CN112575226A - Wear-resistant high-temperature-resistant nickel-chromium alloy and preparation method thereof - Google Patents
Wear-resistant high-temperature-resistant nickel-chromium alloy and preparation method thereof Download PDFInfo
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- CN112575226A CN112575226A CN201910922347.4A CN201910922347A CN112575226A CN 112575226 A CN112575226 A CN 112575226A CN 201910922347 A CN201910922347 A CN 201910922347A CN 112575226 A CN112575226 A CN 112575226A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
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- 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
- C22C1/023—Alloys based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
Abstract
The invention discloses a wear-resistant high-temperature-resistant nickel-chromium alloy and a preparation method thereof, wherein the alloy is divided into two different alloys according to the mass percentage, and the two different alloys specifically comprise the following components: cr15Ni60 and Cr20 Ni 40. The Cr15Ni60 mainly comprises the following components: cu1-2%, Mo0.02-0.06%, Mn0.5-1%, Mg1-2%, Si0.3-0.6%, Re0.1-0.3%, Cr14-16%, Ni59-62%, and the balance of Fe and inevitable impurities. The invention combines the influence of different elements on the alloy performance and the synergistic effect among the elements, reasonably adjusts the proportion of the alloy elements, and effectively improves the wear resistance and the high temperature resistance of the alloy through the combination and the synergistic effect among the elements.
Description
Technical Field
The invention relates to the technical field of alloy materials, in particular to a wear-resistant high-temperature-resistant nickel-chromium alloy and a preparation method thereof.
Background
Electrothermal alloy is an important functional alloy material. With the development of domestic economy in China, the demand for such materials is increasing year by year. The main chemical components of the nickel-chromium alloy are nickel and chromium, and the nickel-chromium alloy can be widely applied to heating elements in metallurgy, household appliances, mechanical manufacturing industries and the like and resistance materials in electrical appliance industries, but because of containing nickel, the nickel-chromium alloy has higher price, and if the product has poor quality and short service life, the nickel-chromium alloy is not beneficial to the use and popularization of the nickel-chromium alloy wire. However, the existing nickel-chromium alloy generally has the problems of weak wear resistance and low high temperature resistance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a wear-resistant high-temperature-resistant nickel-chromium alloy and a preparation method thereof.
The invention adopts the specific technical scheme that:
the wear-resistant high-temperature-resistant nickel-chromium alloy is divided into two different alloys according to mass percent, and specifically comprises the following components: cr15Ni60 and Cr20 Ni 40.
Further, the Cr15Ni60 comprises the following main components: cu1-2%, Mo0.02-0.06%, Mn0.5-1%, Mg1-2%, Si0.3-0.6%, Re0.1-0.3%, Cr14-16%, Ni59-62%, and the balance of Fe and inevitable impurities.
Further, the Cr20 Ni40 comprises the following main components: cu2-3%, Mo0.02-0.06%, Mn2-3%, Mg1-2%, Si0.1-0.3%, Re0.1-0.3%, Cr19-22%, Ni40-43%, and the balance of Fe and inevitable impurities.
Preferably, the content of the inevitable impurities does not exceed 0.5%.
Correspondingly, the invention also provides a preparation method of the nickel-chromium alloy, which comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, and putting nickel, chromium, copper and magnesium into a melting furnace for melting operation to generate alloy melt;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Preferably, the temperature of the melting furnace is controlled to 3500-4000 ℃ during the melting operation, and after the alloy melt is generated, the temperature of the melting furnace is controlled to 1500-1800 ℃.
Cu: copper results in additional strength increase, but as its content increases, it again degrades the corrosion resistance of the alloy.
Mo: the molybdenum is combined with the chromium and the nickel, so that the interatomic binding force can be effectively improved, the grain boundary is strengthened, and the toughness of the steel is greatly improved.
Mn: manganese can be infinitely solid-dissolved with iron, and the solid-solution strengthening, supplementary strengthening and heat resistance improvement of the alloy can be realized.
Mg: magnesium can distort crystal lattices and cause solid solution hardening; meanwhile, magnesium can also improve the corrosion resistance and the heat resistance of the alloy and weaken the influence of copper on the corrosion resistance of the alloy.
Si: silicon is an important reducing agent and deoxidizing agent in the steelmaking process, and the high-temperature oxidation resistance of the alloy can be improved by forming a silicon-rich oxidation protection film; can promote and improve the tensile strength of the alloy.
Re: rhenium can spheroidize crystal grains, improve the wear resistance of the alloy and also improve the high-temperature strength of the alloy.
The invention has the beneficial effects that: the invention combines the influence of different elements on the alloy performance and the synergistic effect among the elements, reasonably adjusts the proportion of the alloy elements, and effectively improves the wear resistance and the high temperature resistance of the alloy through the combination and the synergistic effect among the elements.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto, and various substitutions and alterations can be made without departing from the technical idea of the present invention as described above, according to the common technical knowledge and the conventional means in the field.
Example 1
The wear-resistant high-temperature-resistant nickel-chromium alloy comprises the following main components in percentage by mass: cu1-2%, Mo0.02-0.06%, Mn0.5-1%, Mg1-2%, Si0.3-0.6%, Re0.1-0.3%, Cr14-16%, Ni59-62%, and the balance of Fe and inevitable impurities.
The preparation method of the nickel-chromium alloy comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, putting nickel, chromium, copper and magnesium into a melting furnace for melting operation, controlling the temperature of the melting furnace at 3500-4000 ℃, and controlling the temperature of the melting furnace at 1500-1800 ℃ after alloy melt is generated;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Vickers hardness (HV, kg/mm) of the nickel-chromium alloy of example 12) 395, the tensile strength is 395MPa, and the elongation is 25%.
Example 2
The wear-resistant high-temperature-resistant nickel-chromium alloy comprises the following main components in percentage by mass: cu1-2%, Mo0.02-0.06%, Mn0.5-1%, Mg1-2%, Si0.3-0.6%, Re0.1-0.3%, Cr14-16%, Ni59-62%, and the balance of Fe and inevitable impurities.
The preparation method of the nickel-chromium alloy comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, putting nickel, chromium, copper and magnesium into a melting furnace for melting operation, controlling the temperature of the melting furnace at 3500-4000 ℃, and controlling the temperature of the melting furnace at 1500-1800 ℃ after alloy melt is generated;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Vickers hardness (HV, kg/mm) of the nickel-chromium alloy of example 22) 460, tensile strength 415MPa, and elongation 28%.
Example 3
The wear-resistant high-temperature-resistant nickel-chromium alloy comprises the following main components in percentage by mass: cu1-2%, Mo0.02-0.06%, Mn0.5-1%, Mg1-2%, Si0.3-0.6%, Re0.1-0.3%, Cr14-16%, Ni59-62%, and the balance of Fe and inevitable impurities.
The preparation method of the nickel-chromium alloy comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, putting nickel, chromium, copper and magnesium into a melting furnace for melting operation, controlling the temperature of the melting furnace at 3500-4000 ℃, and controlling the temperature of the melting furnace at 1500-1800 ℃ after alloy melt is generated;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Vickers hardness (HV, kg/mm) of the nickel-chromium alloy of example 32) 435, tensile strength 390MPa, and elongation 26%.
Example 4
The wear-resistant high-temperature-resistant nickel-chromium alloy comprises the following main components in percentage by mass: cu2-3%, Mo0.02-0.06%, Mn2-3%, Mg1-2%, Si0.1-0.3%, Re0.1-0.3%, Cr19-22%, Ni40-43%, and the balance of Fe and inevitable impurities.
The preparation method of the nickel-chromium alloy comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, putting nickel, chromium, copper and magnesium into a melting furnace for melting operation, controlling the temperature of the melting furnace at 3500-4000 ℃, and controlling the temperature of the melting furnace at 1500-1800 ℃ after alloy melt is generated;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Vickers hardness (HV, kg/mm) of the nickel-chromium alloy of example 42) 390, tensile strength 400MPa, and elongation 25%.
Example 5
The wear-resistant high-temperature-resistant nickel-chromium alloy comprises the following main components in percentage by mass: cu2-3%, Mo0.02-0.06%, Mn2-3%, Mg1-2%, Si0.1-0.3%, Re0.1-0.3%, Cr19-22%, Ni40-43%, and the balance of Fe and inevitable impurities.
The preparation method of the nickel-chromium alloy comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, putting nickel, chromium, copper and magnesium into a melting furnace for melting operation, controlling the temperature of the melting furnace at 3500-4000 ℃, and controlling the temperature of the melting furnace at 1500-1800 ℃ after alloy melt is generated;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Vickers hardness (HV, kg/mm) of the nickel-chromium alloy of example 52) 414, tensile strength 410MPa, and elongation 27%.
Example 6
The wear-resistant high-temperature-resistant nickel-chromium alloy comprises the following main components in percentage by mass: cu2-3%, Mo0.02-0.06%, Mn2-3%, Mg1-2%, Si0.1-0.3%, Re0.1-0.3%, Cr19-22%, Ni40-43%, and the balance of Fe and inevitable impurities.
The preparation method of the nickel-chromium alloy comprises the following steps:
proportioning according to the mass percentage of each component of the alloy, putting nickel, chromium, copper and magnesium into a melting furnace for melting operation, controlling the temperature of the melting furnace at 3500-4000 ℃, and controlling the temperature of the melting furnace at 1500-1800 ℃ after alloy melt is generated;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
Vickers hardness (HV, kg/mm) of the nickel-chromium alloy of example 62) 392, a tensile strength of 395MPa and an elongation of 25%.
Although the embodiments have been described, once the basic inventive concept is known, a person skilled in the art can make other changes and modifications to these embodiments, so that the above description is only an embodiment of the present invention, and does not limit the scope of the present invention, and all equivalent flow changes made by the present specification or other related technical fields directly or indirectly are included in the scope of the present invention.
Claims (6)
1. The wear-resistant high-temperature-resistant nickel-chromium alloy is characterized by being divided into two different alloys according to mass percentage, and specifically comprises the following components: cr15Ni60 and Cr20 Ni 40.
2. The wear-resistant high-temperature-resistant nickel-chromium alloy as claimed in claim 1, wherein the Cr15Ni60 mainly comprises the following components: cu1-2%, Mo0.02-0.06%, Mn0.5-1%, Mg1-2%, Si0.3-0.6%, Re0.1-0.3%, Cr14-16%, Ni59-62%, and the balance of Fe and inevitable impurities.
3. The wear-resistant high-temperature-resistant nickel-chromium alloy as claimed in claim 1, wherein the Cr20 Ni40 mainly comprises the following components: cu2-3%, Mo0.02-0.06%, Mn2-3%, Mg1-2%, Si0.1-0.3%, Re0.1-0.3%, Cr19-22%, Ni40-43%, and the balance of Fe and inevitable impurities.
4. The alloy of claim 2 or 3, wherein the unavoidable impurities are present in an amount of no more than 0.5%.
5. The method of making nickel chromium alloy according to claim 4, comprising the steps of:
proportioning according to the mass percentage of each component of the alloy, and putting nickel, chromium, copper and magnesium into a melting furnace for melting operation to generate alloy melt;
melting the other element metals to be added outside the melting furnace under the protection of inert gas, and adding the other element metals into the alloy melt; and cooling the alloy melt and drawing the alloy melt into the nickel-chromium alloy wire.
6. The method as claimed in claim 5, wherein the melting furnace temperature is controlled to 3500-4000 ℃ during melting operation, and the melting furnace temperature is controlled to 1500-1800 ℃ after the alloy melt is produced.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999797A (en) * | 2005-08-22 | 2007-07-18 | 莱茵费尔登炼铝厂有限责任公司 | Heat resistant aluminium alloy |
| CN103103383A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg-RE aluminium alloy, preparation method thereof and power cable |
| CN109112370A (en) * | 2018-08-17 | 2019-01-01 | 烟台市睿丰新材料科技有限公司 | A kind of high-strength, high-anti-friction acieral resistant to high temperature |
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2019
- 2019-09-27 CN CN201910922347.4A patent/CN112575226A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999797A (en) * | 2005-08-22 | 2007-07-18 | 莱茵费尔登炼铝厂有限责任公司 | Heat resistant aluminium alloy |
| CN103103383A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg-RE aluminium alloy, preparation method thereof and power cable |
| CN109112370A (en) * | 2018-08-17 | 2019-01-01 | 烟台市睿丰新材料科技有限公司 | A kind of high-strength, high-anti-friction acieral resistant to high temperature |
Non-Patent Citations (2)
| Title |
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| 朱艳: "《材料化学》", 31 October 2018, 西北工业大学出版 * |
| 黎桂英等: "《最新实用五金手册》", 30 November 1990, 广东科学技术出版社 * |
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