EP2662461A1 - Alliage fer-chrome-manganèse-nickel - Google Patents

Alliage fer-chrome-manganèse-nickel Download PDF

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Publication number
EP2662461A1
EP2662461A1 EP12167011.1A EP12167011A EP2662461A1 EP 2662461 A1 EP2662461 A1 EP 2662461A1 EP 12167011 A EP12167011 A EP 12167011A EP 2662461 A1 EP2662461 A1 EP 2662461A1
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EP
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Prior art keywords
weight
alloy
manganese
nickel
chromium
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EP12167011.1A
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German (de)
English (en)
Inventor
Georg-Wilhelm Overbeck
Clemens Raabe
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Schmidt and Clemens GmbH and Co KG
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Schmidt and Clemens GmbH and Co KG
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Priority to EP12167011.1A priority Critical patent/EP2662461A1/fr
Publication of EP2662461A1 publication Critical patent/EP2662461A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Definitions

  • the invention relates to a nickel-chromium-manganese alloy, a component, a method for producing an alloy, a method for producing a component and the use of nickel-chromium-manganese alloys.
  • Duplex steels are known from the prior art.
  • Duplex steel refers to a steel that has a two-phase structure consisting of a ferrite matrix with intercalated austenite.
  • Duplex steels have established themselves as engineering materials in many areas of engineering due to the interplay of good mechanical properties and very good corrosion properties.
  • a disadvantage of duplex steels is that they can only be machined with great effort.
  • the higher proportion of nickel and the high proportion of molybdenum are disadvantageous to duplex materials known from practice, since this makes the materials relatively expensive.
  • duplex steels are expensive, so that standard for the production of duplex steels AOD / VOD converter (argon Oxygen Decarburisation- / Vacuum Oxygen Decarburisation converter) are used with appropriate secondary metallurgical possibilities. A foundry does not usually have such converters.
  • AOD / VOD converter argon Oxygen Decarburisation- / Vacuum Oxygen Decarburisation converter
  • EP 1 327 008 B1 An alloy is known. This alloy has a relatively low nickel content and a relatively high manganese content. This has the disadvantage that the embrittlement tendency of the alloy increases due to the low nickel content and high manganese content.
  • the object of the invention was to propose a nickel-chromium-manganese alloy which has good mechanical properties, good corrosion resistance and good machinability and which can preferably be produced in a cost-efficient manner in a foundry without special melt-metallurgical treatment.
  • a further object of the invention is to propose a component, a method for producing an alloy, a method for producing a component, and a use of nickel-chromium-manganese alloys.
  • the invention is based on the idea of producing good machinability by substituting nickel with one or more of the alloying elements manganese, nitrogen and copper.
  • nickel leads to hardening of the chip, adhesion of the chips to the tool and unfavorable chip breaking behavior. It has been found that these negative properties can be reduced by the substitution of nickel with copper and / or manganese. Thus it has been shown that the hardening and the tendency to stick can be significantly reduced in this substitution. This leads advantageously to low tool wear and higher cutting values.
  • the substitution with nitrogen serves in conjunction with manganese to set a favorable ferrite-austenite ratio and to improve the chip breakage.
  • the invention proposes a nickel-chromium-manganese alloy with 0.005 to 0.07% by weight of carbon, 20.5 to 23.0% by weight of chromium, 0.05 to 1.5% by weight of silicon, 1.5 to 6, 0 wt% manganese, 1.7 to 3.0 wt% nickel, 0.15 to 0.30 wt% nitrogen, 0.1 to 0.8 wt% molybdenum, 0.05 to 4.5 wt% copper, to 0.3 wt% cobalt, up to 0.04 wt% phosphorus, up to 0.04 wt% sulfur, up to 0.2 wt% niobium, up to 0.2 wt% vanadium, up to 0.2 wt% zirconium, up to 0, 2% by weight of tungsten, up to 0.2% by weight of tantalum, up to 0.1% by weight of lead, up to 0.1% by weight of bismuth, up to 0.1% by weight of tin, up to 0.1% by weight of zinc, up to 0.
  • an alloy particularly preferred is an alloy, however, individually or side by side more than 0.005 and less than 0.07 wt% carbon, more than 20.5 and less than 23.0 wt% chromium, more than 0.05 and less than 1.5 Wt% silicon, more than 1.5 and less than 6.0 wt% manganese, more than 1.7 and less than 3.0 wt% nickel, more than 0.15 and less than 0.30 wt% nitrogen, more as 0.1 and less than 0.8% by weight of molybdenum, more than 0.05 and less than 4.5% by weight of copper.
  • the alloying elements which are not explicitly mentioned in connection with the present invention description are understood, which find their way into the alloy when the alloy is melted.
  • the invention has no such impurity-causing impurities and thus only the alloying element mentioned in connection with the present invention description; the remainder in this preferred embodiment would therefore only be iron.
  • the alloy according to the invention has as little or no constituents as possible of the following alloying elements: cobalt, phosphorus, sulfur, niobium, vanadium, zirconium, tungsten, tantalum, lead, bismuth, tin, zinc, selenium, arsenic, titanium, aluminum , Calcium, magnesium, barium, lanthanum, cerium, yttrium, rhenium, oxygen, boron. More preferably, the alloy has less than 0.1% by weight of niobium (Nb), vanadium (V), zirconium (Zr), tantalum (Ta) up.
  • the oxygen content is minimized, preferably to less than 0.04 wt%.
  • This has a toughening effect. In other manufacturing processes, this can be achieved by degassing metallurgical measures, the success of which can not be guaranteed in the casting process. Therefore, attention should be paid to the lowest possible oxygen content when adjusting the alloy.
  • only the minimum amount required used on nickel ie amounts of ⁇ 1.7 wt% Ni), thereby achieving the optimized mechanical processing and good mechanical properties.
  • the nickel-chromium-manganese alloy according to the invention has 0.005 to 0.05 wt.% Carbon. It has been found that reducing the potential carbon content from 0.07 wt.% To 0.05 wt.% Minimizes carbide formation and increases resistance to intergranular corrosion.
  • the nickel-chromium-manganese alloy has 21.2 to 22.5% by weight of chromium, particularly preferably 21.4 to 22% by weight of chromium. It has been found that by increasing the lower range limit for chromium from 20.5% by weight to 21.2% and 21.4% by weight, respectively, and decreasing the upper range limit for chromium from 23.0% by weight to 22% , 5 or 22.0 wt.% An advantageous composition of the ferrite-austenite ratio is achieved, which leads to the positive mechanical properties of the alloy.
  • the nickel-chromium-manganese alloy according to the invention has 0.25 to 1.0 wt.% Or 0.2 to 1.0 wt.% Silicon. It has been found that by increasing the lower range limit for silicon from 0.05 to 0.25, or 0.2% by weight and by decreasing the upper range limit for silicon from 1.5% by weight to 1.0 Wt.% In particular, the advantage is achieved that the oxygen still present in the melt is set by the silicon, without the ferrite-austenite ratio is adversely affected.
  • the nickel-chromium-manganese alloy according to the invention has only up to 0.03% by weight of phosphorus and / or only up to 0.015% by weight of sulfur. It has been found that by lowering the upper range limit for phosphorus from 0.04 wt% to 0.03 wt% and / or lowering the upper range limit for sulfur from 0.04 wt% to 0.015 wt%. the advantage is achieved that exude no technologically relevant embrittling phases.
  • the nickel-chromium-manganese alloy according to the invention comprises 2.0 to 2.7 wt.% Nickel. It has been found that by increasing the lower range limit for nickel from 1.7 to 2.0 wt.% And by reducing the upper range limit for nickel from 3.0 wt.% To 2.7 wt The advantage is achieved that the mechanical properties of the material with minimum nickel content can be reliably achieved without embrittlement. It is considered that embrittlement of the material occurs at nickel contents of less than 1.7% by weight. This could be demonstrated by a decreasing impact strength on materials with nickel contents of less than 1.7% by weight.
  • nickel contributes to the formation of austenite and leads to a reduction in the solubility of nitrogen in the ferrite. Therefore, a minimum content of nickel in the alloy for austenite formation is helpful. Furthermore, limiting the maximum to limit the decreasing solubility of the nitrogen in the ferrite is advisable.
  • the nickel-chromium-manganese alloy according to the invention comprises 0.2 to 0.25% by weight of nitrogen. It has been found that by increasing the lower range limit for nitrogen from 0.15 to 0.2 wt.% And reducing the upper range limit for nitrogen from 0.3 wt.% To 0.25 wt Advantage is achieved that the material has a structure of 30-50% ferrite content with optimum mechanical properties.
  • the nickel-chromium-manganese alloy according to the invention has 0.3 to 0.7% by weight of molybdenum. It has been found that by increasing the lower range limit for molybdenum from 0.1 to 0.3% by weight, and by reducing the upper range limit for molybdenum from 0.8% by weight to 0.7% by weight, in particular Advantage is achieved that a significantly increased resistance to intergranular corrosion and an increase in strength occurs without disadvantages in mechanical processing.
  • the nickel-chromium-manganese alloy according to the invention can be carried out in a preferred embodiment with relatively low copper contents.
  • the invention comprises only 0.3 to 1.0 wt% copper. This provides the advantage that the material has improved machinability with a stable ferrite-austenite ratio.
  • the alloy according to the invention may contain 3.5 to 5.0% by weight of manganese, particularly preferably 3.5 to 4.5% by weight of manganese.
  • the desired good mechanical processing and the desired high strength can be achieved by alloying copper.
  • copper contents of greater than 3 wt .-% are used to meet the casting requirements of the material. Particular preference is given to using copper contents of from 3.0 to 4.5% by weight of copper.
  • at high copper levels the manganese content is lowered, preferably to values of less than 3.0% by weight and at least 1.5% by weight.
  • the ferrite-austenite ratio with adjusted heat treatment is set at 45-70% austenite.
  • the manganese content of the alloy in weight percent is less than three times the nickel content of the alloy in weight percent.
  • the ratio of the manganese content of the alloy in weight percent to the nickel content of the alloy in weight percent is between 1.5 and 3 times, preferably between 1.5 and 2.5 times. It has been recognized that setting such a ratio results particularly well in the desired mechanical properties and improved machinability. It is assumed that a Mn content / Ni content of greater than 3 leads to embrittlement of the material. It is believed that lowering the Mn content / Ni content below 1.5 results in a decrease in strength as well as poorer machinability.
  • manganese is a weak austenite former which has the property of increasing the solubility of nitrogen in the alloy. This seems to apply to both the austenitic and ferritic phases. This entails the danger of nitrogen supersaturation of the ferrite and consequent waste of the material toughness. Therefore, it is advisable to limit the manganese content as well as to determine this depending on the nickel content.
  • the sum of the manganese content and the copper content of the alloy in weight percent is less than three times the nickel content of the alloy in weight percent. More preferably, the ratio of this sum to the nickel content of the alloy in weight percent is between 1.5 and 3.5 times, preferably between 1.8 and 3.0 times. It has been recognized that setting such a ratio results in the desired mechanical properties and improved machinability. A deviation below this ratio may result in a non-preferred ferrite content ⁇ 30% and lower strength properties. A deviation above this ratio can lead to low toughness properties.
  • the alloy has a ferrite content of the total structure of 30 to 55%, particularly preferably 35 to 55%. It has been shown that particularly good mechanical properties are achieved with such a ferrite component.
  • the remainder of the microstructure is austenite.
  • the inventive method for producing the alloy according to the invention provides that the alloy components are melted in an induction furnace and deoxidized by means of Pfannenzuchlägen. It has been shown that the alloy according to the invention can be produced particularly easily in this way.
  • the melting of the alloying constituents is carried out in a medium frequency crucible furnace without subsequent secondary metallurgy such as ladle degassing.
  • the inventive method for producing the component according to the invention provides for carrying out the inventive method for producing the alloy according to the invention, thereby to produce a casting alloy and then provides the casting of the component according to the invention from this casting alloy.
  • the casting of the component takes place under normal atmosphere, ie without a vacuum or inert gas atmosphere.
  • the method according to the invention preferably dispenses with a Forming to save this operation. It was recognized that in thick-walled areas, ie areas with a wall thickness of more than 20 mm, grain sizes of more than 1.5 mm are increasingly found, which are also retained over the entire life cycle of the component. Grain sizes of more than 1.5 mm can not be avoided with cast components, which is why the alloy should already be adjusted from the outset so that it achieves the required properties without deformation.
  • the cast component is subjected to a heat treatment at a temperature of 1,000 to 1,250 ° C with accelerated cooling. This makes it possible to set a ferrite-austenite ratio of preferably 45-55% ferrite, balance austenite.
  • the manganese, nickel and copper contents are adjusted so that the alloy remains pourable and exhibits optimum cutting values and good mechanical-technological properties after solidification. This is achieved in particular by the manganese content in the following limits: 1.5 to 6.0% by weight, the nickel content within the following limits: 1.7 to 3.0% by weight and the copper content. Content within the following limits: 0.05 to 4.5Gew% is selected.
  • the nickel-chromium-manganese alloy according to the invention is used as cast alloy.
  • a cast alloy is understood in particular to mean an alloy which is produced in a primary molding process without subsequent transformation.
  • the nickel-chromium-manganese alloy according to the invention as cast alloy, a large design spectrum is available for the production method for the component according to the invention.
  • By casting both thin-walled and thick-walled component geometries can be generated. It has been found that both thin-walled and thick-walled components can be produced by casting from the nickel-chromium-manganese alloy according to the invention.
  • the nickel-chromium-manganese alloy according to the invention is adjusted so that it already meets the mechanical requirements required for the use of the component consisting of this alloy without after-treatment, or at least alone with subsequent heat treatment.
  • the alloy according to the invention is used as a duplex material.
  • the alloy according to the invention is particularly preferably used in order to use it for components for general mechanical engineering, in particular for components in the separation technique, for example, the decanter or centrifuge or for components used in mixers, pumps, valves, valves and / or piping.
  • Table 1 below shows, as examples of the alloy according to the invention, alloys 1 to 18. Further, Table 1, which is incorporated herein by reference, shows as alloys (alloys not belonging to the invention) alloys which are similar to the alloy types 22Cr-5Ni (material number 1.4470) and 23Cr-4Ni, respectively (Material number 1.4362) were produced. The table shows the carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), nickel (Ni), molybdenum (Mo), nitrogen (N), aluminum (Al) and copper (Cu) wt .-% of the respective alloy, the remainder were each iron and unavoidable impurities.
  • Table 1 Table 1: ⁇ / b> Ex. C Si Mn P S Cr Ni Not a word N al Cu (Mn + Cu) / Ni Mn / Ni 1 0.03 0.73 4.95 0.028 0.001 21.59 1.57 0.54 0.215 0,012 0.19 3.27 3.15 2 0,025 0.87 5.41 0,015 0,003 21.28 1.6 0.52 0.22 0,015 0.25 3.54 3.38 3 0.027 0.8 3.69 0,021 0.005 20.7 2.2 0.2 0,186 0.005 0.6 1.95 1.68 4 0.03 0.69 4.8 0,015 0,004 21.6 2.6 0.83 0.225 0,029 0.51 2.04 1.85 5 0.03 0.62 4.77 0,018 0.001 21.1 2.28 0.47 0,241 0.011 0.3 2.22 2.09 6 0.028 0.86 4.46 0.08 0.005 21.08
  • the Fig. 1 indicates the degree of compliance with the desired mechanical properties 0.2% proof stress (Rp0.2) ⁇ 420 N / mm2, tensile strength (Rm) ⁇ 620 N / mm2, elongation (A5)> 20% and notched impact strength (Charpy - V) ⁇ 60J.
  • the Fig. 2 shows the machinability of the experimental analyzes based on Mo-poor reference alloys as a function of the Mn / Ni ratio.
  • Fig. 3, 4 and 6 show typical structures of the Ni-Cr-Mn duplex alloy according to the invention according to the alloy composition defined in detail in the table above according to Example 5, 10 and 15. It can be seen the typical balanced two-phase structure of the duplex steels.
  • the Fig. 5 shows the representative gap fracture at unfavorable Mn-Ni ratio of alloy composition no. 1. The ratio is too high, a decrease in toughness can be seen.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
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  • Crystallography & Structural Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP12167011.1A 2012-05-07 2012-05-07 Alliage fer-chrome-manganèse-nickel Withdrawn EP2662461A1 (fr)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104087767A (zh) * 2014-07-08 2014-10-08 张家港市飞浪泵阀有限公司 非真空感应炉熔炼镍基合金的方法
EP3556879A4 (fr) * 2017-01-23 2020-01-15 JFE Steel Corporation Plaque d'acier inoxydable duplex ferritique/austénitique
WO2021046929A1 (fr) * 2019-09-12 2021-03-18 南京达迈科技实业有限公司 Cible rotative de ni-cr de grand diamètre contenant des éléments de trace et son procédé de préparation
CN113462988A (zh) * 2021-06-18 2021-10-01 浙江瓯赛汽车部件铸造有限公司 阀体铸件及其铸造工艺
CN115925405A (zh) * 2022-12-29 2023-04-07 西安锐磁电子科技有限公司 一种高磁导率高居里温度NiCuZn软磁铁氧体材料及其制备方法
PL442755A1 (pl) * 2022-11-07 2024-05-13 Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza Im. Stanisława Staszica W Gliwicach Żaroodporna stal martenzytyczna oraz sposób obróbki cieplno-plastycznej i cieplnej żaroodpornej stali martenzytycznej

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624670A (en) * 1952-08-15 1953-01-06 Union Carbide & Carbon Corp Chromium steels
FR2119612A5 (fr) * 1970-12-23 1972-08-04 Armco Steel Corp
US6096441A (en) 1997-06-30 2000-08-01 Usinor Austenoferritic stainless steel having a very low nickel content and a high tensile elongation
EP1327008B1 (fr) 2000-09-27 2006-02-15 Outokumpu Stainless AB Acier inoxydable ferritique austenitique
EP2258885A1 (fr) * 2008-03-26 2010-12-08 Nippon Steel & Sumikin Stainless Steel Corporation Acier inoxydable duplex faiblement allié dans lequel les zones affectées par la chaleur de soudage présentent une bonne résistance à la corrosion et une bonne ténacité

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624670A (en) * 1952-08-15 1953-01-06 Union Carbide & Carbon Corp Chromium steels
FR2119612A5 (fr) * 1970-12-23 1972-08-04 Armco Steel Corp
US3736131A (en) 1970-12-23 1973-05-29 Armco Steel Corp Ferritic-austenitic stainless steel
US6096441A (en) 1997-06-30 2000-08-01 Usinor Austenoferritic stainless steel having a very low nickel content and a high tensile elongation
EP1327008B1 (fr) 2000-09-27 2006-02-15 Outokumpu Stainless AB Acier inoxydable ferritique austenitique
EP2258885A1 (fr) * 2008-03-26 2010-12-08 Nippon Steel & Sumikin Stainless Steel Corporation Acier inoxydable duplex faiblement allié dans lequel les zones affectées par la chaleur de soudage présentent une bonne résistance à la corrosion et une bonne ténacité

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WESSMAN S M ET AL: "On the effect of nickel substitution in duplex stainless steel", MATERIALS SCIENCE AND TECHNOLOGY, MANEY PUBLISHING, GB, vol. 24, no. 3, 1 March 2008 (2008-03-01), pages 348 - 355, XP008154661, ISSN: 0267-0836, DOI: 10.1179/174328408X276116 *

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* Cited by examiner, † Cited by third party
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CN104087767A (zh) * 2014-07-08 2014-10-08 张家港市飞浪泵阀有限公司 非真空感应炉熔炼镍基合金的方法
CN104087767B (zh) * 2014-07-08 2016-08-24 张家港市飞浪泵阀有限公司 非真空感应炉熔炼镍基合金的方法
EP3556879A4 (fr) * 2017-01-23 2020-01-15 JFE Steel Corporation Plaque d'acier inoxydable duplex ferritique/austénitique
US11142814B2 (en) 2017-01-23 2021-10-12 Jfe Steel Corporation Ferritic-austenitic duplex stainless steel sheet
WO2021046929A1 (fr) * 2019-09-12 2021-03-18 南京达迈科技实业有限公司 Cible rotative de ni-cr de grand diamètre contenant des éléments de trace et son procédé de préparation
CN113462988A (zh) * 2021-06-18 2021-10-01 浙江瓯赛汽车部件铸造有限公司 阀体铸件及其铸造工艺
PL442755A1 (pl) * 2022-11-07 2024-05-13 Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza Im. Stanisława Staszica W Gliwicach Żaroodporna stal martenzytyczna oraz sposób obróbki cieplno-plastycznej i cieplnej żaroodpornej stali martenzytycznej
CN115925405A (zh) * 2022-12-29 2023-04-07 西安锐磁电子科技有限公司 一种高磁导率高居里温度NiCuZn软磁铁氧体材料及其制备方法

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