Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cu base Cu-Zr-Ti group block non-crystal alloy

An amorphous alloy, cu-zr-ti technology, which is applied in the field of Cu-based Cu-Zr-Ti bulk amorphous alloys, can solve the problems of randomness, low amorphous formation ability, undetermined amorphous composition range and Optimizing ingredients, etc.

Inactive Publication Date: 2005-03-16
DALIAN UNIV OF TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One is that the scope of the amorphous composition and the optimal composition have not been determined. This is because there is no clear composition criterion for guidance, and only a large composition step (10at.%) can be used, and the Cu of the binary basic composition 60 Zr 40 The choice is also very random;
[0007] The second is that the as-prepared amorphous may contain nanocrystals, proving that the reported composition has a low amorphous-forming ability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] Example, with Cu 64 Zr 28.5 Ti 7.5 Composition to prepare bulk amorphous alloys

[0038] The first step, the weighing of the composition ratio

[0039] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage Cu 64 Zr 28.5 Ti 7.5 Converted to weight percent Cu 57.9 Zr 37.0 Ti 5.1 , pure metal Zr, Ti and Cu raw materials with a purity of 99.9% weighed in proportion;

[0040] In the second step, Cu 64 Zr 28.5 Ti 7.5 Melting of alloy ingots

[0041] The metal mixture of Cu, Zr and Ti is smelted under the protection of argon gas by non-consumable arc melting method, and the vacuum is firstly pumped to 10 -2 Pa, then filled with argon until the pressure is 0.03±0.01MPa, the control range of melting current density is 150±10A / cm 2 , after melting, continue to smelt for 10 seconds, turn off the power, let the alloy cool down to room temperature with the copper crucible, then turn it ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Yield strengthaaaaaaaaaa
Densityaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to View More

Abstract

Cu based Cu-Zr-Ti block amorphous alloy in new material field comprises Cu, Zr and Ti element, is characterized as: alloy general formula (Cu#-[x]Zr#-[1-x])#-[1-y]Ti#-[y], in which, 54at.%<=x<=70at.%, 54at.%<=x<=70at.%, optimum amorphous constituent:Cu#-[64]Zr#-[28.5]Ti#-[7.5]. The characters of preparation process are: non-self-consumable arc smelting of auxiliary material and alloy ingot, copper mould negative pressure casting of amorphous alloy, argon gas pressure 0.03+ / -0.01Mpa, current density 150+ / -10A / cm#+[2], air pressure difference 0.01+ / -0.005Mpa, obtaining diameter 3mm block amorphous alloy. Right amount of Ti element in Cu-Zr effectively promotes the amorphous alloy heat stability, amorphous ability and intensity.

Description

technical field [0001] The invention relates to a Cu-based Cu-Zr-Ti bulk amorphous alloy with large amorphous forming ability and high strength, belonging to the field of new materials. Background technique [0002] Amorphous metal alloys are a class of metals or alloys with short-range order and long-range disorder structures, and they have high comprehensive mechanical properties and unique physical and chemical properties. However, due to the influence of metal or alloy amorphous forming ability (that is, the ability to form amorphous alloy), the preparation of such materials requires a higher cooling rate, and the general critical cooling rate is 10 5 K / s. In the order of cooling speed from high to low, commonly used quenching technologies include: melt atomization, thin film deposition technology, and copper roller quenching strip technology. The material form is often low-dimensional materials such as powder, thin strip, etc., and its application range is therefore a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C45/00
Inventor 董闯羌建兵王英敏王清
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com