High-strength high-plasticity copper-containing high-carbon TWIP steel and preparation process thereof

A high-plasticity, high-strength technology, applied in the field of alloy steel structure, can solve the problems of difficult removal of Cu, increase the economic cost of steel, increase the difficulty of production, etc., achieve the effect of optimizing performance, reducing the difficulty and cost of steelmaking, and broad application potential
CN101956134BInactive Publication Date: 2012-08-08FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2012-08-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to high-strength high-plasticity copper-containing high-carbon TWIP steel and a preparation process thereof. In the preparation process, the carbon content is improved on the basis of Fe-Mn-C series TWIP steel, a non-carbide forming element Cu and rare earth Ce serving as alloying elements are added into the steel, and a solution treatment process at the high temperature of between 900 and 1,050 DEG C and a hot rolling process are combined, so that gap defects in an ingot structure are reduced and the intrinsic strength and plasticity of the high-carbon copper-containingTWIP steel are fully exerted. The prepared alloy steel has the outstanding characteristic that product of strength and plasticity for reflecting the comprehensive mechanical property of the alloy steel is obviously improved; the yield strength of the alloy steel is 513.7MPa, the tensile strength is 1,223.7MPa, the elongation is 86.8 percent, and the product of strength and plasticity reaches 106,217.2MPa. percent which is 20 percent higher than highest data 87,882MPa. percent of multiple kinds of TWIP steel reported by domestic and foreign documents at present; and novel high-strength high-toughness steel is prepared for the mechanical manufacturing industry and equipment industry.
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Description

technical field

[0001] The invention belongs to the field of alloy steel structures, and more specifically relates to a high-strength, high-plasticity copper-containing high-carbon TWIP steel and a preparation process thereof. Background technique

[0002] With the rapid development of the modern economy, users of steel materials have put forward higher requirements for the performance and technical indicators of steel materials. In the new century, construction machinery, ships, weapons and equipment, large storage containers, hydropower and thermal power energy equipment, and high-rise buildings all require new steel materials with high performance, long service life and low cost. And with the further development of society, the production, processing and use of steel materials have also put forward the requirements of resource saving, energy saving and environmental protection. Therefore, the development of advanced steel materials has become an urgent need for economic ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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