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Body-centered cubic (BCC) Zr-Ti-Mo-Sn-Nb alloy with low modulus and low magnetic susceptibility

A zr-3.3%ti-3.4%mo-4.1%sn-6.5%nb, zr-3.3%mo-4.0%sn-6.3%nb technology, applied in BCC Zr-Ti-Mo-Sn-Nb solid solution alloy In the field of materials, it can solve the problems of low magnetic susceptibility, low elastic modulus, etc., and achieve the effect of low magnetic susceptibility, low elastic modulus, and reasonable additive content

Active Publication Date: 2013-07-24
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no reports on β-Zr alloys with low elastic modulus and low magnetic susceptibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1 Zr 82.7 Ti 3.3 Mo 3.4 sn 4.1 Nb 6.5 alloy

[0010] Step 1: Alloy Preparation

[0011] Zr 82.7 Ti 3.3 Mo 3.4 sn 4.1 Nb 6.5 alloy, this composition is derived from the cluster formula [(Mo 0.5 sn 0.5 )(Zr 13 Ti)]Nb 1 . Zr, Ti, Mo, Sn and Nb pure metals are batched according to the given alloy weight percentage; the mixture is placed in the water-cooled copper crucible of the arc melting furnace, and the non-consumable arc melting method is used under the protection of argon gas Carry out smelting, repeat smelting in this way for 3 times to obtain an alloy ingot with uniform composition; then melt the evenly smelted alloy ingot at the end, and use the copper mold suction casting process to suck the melt into the cylindrical copper mold cavity to obtain a 6 mm diameter bar.

[0012] Step 2: Alloy structure and performance testing

[0013] The structure of the alloy was detected by XRD, and it was determined to be a single BCC β-Zr solid solution s...

Embodiment 2

[0014] Example 2 Zr 86.5 Mo 3.3 sn 4.0 Nb 6.3 alloy

[0015] Step 1: Alloy Preparation

[0016] Zr 86.5 Mo 3.3 sn 4.0 Nb 6.3 alloy, this composition is derived from the cluster formula [(Mo 0.5 sn 0.5 )Zr 14 ]Nb 1 . Same as Step 1 in Embodiment 1.

[0017] Step 2: Alloy structure and performance testing

[0018] The structure of the alloy was detected by XRD, and it was determined to be a single BCC β-Zr solid solution structure; its performance parameters were tested by nanoindentation, magnetic property measurement system and Vickers hardness tester, respectively: elastic modulus E= 77 GPa, magnetic susceptibility χ g = 2.12cm 3 g -1 , hardness H V = 288kgf·mm -2 .

Embodiment 3

[0019] Example 3 Zr 87.1 Mo 6.5 Nb 6.3 alloy

[0020] Step 1: Alloy Preparation

[0021] Zr 87.1 Mo 6.5 Nb 6.3 alloy, this composition is derived from the cluster formula [MoZr 14 ]Nb 1 . Same as Step 1 in Embodiment 1.

[0022] Step 2: Alloy structure and performance testing

[0023] The structure of the alloy was detected by XRD, and it was determined to be a single BCC β-Zr solid solution structure; its performance parameters were tested by nanoindentation, magnetic property measurement system and Vickers hardness tester, respectively: elastic modulus E= 84 GPa, magnetic susceptibility χ g = 2.23cm 3 g -1 , hardness H V = 259kgf·mm -2 .

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Abstract

The invention discloses a body-centered cubic (BCC) Zr-Ti-Mo-Sn-Nb alloy with low modulus and low magnetic susceptibility, and the BCC Zr-Ti-Mo-Sn-Nb alloy belongs to the technical field of new materials. The BCC Zr-Ti-Mo-Sn-Nb alloy is characterized by comprising the following elements in percentage by weight: Zr-(0-3.3%)Ti-(0-6.5%)Mo-(0-7.1%) Sn-(6.3-17.2%)Nb. The alloy has the material performances that the elastic modulus E=77-91 GPa, the magnetic susceptibility chig=2.12-3.01cm<3>g<-1>, and the hardness HV=243-311kgf.mm<-2>. The alloy has the effects and benefits that the BCC Zr-Ti-Mo-Sn-Nb alloy with low elastic modulus and low magnetic susceptibility is obtained on the basis that a Zr alloy has a single-phase BCC structure; the constituent elements of the BCC Zr-Ti-Mo-Sn-Nb alloy are reasonably added, and the BCC Zr-Ti-Mo-Sn-Nb alloy has ensured excellent alloy performances and is a low-cost alloy material; and the constituent elements of the BCC Zr-Ti-Mo-Sn-Nb alloy are non-toxic elements and harmless to human bodies, and the BCC Zr-Ti-Mo-Sn-Nb alloy can be used as a biomedical material with low magnetic susceptibility.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a biomedical BCC Zr-Ti-Mo-Sn-Nb solid solution alloy material with low elastic modulus, low magnetic susceptibility. Background technique [0002] MRI (Magnetic resonance imaging) is an important medical diagnostic technology. Its biggest advantage is that it can freely select the required section by adjusting the magnetic field, and can obtain images of parts that are inaccessible or difficult to access by other imaging techniques. However, one of its limitations is that it is impossible to diagnose people who have implanted metal materials in the body, such as stainless steel, Co-Cr alloy, Ti alloy, etc. Such materials will cause imaging distortion under strong magnetic fields, and this magnetic field disturbance is proportional to the magnetic susceptibility of the material. relevant. Currently, many surgical operations need to be performed under MRI, therefore, a biomedi...

Claims

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Application Information

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IPC IPC(8): C22C16/00C22C1/02
Inventor 王清董闯王英敏羌建兵庞厂
Owner DALIAN UNIV OF TECH
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