High-toughness strengthened steel with nanoparticles

A nano-particle, high-toughness technology, applied in the field of high-toughness reinforced steel, can solve the problem of inability to uniformly prepare high-strength, anti-oxidation, welding and processability-enhanced steel, uneven distribution of copper-rich nano-phase, and inability to effectively control nano-phase precipitation and other problems, to achieve the effect of improved strength and toughness, good toughness and uniform organization

Inactive Publication Date: 2014-11-26
QINGDAO HUA CHENG TIAN MACHINERY MFG
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] In the current existing materials and preparation technologies, the main problems are: due to the uneven distribution of copper-rich nanophases in the matrix, the precipitation of nanophases cannot be effectively controlled, and high strength, oxidation resistance, welding and processing properties cannot be uniformly prepared. well strengthened steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A high-toughness reinforced steel added with nanoparticles, comprising the following parts by weight: 46 parts of copper, 32 parts of iron powder, 17 parts of ductile iron powder, 16 parts of ethylene-vinyl acetate copolymer, 5-7 parts of acrylic resin, 17 parts of nano-silver, 14 parts of aluminum oxide, 4 parts of polyurethane, 14 parts of nano-silica, 3-8 parts of aluminum silicate, 23 parts of sand, and 19 parts of glass fiber.

Embodiment 2

[0013] A kind of high-toughness reinforced steel added with nanoparticles, including the following parts by weight: 35 parts of copper, 15 parts of iron powder, 5 parts of ductile iron powder, 14 parts of ethylene-vinyl acetate copolymer, 5 parts of acrylic resin, nano silver 9 parts, aluminum oxide 10 parts, polyurethane 3 parts, nano silicon oxide 11 parts, aluminum silicate 3 parts, sand 12 parts, glass fiber 15 parts.

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PUM

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Abstract

The invention discloses high-toughness strengthened steel with nanoparticles. The strengthened steel is characterized by comprising the following substances by weight: 35 to 46 parts of copper, 15 to 32 parts of iron powder, 5 to 17 parts of nodular cast iron powder, 14 to 16 parts of an ethylene-vinyl acetate copolymer, 5 to 7 parts of an acrylic resin, 9 to 17 parts of nano-silver, 10 to 14 parts of alumina, 3 to 4 parts of polyurethane, 11 to 14 parts of nanometer silicon oxide, 3 to 8 parts of aluminum silicate, 12 to 23 parts of sand and 15 to 19 parts of a glass fiber. The strengthened steel provided by the invention has good toughness, a uniform structure and improved strength and toughness and meets requirements on strong toughness.

Description

technical field [0001] The invention relates to a high-toughness strengthened steel added with nanoparticles. Background technique [0002] In order to improve the thermal efficiency of thermal power generation and reduce CO2 emissions, it is an important trend in the development of the world's power industry to vigorously develop high-parameter, large-capacity ultra-supercritical (USC) power plants. However, the low-alloy ferritic steel, 9%-12% Cr-type martensitic steel and common 18 / 8-type austenitic steel commonly used in power stations in my country cannot meet the requirements in terms of high-temperature strength or oxidation resistance. , only the development of new austenitic heat-resistant steels with good high-temperature performance and relatively low cost can meet the needs of ultra-supercritical power plants for high-temperature materials. After years of research and development, a variety of austenitic heat-resistant steels have been developed and applied. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/08C22C101/06
Inventor 李松
Owner QINGDAO HUA CHENG TIAN MACHINERY MFG
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