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Oxide dispersion reinforced platinum-based alloy and preparation method thereof

A technology of dispersion strengthening and platinum-based alloys, which is applied in the field of glass fiber manufacturing, can solve the problems of inability to fully utilize the dispersion strengthening of oxidized substances, and achieve the goals of shortening the required time, high enduring strength limit and creep limit, and improving utilization efficiency Effect

Inactive Publication Date: 2011-01-26
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This alloy material only adds a single interstitial solid solution strengthening element boron, and the boron element is not completely oxidized during the annealing process, so it cannot fully exert the effect of point dispersion strengthening of the oxide material

Method used

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  • Oxide dispersion reinforced platinum-based alloy and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0035] Using 4832.5 grams of platinum, 150 grams of rhodium, 5 grams of a master alloy composed of 99wt% platinum and 1wt% boron, and 12.5 grams of a master alloy composed of 96wt% platinum and 4wt% erbium as raw materials, in a medium frequency vacuum induction melting furnace A platinum-based multi-element alloy composed of 0.001wt% boron and 0.01wt% erbium is smelted, and the ingot of the platinum-based multi-element alloy is prepared into a powder by a special powder metallurgy method, and then the powder is kept at 700°C for 5 hours in an atmospheric atmosphere. Then, the boron-containing multi-phase oxide dispersion-strengthened platinum-based alloy material is prepared by hot pressing and hot forging.

Embodiment 2

[0037] Using 4700 grams of platinum, 150 grams of rhodium, 25 grams of a master alloy composed of 99wt% platinum and 1wt% boron, and 125 grams of a master alloy composed of 96wt% platinum and 4wt% erbium as raw materials, in a medium frequency vacuum induction melting furnace A platinum-based multi-element alloy composed of 0.005wt% boron and 0.10wt% erbium is smelted, and the ingot of the platinum-based multi-element alloy is prepared into a powder by a special powder metallurgy method, and then the powder is kept at 850°C for 4 hours in an atmospheric atmosphere. Then, the boron-containing multi-phase oxide dispersion-strengthened platinum-based alloy material is prepared by hot pressing and hot forging.

Embodiment 3

[0039] Using 4487.5 grams of platinum, 150 grams of rhodium, 50 grams of a master alloy composed of 99wt% platinum and 1wt% boron, and 312.5 grams of a master alloy composed of 96wt% platinum and 4wt% erbium as raw materials, in an intermediate frequency vacuum induction melting furnace A platinum-based multi-element alloy composed of 0.005wt% boron and 0.25wt% erbium is smelted, the ingot of the platinum-based multi-element alloy is prepared into a powder by a special powder metallurgy method, and then the powder is kept at 900°C for 4 hours in an atmospheric atmosphere. Then, the boron-containing multi-phase oxide dispersion-strengthened platinum-based alloy material is prepared by hot pressing and hot forging.

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Abstract

The invention discloses an oxide dispersion reinforced platinum-based alloy, which comprises a platinum alloy base material and a dispersion reinforcing phase dispersed in the platinum alloy base material, wherein the dispersion reinforcing phase consists of an oxide of boron, an oxide of erbium and an oxide of at least one of lanthanum and zirconium; and elements except oxygen in the dispersion reinforcing phase accounts for 0.015 to 0.8 percent of the total weight of the oxide dispersion reinforced platinum-based alloy, wherein at least 85 weight percent of dispersion reinforcing phase is dispersed in the platinum alloy matrix in a nano granule state. The invention also discloses a preparation method for the platinum alloy material. The platinum alloy material has the characteristics of excellent high-temperature mechanical property, short production period and the like, and is particularly suitable for manufacturing a porous dense large-sized glass fiber leakage plate (3,200 to 8,000 holes) and other required platinum-based high-temperature alloy structural materials.

Description

technical field [0001] The invention relates to the technical field of glass fiber manufacturing, in particular to a platinum bushing material for manufacturing glass fiber--oxide dispersion strengthened platinum-based alloy, and a preparation method thereof. Background technique [0002] At present, in the glass fiber production process, the porous close-packed platinum bushing device is generally used to draw glass fiber strands. Since the platinum bushing needs to work under the conditions of high temperature, low stress and oxidizing and corrosive medium for a long time, this requires the platinum bushing material to have good corrosion resistance and excellent high temperature mechanical properties. At present, most oxide dispersion strengthened platinum-based alloy materials are used as bushing materials for glass fiber industry, that is, some oxides are dispersed in platinum materials to enhance the beneficial properties of platinum materials. [0003] 1. Chinese pat...

Claims

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Application Information

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IPC IPC(8): C22C5/04C22C1/04
Inventor 杨宗伦刘伟廷张杰
Owner CHONGQING POLYCOMP INT
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