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

Copper-aluminum-iron-manganese high-temperature shape memory alloy and preparation method thereof

A memory alloy, high-temperature technology, applied in the field of copper-aluminum-iron-manganese (CuAlFeMn) high-temperature shape memory alloy and its preparation, can solve the problems of loss of memory performance, poor stability of shape memory effect, large phase transition lag, etc., and achieve high Martensitic Bulk phase transition temperature, excellent shape memory effect stability, effect of excellent shape memory stability

Active Publication Date: 2013-07-24
XIAMEN UNIV
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polycrystalline alloy of Cu-Al-Ni alloy is very brittle and fractures after only about 2% strain, and the stability of its shape memory effect is poor, so it is difficult to be practically applied; the thermal stability of Cu-Zn-A1 alloy Poor resistance, use at higher temperature will easily lead to loss of memory performance; although Cu-Al-Ag, Cu-Al-Co, Cu-Al-Zr, Cu-Al-Fe and Cu-Al-Nb alloys show high Martensitic transformation temperature, but the plasticity and stability of the alloy are poor; the phase transformation hysteresis of CuAl-Pd alloy is relatively large, and it has shown the characteristics of semi-thermoelastic martensitic transformation, and the shape memory effect is small

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper-aluminum-iron-manganese high-temperature shape memory alloy and preparation method thereof
  • Copper-aluminum-iron-manganese high-temperature shape memory alloy and preparation method thereof
  • Copper-aluminum-iron-manganese high-temperature shape memory alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: prepare Cu 78 Al 12 Fe 4 mn 6 High Temperature Shape Memory Alloy and Its Performance Test

[0038] Weigh 78% of copper with a purity of 99.9%, 12% of Al with a purity of 99.9%, 4% of iron with a purity of 99.9%, and 6% of manganese with a purity of 99.5%; put the above copper, aluminum, iron and manganese raw materials into In the vacuum melting furnace, vacuumize to 6.6×10 -3 Pa, filled with high-purity argon to 0.7×10 5 Pa, and then repeated smelting for 4 times to obtain copper aluminum iron manganese (CuAlFeMn) high temperature shape memory alloy ingots; the above prepared copper aluminum iron manganese (CuAlFeMn) high temperature shape memory alloy ingots were cut into cylindrical shapes by wire cutting Samples and sheet samples, the diameter of the cylindrical sample is 3mm, and the height is 5mm; the cylindrical sample and the sheet sample are put into a vacuum heat treatment furnace for heat treatment, the vacuum degree is 5Pa, and the heat t...

Embodiment 2

[0046] Embodiment 2: prepare Cu 77 Al 11 Fe 4 mn 8 High Temperature Shape Memory Alloy and Its Performance Test

[0047] Weigh 77% of copper with a purity of 99.9%, 11% of Al with a purity of 99.9%, 4% of iron with a purity of 99.9%, and 8% of manganese with a purity of 99.5%; put the above copper, aluminum, iron and manganese raw materials into In the vacuum melting furnace, vacuumize to 6.6×10 -3 Pa, filled with high-purity argon to 0.7×10 5 Pa, and then repeated smelting for 4 times to obtain copper aluminum iron manganese (CuAlFeMn) high temperature shape memory alloy ingots; the above prepared copper aluminum iron manganese (CuAlFeMn) high temperature shape memory alloy ingots were cut into cylindrical shapes by wire cutting Samples and sheet samples, the diameter of the cylindrical sample is 3mm, and the height is 5mm; the cylindrical sample and the sheet sample are put into a vacuum heat treatment furnace for heat treatment, the vacuum degree is 5Pa, and the heat t...

Embodiment 3

[0055] Embodiment 3: prepare Cu 82 Al 10 Fe 5 mn 3 High Temperature Shape Memory Alloy and Its Performance Test

[0056] Weigh 82% of copper with a purity of 99.9%, 10% of Al with a purity of 99.9%, 5% of iron with a purity of 99.9%, and 3% of manganese with a purity of 99.5%; put the above copper, aluminum, iron and manganese raw materials into In the vacuum melting furnace, vacuumize to 6.6×10 -3 Pa, filled with high-purity argon to 0.7×10 5 Pa, and then repeated smelting for 4 times to obtain copper aluminum iron manganese (CuAlFeMn) high temperature shape memory alloy ingots; the above prepared copper aluminum iron manganese (CuAlFeMn) high temperature shape memory alloy ingots were cut into cylindrical shapes by wire cutting Samples and sheet samples, the diameter of the cylindrical sample is 3mm, and the height is 5mm; the cylindrical sample and the sheet sample are put into a vacuum heat treatment furnace for heat treatment, the vacuum degree is 5Pa, and the heat t...

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
Diameteraaaaaaaaaa
Compressive fracture strainaaaaaaaaaa
Login to View More

Abstract

The invention relates to a copper-aluminum-iron-manganese high-temperature shape memory alloy and a preparation method thereof. The invention relates to a high-temperature shape memory alloy. The invention provides a copper-aluminum-iron-manganese high-temperature shape memory alloy with high martensitic phase-transformation temperature, stable extra-large shape memory effect and excellent stability thereof, good plasticity, and low cost. The invention also provides a preparation method thereof. The copper-aluminum-iron-manganese high-temperature shape memory alloy is composed of, by mass, 75- 83% of copper, 9-13% of aluminum, 3-6% of iron, and 2-9% of manganese. According to the invention, copper, aluminum, iron, and manganese raw materials are placed into a smelting furnace; the furnace is vacuumed, and argon is filled in; smelting is carried out under an argon atmosphere, such that a copper-aluminum-iron-manganese high-temperature shape memory ingot is obtained; the obtained copper-aluminum-iron-manganese high-temperature shape memory ingot cut into a sample; the obtained copper-aluminum-iron-manganese high-temperature shape memory ingot sample is subjected to a heat treatment, and is subjected to ice-water quenching, such that the copper-aluminum-iron-manganese high-temperature shape memory alloy is obtained.

Description

technical field [0001] The invention relates to a high-temperature shape-memory alloy, in particular to a low-cost, practical copper-aluminum-iron-manganese (CuAlFeMn) high-temperature shape-memory alloy with a stable super-large shape memory effect and a preparation method thereof. Background technique [0002] In recent years, scholars at home and abroad have conducted a lot of research on high-temperature shape memory alloys, and successively studied Ni-Ti-Pd, Ni-Ti-Hf / Zr, Ni-Al and Cu-Al bases and Ni-Mn-Ga, etc. High Temperature Shape Memory Alloys (1. Wang Yongqian, Zhao Liancheng, Research Progress of High Temperature Shape Memory Alloys, Functional Materials, 1995, 26(4): 377; 2. Peng Hongying, Wei Zhongguo, Yang Dazhi, Research Progress of High Temperature Shape Memory Alloys, Materials Science and Engineering, 1994, 12 (1): 5; 3, K.Otsuka, X.Ren, Recent development in the research of shape memory alloys, Intermetallics, 1999, 7:511; 4, J.Van Humbeeck, High temperatu...

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): C22C9/01C22C9/05C22C1/02C22F1/08
Inventor 杨水源刘兴军王翠萍苏渝施展张锦彬黄艺雄
Owner XIAMEN UNIV
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