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A kind of Ni base alloy/ceramic composite material and preparation method thereof

A ceramic composite material and base alloy technology, applied in the field of composite materials, can solve the problems of high sintering temperature and poor friction and wear performance in the preparation process, and achieve the effects of good self-lubricating performance, good friction and wear performance, and shortening production cycle

Inactive Publication Date: 2018-08-07
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of poor friction and wear properties of existing Ni-based alloys at room temperature to 600°C and high sintering temperature in existing preparation processes. The present invention provides a Ni-based alloy / ternary Layered MAX phase ceramic composite material and preparation method thereof

Method used

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  • A kind of Ni base alloy/ceramic composite material and preparation method thereof
  • A kind of Ni base alloy/ceramic composite material and preparation method thereof
  • A kind of Ni base alloy/ceramic composite material and preparation method thereof

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specific Embodiment approach 1

[0038] Specific embodiment one: the material prepared in this embodiment is Ni-based alloy / Cr 2 AlC composite material, the formula of this material is the nickel powder of 64wt.%, the chromium powder of 16wt.% and the Cr of 20wt.% 2 AlC.

[0039] Both Ni powder and Cr powder in this embodiment are commercially available products. Among them, Ni powder and Cr powder are produced by Beijing Haoyun Jinneng Technology Co., Ltd., the particle size of Ni powder is 1-1.5 μm, and the particle size of Cr powder is 40-50 μm.

[0040] The preparation method of this specific example is as follows.

[0041] Step 1: Add Cr 2 The AlC block is crushed, rolled repeatedly to obtain a powder, and passed through a 100-mesh sieve to obtain a ternary layered MAX phase ceramic powder with a suitable particle size.

[0042] Step 2: by mass percentage, the nickel powder of 64wt.%, the chromium powder of 16wt.% and the Cr of 20wt.% 2 Put the AlC powder into a polytetrafluoroethylene ball mill jar...

specific Embodiment 2

[0048] Specific embodiment two: the Ni-based alloy / ternary layered MAX phase ceramic composite material in this embodiment is by mass percentage 64wt.% of nickel powder, 16wt.% of chromium powder and 20wt.% of Ti 3 SiC 2 Composition, the method for preparing this material is with specific embodiment one.

specific Embodiment 3

[0049] Specific embodiment three: the ternary layered MAX phase ceramic material used in this embodiment is Ti 3 AlC 2 , other parameters and preparation steps are the same as those in Example 1.

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Abstract

The invention relates to a composite material, in particular to a Ni-base alloy / ceramic composite material and a preparing method thereof. The Ni-base alloy / ceramic composite material is composed of Ni-base alloy and ternary layered MAX-phase ceramic, wherein M is a transition group element, A is mainly a IIIA group element and a IVA group element, and X is C or N. The friction coefficient of the Ni-base alloy / ternary layered MAX-phase ceramic composite material is 0.40-0.50 at the room temperature and 0.35-0.40 at the temperature of 600 DEG C. The friction coefficient of the Ni-base alloy / ternary layered MAX-phase ceramic composite material is basically identical with the friction coefficient of existing Ni-base high temperature alloy. The abrasion rates of the Ni-base alloy / ternary layered MAX-phase ceramic composite material at the room temperature and at the temperature of 600 DEG C are both in the order of magnitude of 10<-5> mm3 / N.m, and are far less than the abrasion rate of the existing Ni-base high temperature alloy.

Description

technical field [0001] The invention relates to composite materials, in particular to a Ni-based alloy / ceramic composite material and a preparation method thereof. Background technique [0002] Ni-based alloys are a type of alloys with comprehensive properties such as high strength and certain oxidation and corrosion resistance at high temperatures of 650-1000 °C, and their main components are Ni-Cr superalloys. Ni-based alloys are suitable for working at high temperatures for a long time, and have excellent comprehensive properties at medium and high temperatures. They are extremely important for aerospace materials to reduce friction loss between aircraft and prolong the life of aircraft. The friction performance is poor, and the friction coefficient and wear rate are high. [0003] The friction coefficient of Ni-based alloys strongly depends on the service conditions. At room temperature, the friction coefficient is between 0.5 and 0.6, and the wear rate is 10 -4 mm 3 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/05C22C32/00C22C1/05
CPCB22F3/105B22F2998/10C22C1/05C22C19/058C22C32/0052C22C32/0068B22F1/0003B22F3/02
Inventor 李玉峰李新亮张心培
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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