WO2016107517A1 - Acier allié hautement résistant à l'usure pour cœur de voie ferrée et son procédé de fabrication - Google Patents

Acier allié hautement résistant à l'usure pour cœur de voie ferrée et son procédé de fabrication Download PDF

Info

Publication number
WO2016107517A1
WO2016107517A1 PCT/CN2015/099190 CN2015099190W WO2016107517A1 WO 2016107517 A1 WO2016107517 A1 WO 2016107517A1 CN 2015099190 W CN2015099190 W CN 2015099190W WO 2016107517 A1 WO2016107517 A1 WO 2016107517A1
Authority
WO
WIPO (PCT)
Prior art keywords
alloy steel
resistant alloy
high wear
ppm
mass percentage
Prior art date
Application number
PCT/CN2015/099190
Other languages
English (en)
Chinese (zh)
Inventor
文超
董雯
梁会雷
陈亮
Original Assignee
中车戚墅堰机车车辆工艺研究所有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中车戚墅堰机车车辆工艺研究所有限公司 filed Critical 中车戚墅堰机车车辆工艺研究所有限公司
Publication of WO2016107517A1 publication Critical patent/WO2016107517A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

Definitions

  • the invention belongs to the field of alloy steel and a manufacturing method thereof, and relates to a high-performance alloy steel, in particular to a high wear-resistant alloy steel for railway frogs and a manufacturing method thereof.
  • the high-speed heavy-duty railway has extremely severe operating conditions for the ballast equipment due to its large axle weight, high density and large traffic conditions, which makes the wear and damage of the forks and other parts of the ballast far greater than the same type of ordinary line.
  • Turns. With the further development of rail transportation to heavy loads, active high manganese steel frogs have become increasingly difficult to meet their needs. For forks with poor service conditions (especially for the split core and wing rails), not only must they have sufficient hardness and strength, but also sufficient toughness to improve their wear resistance.
  • the technical requirements for the relevant indicators of commercial alloy steel frogs are as follows (see “Technical Conditions for Alloy Steel Axle Combination Bifurcation (Provisional)” in Document No.
  • R m ⁇ 1240MPa R m ⁇ 1240MPa, ⁇ KU (room temperature) ⁇ 70J / cm 2, ⁇ KU (-40 °C) ⁇ 35J / cm 2, hardness 38 ⁇ 45HRC.
  • a typical commercial frog is selected for testing, and its composition and mass percentage ratio: C 0.25, Si 2.08, Mn 1.69, P 0.008, S 0.002, Cr 1.40, Ni 0.30, Mo 0.28, Al 0.03, Nb 0.01, O 18 ppm, N 74 ppm, H 0.39 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were as follows: R m was 1263 MPa, R p0.2 was 1020 MPa, hardness was 39.5 HRC to 42.0 HRC, ⁇ KU (room temperature) was 74 J/cm 2 , and ⁇ KU (-40 ° C) was 37 J/cm. 2 .
  • CN100449027C discloses a wear-resistant steel suitable for railway ballasts, which uses Si-Mn-Cr-Mo-based alloying elements and adds V and Ti refined grains, and the manufacturing process is improved to some extent by a deformation heat treatment process. The quality stability of the frog and the production cost are reduced, but its hardness and impact toughness are not very superior.
  • CN1166804C discloses a super high-toughness weldable air-cooled Hongkang bainitic steel for railway frogs and a manufacturing method thereof, which adopts Mn and Si as main alloy elements, supplemented with elements such as Cr, Ni, Mo, and Ti, V and Nb are refined grain elements, and the ordinary smelting method is adopted for manufacturing.
  • Mn and Si are the main additive elements, segregation of Mn is inevitable in the smelting process, resulting in uneven cross-sectional performance.
  • the stability of the intrinsic quality is poor, and at the same time, due to the large addition of Si, a large amount of oxidation of the surface of the workpiece during forging and heat treatment is caused, thereby wasting material and increasing processing cost.
  • the object of the present invention is to provide a high wear-resistant alloy steel for railway frogs, which is a high-strength, high-hardness, high-toughness wear-resistant steel, and is particularly suitable for high-speed heavy-duty railway frogs.
  • a high wear-resistant alloy steel for railway frogs the components and their mass percentages are as follows: C 0.29% to 0.45%, Si 0.20% to 0.59%, Mn 0.90% to 1.51%, P ⁇ 0.015%, S ⁇ 0.010%, Cr 1.52% ⁇ 1.79%, Ni 1.01% ⁇ 1.49%, Mo 0.29% ⁇ 0.59%, Al 0.02% ⁇ 0.07%, Nb 0.025% ⁇ 0.10%, 0.05% ⁇ Nb+Al ⁇ 0.15%, [O] ⁇ 20 ppm, [N] ⁇ 100 ppm, [H] ⁇ 0.50 ppm, and the balance is iron and unavoidable impurities.
  • a method for manufacturing a high wear-resistant alloy steel for a railway yoke includes the following steps: electric arc furnace smelting ⁇ ladle furnace refining ⁇ vacuum furnace degassing ⁇ die casting ⁇ initial rolling Blank ⁇ forging type ⁇ dehydrogenation heat treatment ⁇ final heat treatment; wherein the forging type adopts free forging and die forging, and the final heat treatment includes controlled cooling after 0.1 ° C / s to 0.8 ° C / s after austenitizing, after cooling to room temperature Re-tempering.
  • the wear-resistant alloy steel of the present invention has a carbon content of 0.29% to 0.45% to ensure excellent hardness and strength properties of the alloy steel of the present invention, and has very high toughness and good weldability.
  • the addition of alloying elements Mn, Cr, Ni, Mo and its suitable ratio can effectively improve the strength, hardness and toughness of the alloy steel, and ensure the uniformity of structure and performance of the entire part cross section. And consistency.
  • the addition of alloying elements Al and Nb and their suitable ratio selection can effectively inhibit austenite grain growth during forging and heat treatment, refine grains and improve the strength, ductility and toughness of the alloy steel.
  • the high wear-resistant alloy steel for railway frogs adopts the addition of C, Mn, Cr, Ni, Mo, Al, Nb and the appropriate ratio selection thereof, thereby effectively improving the resistance.
  • Strength, hardness and toughness properties of steel Compared with the prior art, the high wear-resistant alloy steel for railway frogs according to the present invention adopts the addition of C, Mn, Cr, Ni, Mo, Al, Nb and the appropriate ratio selection thereof, thereby effectively improving the resistance.
  • Strength, hardness and toughness properties of steel are examples of steel.
  • the manufacturing method of the present invention adopts a system control method of smelting, forging and heat treatment, which can reduce segregation of alloying elements of steel ingots, and improve uniformity of cross-section performance and stability of intrinsic quality of forgings.
  • the mechanical performance index of the high wear-resistant alloy steel for railway frogs of the present invention is as follows: R m ⁇ 1605 MPa, R p0.2 ⁇ 1300 MPa, hardness ⁇ 48 HRC, ⁇ KU (room temperature) ⁇ 100 J/cm 2 , ⁇ KU (-40 ° C) ) ⁇ 70J/cm 2 .
  • the mechanical properties of the high wear-resistant alloy steel for the railway frog of the present invention have a significant increase.
  • the alloy steel of the present invention has high strength, high hardness and high toughness performance characteristics, and is particularly suitable for the demand of high speed heavy-duty railway frogs, and has the characteristics of high service life, easy manufacture, and easy assembly and use.
  • a high wear-resistant alloy steel for railway frogs characterized in that each component and its mass percentage are as follows: C 0.29% to 0.45%, Si 0.20% to 0.59%, Mn 0.90% to 1.51%, P ⁇ 0.015%, S ⁇ 0.010%, Cr 1.52% to 1.79%, Ni 1.01% to 1.49%, Mo 0.29% to 0.59%, Al 0.02% to 0.07%, Nb 0.025% to 0.10%, 0.05% ⁇ Nb + Al ⁇ 0.15%, [O] ⁇ 20 ppm, [N] ⁇ 100 ppm, [H] ⁇ 0.50 ppm, and the balance is iron and unavoidable impurities.
  • each component and its mass percentage are as follows: C 0.29% to 0.34%, Si 0.20% to 0.59%, and Mn 1.01% to 1.51%. , P ⁇ 0.015%, S ⁇ 0.010%, Cr 1.52% to 1.79%, Ni 1.21% to 1.49%, Mo 0.35% to 0.59%, Al 0.02% to 0.07%, Nb 0.025% to 0.10%, 0.05% ⁇ Nb +Al ⁇ 0.15%, [O] ⁇ 20 ppm, [N] ⁇ 100 ppm, [H] ⁇ 0.50 ppm, and the balance is iron and unavoidable impurities.
  • the high wear-resistant alloy steel according to the first aspect characterized in that each component and its mass percentage are as follows: C 0.35% to 0.39%, Si 0.20% to 0.59%, and Mn 0.90% to 1.51%. , P ⁇ 0.015%, S ⁇ 0.010%, Cr 1.52% to 1.79%, Ni 1.01% to 1.49%, Mo 0.29% to 0.59%, Al 0.02% to 0.07%, Nb 0.025% to 0.10%, 0.05% ⁇ Nb +Al ⁇ 0.15%, [O] ⁇ 20 ppm, [N] ⁇ 100 ppm, [H] ⁇ 0.50 ppm, and the balance is iron and unavoidable impurities.
  • the high wear-resistant alloy steel according to any one of claims 1 to 8, characterized in that the mechanical properties of the high wear-resistant alloy steel are as follows: R m ⁇ 1605 MPa, R p0.2 ⁇ 1300 MPa, hardness ⁇ 48 HRC, ⁇ KU (room temperature) ⁇ 100 J/cm 2 , ⁇ KU (-40 ° C) ⁇ 70 J/cm 2 .
  • the method for producing a high wear-resistant alloy steel for railway frog according to any one of claims 1 to 9, characterized in that the manufacturing method comprises the following steps in sequence: electric arc furnace smelting ⁇ Ladle furnace refining ⁇ vacuum furnace degassing ⁇ die casting ⁇ initial rolling blanking ⁇ forging type ⁇ dehydrogenation heat treatment ⁇ final heat treatment; wherein the forging type adopts free forging and die forging, and the final heat treatment includes 0.1°C after austenitizing Control cooling after /s ⁇ 0.8 ° C / s, cool to room temperature and then tempered.
  • Item 11 The method for producing a high wear-resistant alloy steel according to claim 10, wherein the final heat treatment comprises austenitizing at 890 ° C to 980 ° C and then air cooling to room temperature, and the cooling rate is 0.3 ° C / s ⁇ 0.5 ° C / s; then tempering at 160 ° C ⁇ 550 ° C.
  • the unavoidable impurities described in this application refer to impurities that cannot be completely smelted and removed in scrap steel or ore during smelting, such as trace elements such as As, Sn, Pb, Sb, Bi, etc.
  • the content of these elements usually needs to be controlled.
  • Sn ⁇ 0.01%, Pb ⁇ 0.01%, Sb ⁇ 0.01%, Bi ⁇ 0.01% if these elements are too high, it will have a certain adverse effect on the toughness properties in the product.
  • Electric arc furnace smelting through oxidation and reduction refining, remove P and S, remove oxygen, nitrogen and hydrogen, remove inclusions, control and adjust chemical composition, and obtain relatively pure molten steel.
  • Ladle furnace refining pour the pure molten steel obtained by electric arc furnace smelting into a ladle furnace for refining, further precise control of chemical composition, removal of S and gas.
  • Vacuum furnace degassing Pour the purer molten steel adjusted by the ladle furnace into the vacuum furnace, oxygen, decarburization, vacuum degassing, fine tuning of the alloy composition under vacuum, and obtain the final chemical composition with precise control. Pure molten steel (qualified means that it meets the requirements of the technical solution of this application).
  • Molding Pour qualified pure molten steel into the ingot type, control the cooling rate of the ingot type to obtain a dense, relatively uniform and less segregated steel ingot, ready for rolling. Bottom casting is used during the molding process.
  • Forging type The initial rolled billet is subjected to preliminary free forging, and the final forging is performed by die forging.
  • Dehydrogenation heat treatment The forged piece is subjected to dehydrogenation treatment to greatly improve the impact toughness of the forging.
  • Final heat treatment The forged piece after the dehydrogenation heat treatment is subjected to the final heat treatment of the structure and properties.
  • the elements to be adjusted are determined by measuring the content of each component in the raw material before the electric arc furnace is smelted, and elemental adjustment and dehydrogenation heat treatment are performed by electric arc furnace smelting, ladle furnace refining, and vacuum furnace degassing. Further, hydrogen is removed to adjust the components of the high-wear-resistant alloy steel for railway skewers of the present invention to an appropriate range.
  • the process parameters of the electric arc furnace smelting, ladle refining and vacuum degassing in the present invention are process parameters commonly used in the art, and those skilled in the art are regulated according to the common knowledge in the art and the desired group distribution ratio.
  • the raw material for preparing the high wear-resistant alloy steel for railway frogs of the present invention is generally scrap steel.
  • the final heat treatment may include air cooling to room temperature after austenitizing at 890 ° C to 980 ° C, wherein the austenitizing heat holding time is determined according to the effective thickness of the product, generally 25 mm The thickness was heated for 1 hour to calculate the holding time.
  • the cooling rate is from 0.3 ° C / s to 0.5 ° C / s, and then tempered at 160 ° C ⁇ 550 ° C, preferably 300 ° C ⁇ 450 ° C, wherein the tempering temperature is determined according to performance requirements, tempering heating and holding time according to the product Depending on the effective thickness, it is generally possible to heat the thickness of 25 mm for 1.5 hours to calculate the holding time.
  • the final heat treatment may include air cooling to room temperature after austenitizing at 890 ° C to 980 ° C, wherein the austenitizing heating and holding time is determined according to the effective thickness of the product, generally according to 25 mm.
  • the thickness was heated for 1 hour to calculate the holding time.
  • the cooling rate is from 0.5 ° C / s to 0.8 ° C / s, and then tempered at 160 ° C ⁇ 550 ° C, preferably 300 ° C ⁇ 450 ° C, wherein the tempering temperature is determined according to performance requirements, tempering heating and holding time according to the product
  • the heating time is generally calculated by heating for 1.5 hours at a thickness of 25 mm.
  • the component contents are all based on their mass percentage.
  • the standard for determining the tensile properties at room temperature is GB/T228-2002 "Metal Material Tensile Test Method”
  • the standard for the measurement of impact properties is GB/T229-2007 "Metal Material Charpy Pendulum” Impact test method
  • the standard used for the conversion method of ⁇ KU is GB/T229-1984 "Metal Charpy (U-notch) impact test method”
  • the hardness test is based on GBT 230.1-2009 metal material Rockwell hardness test Part 1: Test methods (A, B, C, D, E, F, G, H, K, N, T scales).
  • scrap steel as raw material, firstly determine the components and content of the raw steel, and according to the components required for the target high wear-resistant air-cooled steel and the mass percentage thereof, the raw steel and other raw materials used for the furnishing, such as various ore particles.
  • the pure molten steel obtained by the electric arc furnace smelting is poured into a ladle furnace for refining, and the chemical composition is further precisely controlled to further remove S and gas.
  • the forged piece after dehydrogenation heat treatment is subjected to final heat treatment of microstructure and properties, and the final heat treatment includes austenitizing at 890 ° C to 980 ° C, then air cooling to room temperature, and the cooling rate is 0.3 ° C / s to 0.5 ° C / s, and then
  • the tempering is carried out at 300 ° C to 450 ° C to obtain the high wear-resistant alloy steel of the present invention, and the components thereof and their mass percentage ratios are: C 0.30, Si 0.52, Mn 1.27, P 0.007, S 0.004, Cr 1.64, Ni 1.29, Mo 0.44, Al 0.07, Nb 0.04, O 18 ppm, N 76 ppm, H 0.36 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1685 MPa, R p0.2 was 1367 MPa, hardness was 51.5 HRC, ⁇ KU (room temperature) was 134 J/cm 2 , and ⁇ KU (-40 ° C) was 92 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.29, Si 0.45, Mn 1.51, P 0.006, S 0.006, Cr 1.67, Ni 1.47. Mo 0.41, Al 0.05, Nb 0.10, O 18 ppm, N 79 ppm, H 0.43 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1701 MPa, R p0.2 was 1370 MPa, hardness was 52.0 HRC, ⁇ KU (room temperature) was 112 J/cm 2 , and ⁇ KU (-40 ° C) was 79 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.38, Si 0.20, Mn 1.29, P 0.009, S 0.004, Cr 1.75, Ni 1.01. Mo 0.56, Al 0.07, Nb 0.08, O 15 ppm, N 78 ppm, H 0.42 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were as follows: R m was 1723 MPa, R p0.2 was 1384 MPa, hardness was 52.5 HRC, ⁇ KU (room temperature) was 137 J/cm 2 , and ⁇ KU (-40 ° C) was 93 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.33, Si 0.59, Mn 1.01, P 0.009, S 0.001, Cr 1.61, Ni. 1.22, Mo 0.57, Al 0.06, Nb 0.09O 20 ppm, N 75 ppm, H 0.46 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1719 MPa, R p0.2 was 1377 MPa, hardness was 52.5 HRC, ⁇ KU (room temperature) was 138 J/cm 2 , and ⁇ KU (-40 ° C) was 94.5 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.39, Si 0.21, Mn 1.36, P 0.008, S 0.004, Cr 1.72, Ni 1.21 Mo 0.29, Al 0.07, Nb 0.07, O 14 ppm, N 77 ppm, H 0.41 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1625 MPa, R p0.2 was 1321 MPa , hardness was 50.5 HRC, ⁇ KU (room temperature) was 145 J/cm 2 , and ⁇ KU (-40 ° C) was 101 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.29, Si 0.30, Mn 1.32, P 0.009, S 0.002, Cr 1.79, Ni 1.24. Mo 0.59, Al 0.02, Nb 0.03, O 20 ppm, N 98 ppm, H 0.35 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were as follows: R m was 1653 MPa, R p0.2 was 1331 MPa, hardness was 51.0 HRC, ⁇ KU (room temperature) was 129 J/cm 2 , and ⁇ KU (-40 ° C) was 88 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.37, Si 0.39, Mn 1.17, P 0.007, S 0.003, Cr 1.54, Ni 1.26. Mo 0.36, Al 0.04, Nb 0.05, O 19 ppm, N 65 ppm, H 0.33 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1631 MPa, R p0.2 was 1323 MPa, hardness was 50.5 HRC, ⁇ KU (room temperature) was 141 J/cm 2 , and ⁇ KU (-40 ° C) was 99 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.38, Si 0.47, Mn 0.92, P 0.007, S 0.001, Cr 1.55, Ni 1.49. Mo 0.37, Al 0.06, Nb 0.06, O 16 ppm, N 82 ppm, H 0.41 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1709 MPa, R p0.2 was 1374 MPa, hardness was 52.0 HRC, ⁇ KU (room temperature) was 114 J/cm 2 , and ⁇ KU (-40 ° C) was 83 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.36, Si 0.41, Mn 1.34, P 0.008, S 0.002, Cr 1.52, Ni 1.08. Mo 0.47, Al 0.06, Nb 0.08, O 17 ppm, N 98 ppm, H 0.45 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1701 MPa, R p0.2 was 1369 MPa, hardness was 52.0 HRC, ⁇ KU (room temperature) was 119 J/cm 2 , and ⁇ KU (-40 ° C) was 91 J/cm 2 .
  • the high wear-resistant alloy steel for railway frogs was prepared by the method described in Example 1, and its components and their mass percentage ratios were: C 0.45, Si 0.24, Mn 0.90, P 0.006, S 0.001, Cr 1.58, Ni 1.05. Mo 0.45, Al 0.07, Nb 0.03, O 16 ppm, N 88 ppm, H 0.35 ppm, the balance being iron and unavoidable impurities.
  • the mechanical properties were found to be: R m was 1629 MPa, R p0.2 was 1321 MPa , hardness was 50.5 HRC, ⁇ KU (room temperature) was 142 J/cm 2 , and ⁇ KU (-40 ° C) was 103 J/cm 2 .
  • the smelting and forging method of the first embodiment is repeated to prepare a high wear-resistant alloy steel for railway frogs, and is particularly suitable for high wear-resistant alloy steel for a rail ⁇ fork of a specification type of 60 Kg/m, and a final heat treatment and a 75 Kg/m frog.
  • the difference is that after austenitizing at 890 ° C to 980 ° C, air cooling to room temperature, the cooling rate is from 0.5 ° C / s to 0.8 ° C / s; and then tempered at 160 ° C ⁇ 550 ° C.
  • the mechanical properties of the high wear-resistant alloy steel for railway frogs were as follows: R m was 1701 MPa, R p0.2 was 1373 MPa, hardness was 52.0 HRC, ⁇ KU (room temperature) was 115 J/cm 2 , ⁇ KU (- 40 ° C) was 81 J/cm 2 .
  • a set of high wear-resistant alloy steel for high-speed heavy-duty railway frogs was prepared by the method described in Example 1, and its composition and mass percentage were as shown in Table 1 below.
  • the mechanical properties of the high wear-resistant alloy steel in this set of examples can meet the following requirements: R m ⁇ 1605MPa, R p0.2 ⁇ 1300MPa, hardness ⁇ 48HRC, ⁇ KU (room temperature) ⁇ 100J/cm 2 , ⁇ KU (-40 ° C) ⁇ 70 J / cm 2 .
  • the specific results are shown in Table 2.
  • Table 1 Composition and mass percentage ratio of high wear-resistant alloy steel for railway frogs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne un acier à résistance élevée et résistant à l'usure pour cœur de voie ferrée et son procédé de fabrication, la composition de l'acier résistant à l'usure étant : de 0,29 % à 0,45 % de C, de 0,20 % à 0,59 % de Si, de 0,90 % à 1,51 % de Mn, P ≤ 0,015 %, S ≤ 0,010 %, de 1,52 % à 1,79 % de Cr, de 1,01 % à 1,49 % de Ni, de 0,29 % à 0,59 % de Mo, de 0,02 % à 0,07 % de Al, de 0,025 % à 0,10 % de Nb, 0,05 % ≤ Nb + Al ≤ 0,15 %, [O] ≤ 20 ppm, [N] ≤ 100 ppm et [H] ≤ 0,50 ppm, le reste étant du fer et des impuretés inévitables.
PCT/CN2015/099190 2014-12-30 2015-12-28 Acier allié hautement résistant à l'usure pour cœur de voie ferrée et son procédé de fabrication WO2016107517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410850244.9 2014-12-30
CN201410850244.9A CN104561829B (zh) 2014-12-30 2014-12-30 一种铁路辙叉用高耐磨钢及其制造方法

Publications (1)

Publication Number Publication Date
WO2016107517A1 true WO2016107517A1 (fr) 2016-07-07

Family

ID=53078893

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/099190 WO2016107517A1 (fr) 2014-12-30 2015-12-28 Acier allié hautement résistant à l'usure pour cœur de voie ferrée et son procédé de fabrication

Country Status (2)

Country Link
CN (1) CN104561829B (fr)
WO (1) WO2016107517A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114082987A (zh) * 2021-10-14 2022-02-25 西安建筑科技大学 用于增材制造高锰钢辙叉与铁路用钢轨梯度结构设计方法
CN115233089A (zh) * 2022-05-16 2022-10-25 季华实验室 一种柔轮用特殊钢及其制备工艺
CN115652045A (zh) * 2022-08-26 2023-01-31 刘澄 一种高耐磨抗冲击Fe-Cr-Mn-Si-Mo-C-N合金粉碎机锤头的制备方法
CN115852116A (zh) * 2022-12-15 2023-03-28 攀钢集团攀枝花钢铁研究院有限公司 深硬化辙叉用钢的生产方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104561829B (zh) * 2014-12-30 2017-05-24 中车戚墅堰机车车辆工艺研究所有限公司 一种铁路辙叉用高耐磨钢及其制造方法
WO2021009543A1 (fr) * 2019-07-16 2021-01-21 Arcelormittal Procédé de production de pièce en acier et pièce en acier

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374322A (en) * 1992-07-09 1994-12-20 Sumitomo Metal Industries, Ltd. Method of manufacturing high strength steel member with a low yield ratio
JP2000144327A (ja) * 1998-11-11 2000-05-26 Nippon Steel Corp 車輪とのなじみ性および耐ころがり疲労損傷性に優れたベイナイト系鋼レール
EP1420078A2 (fr) * 2002-11-12 2004-05-19 Koyo Seiko Co., Ltd. Acier pour roulements ayant une excellente résistance à la corrosion
CN1880497A (zh) * 2006-05-01 2006-12-20 燕山大学 铁路辙叉专用含钨贝氏体锻钢
CN103409689A (zh) * 2013-07-31 2013-11-27 内蒙古包钢钢联股份有限公司 一种稀土处理的铁路辙叉专用贝氏体/马氏体钢
CN104561829A (zh) * 2014-12-30 2015-04-29 南车戚墅堰机车车辆工艺研究所有限公司 一种铁路辙叉用高耐磨钢及其制造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4336101B2 (ja) * 2002-12-25 2009-09-30 新日本製鐵株式会社 耐摩耗性および靭性に優れた高炭素パーライト系レール
CN101586216B (zh) * 2009-06-25 2011-04-06 莱芜钢铁集团有限公司 一种超高强韧贝氏体钢及其制造方法
CN103205627B (zh) * 2013-03-28 2015-08-26 宝山钢铁股份有限公司 一种低合金高性能耐磨钢板及其制造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374322A (en) * 1992-07-09 1994-12-20 Sumitomo Metal Industries, Ltd. Method of manufacturing high strength steel member with a low yield ratio
JP2000144327A (ja) * 1998-11-11 2000-05-26 Nippon Steel Corp 車輪とのなじみ性および耐ころがり疲労損傷性に優れたベイナイト系鋼レール
EP1420078A2 (fr) * 2002-11-12 2004-05-19 Koyo Seiko Co., Ltd. Acier pour roulements ayant une excellente résistance à la corrosion
CN1880497A (zh) * 2006-05-01 2006-12-20 燕山大学 铁路辙叉专用含钨贝氏体锻钢
CN103409689A (zh) * 2013-07-31 2013-11-27 内蒙古包钢钢联股份有限公司 一种稀土处理的铁路辙叉专用贝氏体/马氏体钢
CN104561829A (zh) * 2014-12-30 2015-04-29 南车戚墅堰机车车辆工艺研究所有限公司 一种铁路辙叉用高耐磨钢及其制造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114082987A (zh) * 2021-10-14 2022-02-25 西安建筑科技大学 用于增材制造高锰钢辙叉与铁路用钢轨梯度结构设计方法
CN114082987B (zh) * 2021-10-14 2024-02-02 西安建筑科技大学 用于增材制造高锰钢辙叉与铁路用钢轨梯度结构设计方法
CN115233089A (zh) * 2022-05-16 2022-10-25 季华实验室 一种柔轮用特殊钢及其制备工艺
CN115652045A (zh) * 2022-08-26 2023-01-31 刘澄 一种高耐磨抗冲击Fe-Cr-Mn-Si-Mo-C-N合金粉碎机锤头的制备方法
CN115652045B (zh) * 2022-08-26 2024-05-24 刘澄 一种高耐磨抗冲击Fe-Cr-Mn-Si-Mo-C-N合金粉碎机锤头的制备方法
CN115852116A (zh) * 2022-12-15 2023-03-28 攀钢集团攀枝花钢铁研究院有限公司 深硬化辙叉用钢的生产方法

Also Published As

Publication number Publication date
CN104561829A (zh) 2015-04-29
CN104561829B (zh) 2017-05-24

Similar Documents

Publication Publication Date Title
WO2016107517A1 (fr) Acier allié hautement résistant à l'usure pour cœur de voie ferrée et son procédé de fabrication
CN107904498B (zh) 一种铁路货车用渗碳轴承钢及其制备方法
CN108220766B (zh) 一种Cr-V系热作模具钢及其制备方法
EP3296417A1 (fr) Acier micro-allié pour palier de moyeu de roue de voiture en carbone et son procédé de fabrication
KR102314171B1 (ko) 자동차 휠허브용 베어링강 및 그의 제조방법
TW201726942A (zh) 熱加工工具鋼
CN109252104A (zh) 一种高速钢及其生产方法
CN108929986B (zh) 一种高强度耐磨汽车制动用热轧钢板及其生产工艺
CN105063492A (zh) 汽车摩擦片的热轧钢材及其制备方法
CN110616373A (zh) 一种热作模具钢板及其生产方法
CN109280743B (zh) 一种轧辊用高强度耐磨钢及其生产方法
CN114107839A (zh) 一种低合金铸钢及其热处理方法和在铁路行业的应用
CN110205542A (zh) 一种冷轧辊用工具钢及其制备方法
CN110904385B (zh) 一种低成本链条用冷轧钢板及其生产方法
CN104294184B (zh) Mn-Si-B奥贝耐磨铸钢及其制备方法
EP2682491A1 (fr) Acier pour outil de travail à chaud doté d'une excellente ténacité et son procédé de production
CN114934231A (zh) 一种高锰低磁高强度奥氏体钢及其制造方法
KR20170035133A (ko) 구상흑연주철롤 및 이의 제조 방법
CN114959506B (zh) 超薄不锈钢轧制轧辊用高速钢及其制备方法
CN111979487A (zh) 一种高塑韧性低合金超高强度钢及制备方法
US20240068078A1 (en) Die steel with a high thermal diffusion coefficient and its preparation methods
CN115595508A (zh) 一种卷取机套筒用合金结构钢及其制备方法
CN111057964B (zh) 一种新能源汽车高强度转向节用钢材及其制备方法与应用
CN116219270A (zh) 一种传感器弹性体用的高强度沉淀硬化不锈钢及制备方法
CN109972024B (zh) 一种齿轮钢钢棒用钢及其制备方法和钢棒的制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15875193

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15875193

Country of ref document: EP

Kind code of ref document: A1