, Ge and In, wherein a is greater than or equal to 0 and less than or equal to 70, b is greater than or equal to 0 and less than or equal to 70, c is greater than or equal to 2 and less than or equal to 15, c is greater than or equal to 0 and less than or equal to 5, e is greater than or equal to 0.05 and less than or equal to 2, and sum of a, b, c, d and e is 100. According to the invention, amorphous formation capability of a matrix can be increased by alloying and technical adjusting, and a dispersed crystalline state second phase having phase transition induction plasticity effect can be generated in-situ, deformation induction generated during a deformation process of the second phase is used for obtaining large stretching plasticity and strong processing hardening capability. The prepared composite material can realize good combination of intensity and plasticity, and has wide engineering application prospect.

Description

technical field [0001] The invention belongs to the field of amorphous alloys and their composite materials, and specifically prepares large-sized amorphous composite materials with endogenous deformation-induced phase transformation toughening (TRIP) through suitable composition design and process adjustment, and then through the alloy The method of homogeneously disperses the crystal phase. The large-scale composite material has large tensile plasticity and excellent work hardening ability, and has very broad engineering application prospects. Background technique [0002] The structure of amorphous alloy materials is different from that of conventional crystalline metal materials, and its atomic arrangement presents the characteristics of long-range disorder and short-range order. The unique structure of amorphous alloys makes them exhibit many excellent mechanical properties, such as large elastic limit (about 2%), high fracture strength and fracture toughness, high ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10C22C45/00C22C1/02B22D18/06
Inventor 吕昭平宋温丽吴渊王辉刘雄军杜清曹迪周捷
Owner UNIV OF SCI & TECH BEIJING
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