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A kind of multi-component fenicoaltizr superelastic alloy and preparation method thereof

A superelastic alloy and multi-component technology, applied in the field of superelastic alloys, to achieve the effects of easy industrial production, inhibition of element segregation, and process control

Active Publication Date: 2022-06-21
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the superelastic response of iron alloys strengthened by nanoscale γ′ particles is greatly influenced by the β-NiAl(B2) precipitated phase along the grain boundaries

Method used

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  • A kind of multi-component fenicoaltizr superelastic alloy and preparation method thereof
  • A kind of multi-component fenicoaltizr superelastic alloy and preparation method thereof
  • A kind of multi-component fenicoaltizr superelastic alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Select metal iron, metal nickel, metal cobalt, metal aluminum, metal titanium, metal zirconium, the alloy composition is as follows (atomic percentage %): Fe=40.5, Ni=30.0, Co=16.0, Al=10.5, Ti=2.5, Zr=0.5.

[0025] The preparation method includes the following steps: performing arc smelting in argon protection, using magnetic stirring technology to mix the metal solution evenly during the smelting process, and sucking and casting into alloy alloy bars;

[0026] The ingot is heated to 1100°C, and after holding for 2 hours, it is hot rolled into a thin plate with a thickness of 15mm at this temperature;

[0027] Air-cooled to room temperature;

[0028] The rolled sheet is subjected to intermediate annealing treatment at 1200 ° C for 30 minutes, followed by water quenching;

[0029] Cold rolling the sheet to a thickness of 2mm at room temperature;

[0030] The solution-treated material was aged at 600°C for 8 hours, and then water quenched.

Embodiment 2

[0032] Select metal iron, metal nickel, metal cobalt, metal aluminum, metal Ti, metal Zr, the alloy composition is as follows (atomic percentage %): Fe=40.5, Ni=30.0, Co=16.0, Al=10.5, Ti=2.5, Zr=0.5.

[0033] The preparation method includes the following steps: arc smelting and casting into alloy ingots; smelting is carried out in argon protection, and a magnetic stirring technology is used to mix the metal solution evenly in the smelting process; and the argon protection is used to protect the casting and cast into a circle with a size of a circle. ingot;

[0034] The ingot is heated to 1100°C and kept for 2h, then hot rolled into a thin plate with a thickness of 15mm at this temperature;

[0035] Air-cooled to room temperature;

[0036] The rolled sheet is subjected to intermediate annealing treatment at 1200 ° C for 30 minutes, followed by water quenching;

[0037] Cold rolling the sheet to a thickness of 2mm at room temperature;

[0038] The solution-treated material ...

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Abstract

The invention provides a multi-component FeNiCoAlTiZr superelastic alloy and a preparation method thereof. The superelastic alloy contains 30-50 at.% Fe, 25-55 at.% Ni, 10-30 at.% Co, 5-16 at.% % Al, 1-8 at.% Ti, 0-15 at.% Zr. The preparation method of the superelastic alloy includes processes such as homogenization, intermediate annealing, rolling and aging. The superelastic alloy of the present invention promotes the precipitation of nano-precipitated phases by adding specific elements, effectively reduces thermal hysteresis, and obtains good superelastic properties through a unique heat treatment process, and has broad application prospects.

Description

technical field [0001] The invention relates to a multi-component FeNiCoAlTiZr superelastic alloy and a preparation method thereof, belonging to the technical field of superelastic alloys. Background technique [0002] Usually the martensitic transformation of Fe-based alloys is not thermoelastic, and such alloys do not possess superelasticity. Austenite deformation, austenite ordering, austenite aging heat treatment and other methods can be used to control the martensitic transformation of Fe-based alloys to make them have thermoelastic characteristics, so as to obtain superelasticity in Fe-based alloys. In recent years, a variety of iron-based superelastic alloys, such as Fe-Ni-Co-Ti, Fe-Mn-Al-Ni, Fe-Ni-Co, have been successfully obtained by introducing ordered precipitates through austenitic aging heat treatment. -Al-Ta-B etc. At the same time, the alloy also has good mechanical properties, damping properties, low price and excellent processing performance. Due to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C33/04C22C38/06C22C38/10C22C38/08C22C38/14C22F1/00C21D6/00C22C1/02C22F1/10C22C19/03
CPCC22C30/00C22C38/06C22C38/105C22C38/14C22C1/02C22C33/04C22F1/00C21D6/001C21D6/007C22F1/10C22C19/03
Inventor 张洋杜康张中武黄涛马亚玺郁永政黄楷岚
Owner HARBIN ENG UNIV
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