Nitrogen-oxygen alloying ti-based amorphous alloy and preparation method thereof

A technology of amorphous alloy and nitrogen-oxygen alloy, which is applied in the field of designing metal materials and its preparation, to achieve the effects of convenient preparation, safe use, and excellent compression plasticity

Active Publication Date: 2016-03-23
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But alloying often means sacrificing cost, specific strength and environmental friendliness

Method used

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  • Nitrogen-oxygen alloying ti-based amorphous alloy and preparation method thereof
  • Nitrogen-oxygen alloying ti-based amorphous alloy and preparation method thereof
  • Nitrogen-oxygen alloying ti-based amorphous alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n o q Preparation and Properties of Amorphous Alloys

[0035] 1. Composition design and preparation of bulk amorphous alloys

[0036] Design (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n o q Amorphous alloy composition, where n = 99.95, 99.9, 99.8, 99.7, 99.5, corresponding to q = 0.05, 0.1, 0.2, 0.3 and 0.5, respectively, with O-0.05, O-0.1, O-0.2, O-0.3 and O-0.5 to represent. At the same time, in order to reflect the effect of adding oxygen on the amorphous alloy, the inventor also designed and prepared an oxygen-free Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 The alloy is used as a reference, which is expressed as Basealloy in this article. This alloy is only used as a reference alloy, but it is not within the scope of this patent requirement, and is hereby explained. The composition of the designed alloy is shown in Table 1.

[0037] (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n o q The preparation process of the amorphous alloy sy...

Embodiment 2

[0060] (Ti 42.5 Cu 40 Zr 10 Ni 5sn 2.5 ) n N p Preparation and Properties of Amorphous Alloys

[0061] 1. Composition design and preparation of bulk amorphous alloys

[0062] Design (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n N p The composition of the amorphous alloy, where n=99.95, 99.9, 99.8, 99.7, respectively correspond to p=0.05, 0.1, 0.2 and 0.3, are represented by N-0.05, N-0.1, N-0.2 and N-0.3 respectively. The composition of the designed alloy is shown in Table 4.

[0063] (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n N p The preparation process of the amorphous alloy system is as follows:

[0064] (1) raw material preparation: the smelting raw material that the present invention adopts is high-purity (≥99.9%) Ti, Zr, Cu, Ni and Sn element, removes the scale of raw material surface, carries out weighing proportioning according to molar ratio, in alcohol It is cleaned by ultrasonic vibration and used for smelting alloys. N element is directly added in the form ...

Embodiment 3

[0083] (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n N p o q The preparation and formation ability of amorphous alloy.

[0084] 1. Composition design and preparation of bulk amorphous alloys

[0085] Design (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n N p o q Amorphous alloy composition, where p+q=0.2, 0.3, 0.4 and 0.5, q:p=3:1, 4:1, 5:1 and 6:1, where n+p+q=100, respectively with O : N=3:1, 0.2; O: N=3:1, 0.3; O: N=3:1, 0.4; O: N=3:1, 0.5; O: N=4:1, 0.2; O :N=4:1,0.3,O:N=4:1,0.4,O:N=4:1,0.5,O:N=5:1,0.2,O:N=5:1,0.3,O : N=5:1,0.4, O:N=5:1,0.5, O:N=6:1,0.2, O:N=6:1,0.3, O:N=6:1,0.4 and O : N=6:1, 0.5 to represent.

[0086] (Ti 42.5 Cu 40 Zr 10 Ni 5 sn 2.5 ) n N p o q The preparation process of the amorphous alloy system is as follows:

[0087] (1) raw material preparation: the smelting raw material that the present invention adopts is high-purity (≥99.9%) Ti, Zr, Cu, Ni and Sn element, removes the scale of raw material surface, carries out weighing proportioning accor...

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Abstract

The invention discloses nitrogen-oxygen alloying ti-based amorphous alloy and a preparation method thereof. The atomic percentage expression of the amorphous alloy is (TiaCubZrcNidSne) nNpOq, and the components of the amorphous alloy meet the conditions that a is greater than 20 and less than or equal to 60, b is greater than 0 and less than or equal to 60, c is greater than 0 and less than or equal to 50, d is greater than 0 and less than or equal to 50, e is greater than 0 and less than or equal to 50, n is greater than or equal to 90 and less than 100, p is greater than or equal to 0 and less than or equal to 5, q is greater than or equal to 0 and less than or equal to 5, a+b+c+d+e=100, and n+p+q=100. The preparation method comprises the steps that raw metal materials Ti, Cu, Zr, Ni and Sn are weighed according to the molar ratio; after nitride and oxide are added simultaneously, smelting is carried out in a non-self-consuming vacuum arc furnace or a cold crucible shower furnace; the alloy is obtained through suction casting or pouring. According to the nitrogen-oxygen alloying ti-based amorphous alloy and the preparation method thereof, by adding one or two elements of N and O, the amorphous forming ability and compressive plasticity of the amorphous alloy is improved; the maximum critical dimension is 5 mm, the compressive strength is over 2000 MPa, and the breaking strain is more than 5.7%.

Description

technical field [0001] The invention belongs to the field of design metal materials and their preparation, and provides a nitrogen-oxygen alloyed titanium-based amorphous alloy and a preparation method thereof. Background technique [0002] Amorphous alloy (metallic glass) is a new type of metal material with special atomic arrangement and excellent performance. Different from the long-range ordered atomic arrangement of traditional metal materials, the atomic arrangement of amorphous alloys has the structural characteristics of long-range disorder and short-range order, and there are no defects such as grain boundaries and dislocations in its microstructure. Therefore, amorphous alloys exhibit excellent properties such as high strength, high hardness, high elastic limit, low modulus, and corrosion resistance that cannot be compared with traditional crystalline alloys, and are expected to become a new generation of structural and functional metal materials with broad applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10
Inventor 吕昭平曹迪王辉吴渊刘雄军雷智锋
Owner UNIV OF SCI & TECH BEIJING
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