Multi-element nitralloy material and preparation method and application thereof

A nitriding alloy and multi-element technology, which is applied in the field of multi-element nitriding alloy materials and their preparation, can solve the problems of insufficient strengthening effect of steel properties, long microalloying process time, high comprehensive use cost, etc., and achieve comprehensive use cost The effect of reducing, reducing costs, and improving cost performance

Active Publication Date: 2016-04-06
马鞍山中科冶金材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low effective utilization rate of existing single-element nitrided alloys in molten steel microalloying, long and complicated microalloying process, insufficient and unstable strengthening effect on steel performance, and high comprehensive use cost, the present invention provides A multi-element nitrided alloy and its preparation method and application, which can improve the effective utilization rate, optimize the microalloying process, have a sufficient and stable strengthening effect on steel performance, and reduce the comprehensive use cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Select raw materials, ferro-vanadium, ferrosilicon, ferromanganese, ferrochrome and ferro-niobium and crush them into particle size ≤ 10mm; The fraction is V: 50%, C: 0.45%, Si: 2.1%, Al: 2.5%, P: 0.06%, S: 0.05%, and the balance is Fe and traces of Ca, Mg and other inevitable impurities; ferrosilicon The mass fraction of each component is Si: 75%, Mn: 0.4%, Cr: 0.2%, P: 0.15%, S: 0.06%, and the balance is Fe and traces of inevitable impurities such as C, Al, Ca, Mg; The mass fraction of each component of ferrochromium is Cr: 60%, C: 1.0%, Si: 2.6%, P: 0.05%, S: 0.04%, and the balance is Fe; the mass fraction of each component of ferro-niobium is Nb: 48%, C: 0.04%, Si: 8.7%, Al: 2.0%, S: 0.03%, P: 0.04%, the balance is Fe; the mass fraction of each component of ferromanganese is Mn: 75%, C: 3.2 %, Si: 4.5%, P: 0.2%, S: 0.3%, the balance is Fe and traces of Al, Ca, Mg and other unavoidable impurities; the above fractions are mass fractions;

[0037] (2) Proportioni...

Embodiment 2

[0042] (1) Select raw materials, ferrosilicon, ferrovanadium, ferromanganese, ferrotitanium and crush them into particle size ≤ 10mm respectively; then grind, the fineness of the fine powder ≤ 0.15mm; the mass fraction of each component of the selected ferrovanadium is V : 75%, C: 0.75%, Si: 2.5%, Al: 3.0%, P: 0.1%, S: 0.08%, the balance is Fe and traces of Ca, Mg and other inevitable impurities; the components of ferrosilicon The mass fraction is Si: 72%, Mn: 0.5%, Cr: 0.5%, P: 0.1%, S: 0.1%; the balance is Fe and traces of C, Al, Ca, Mg and other inevitable impurities; The mass fraction of each component is Ti: 72%, Al: 3.2%, Si: 1.0%, P: 0.04%, S: 0.03%, Mn: 1.5%, C: 0.30%, and the balance is Fe; The mass fraction of components is Mn: 65%, C: 5.5%, Si: 2.1%, P: 0.17%, S: 0.25%, and the balance is Fe and traces of Al, Ca, Mg and other inevitable impurities; the above fractions are quality score;

[0043] (2) Proportioning the fine powder of raw materials processed in (1), ...

Embodiment 3

[0048] (1) Select raw materials, ferro-vanadium, silicon metal, manganese metal, ferro-boron, ferrochromium, and ferro-titanium, and crush them into particle size ≤ 10mm; The mass fraction of components is V: 65%, C: 0.12%, Si: 0.8%, Al: 1.3%, P: 0.03%, S: 0.1%, and the balance is Fe and trace Ca, Mg and other inevitable impurities; The mass fraction of each component of metal silicon is: Si: 98%, Fe: 1.0%, Al: 0.6%, and the balance is trace C, Ca, Mg and other inevitable impurities; the mass fraction of each component of metal manganese is Mn : 96%, Fe: 2.5%, Si: 0.5%, C: 0.15%, P: 0.05%, S: 0.04% and trace Ca, Mg and other unavoidable impurities; the mass fraction of each component of ferroboron is B: 19%, C: 2.5%, Si: 10%, Al: 2.0%, S: 0.1%, P: 0.2%, the balance is Fe; the mass fraction of each component of ferrochromium is Cr: 52%, C: 0.6 %, Si: 3.0%, P: 0.06%, S: 0.05%, the balance is Fe; the mass fraction of each component of ferro-titanium is Ti: 68%, Al: 5.0%, Si: 0.6...

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Abstract

The invention discloses a multi-element nitralloy material and a preparation method and application thereof and belongs to the technical field of alloy material development. The multi-element nitralloy material comprises 9-48% of V, 13-45% of Si, 0.05-9% of Mn, 3.3-14% of Fe, 15-30.5% of N, 0.01-5.0% of Cr, 0.06-2.0% of Al, 0-7.0% of Ti, 0-6.5% of B, 0-4.5% of Nb, 0-1.8% of C, 0-0.1% of P, and 0-0.1% of S. According to the multi-element nitralloy material and the preparation method and application thereof, the content of nitrogen in the alloy can be effectively controlled to be within a reasonable range according to different combining capacities of various elements and the nitrogen; meanwhile, the content of the nitrogen can be adjusted within a wider range according to requirements of practical purposes, and great convenience is provided for a molten steel microalloying reinforcing technique; safety and environmental friendliness are achieved in the preparation and using process, and no smoke or dust or odor is generated.

Description

technical field [0001] The invention belongs to the field of alloy materials, and more specifically relates to a multi-element nitrided alloy material and its preparation method and application. Background technique [0002] Nitriding alloy is a kind of alloy widely used in iron and steel smelting process. In today's iron and steel production, in order to improve the strength of steel, it is necessary to add alloys such as vanadium or ferroniobium in the process of steelmaking through microalloying. achieve this effect. In order to give full play to the microalloy strengthening effect of vanadium and niobium, it is generally necessary to add an appropriate amount of nitrided alloys during steelmaking to form strong carbonitrides with microalloying elements niobium and vanadium to improve the precipitation strengthening and precipitation strengthening of microalloying elements. effect. Therefore, in iron and steel smelting, the use of nitrided alloys is more extensive. At ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/00C22C35/00
CPCC22C1/00C22C30/00C22C35/00
Inventor 陈来祥
Owner 马鞍山中科冶金材料科技有限公司
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