CN105695866A - High-temperature-resistant alloy steel and preparation method thereof - Google Patents
High-temperature-resistant alloy steel and preparation method thereof Download PDFInfo
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- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- 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
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- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- 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
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- 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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
Abstract
The invention discloses high-temperature-resistant alloy steel and a preparation method thereof. The high-temperature-resistant alloy steel comprises, by weight, 0.30-0.50% of nickel, 0.80-1.40% of manganese, 0.20-0.34% of silicon, 0.14-0.18% of carbon, 0.02-0.06% of boron, 0.01-0.02% of phosphorus, 0.015-0.025% of sulphur, 0.08-0.1% of chromium, 0.06-0.2% of vanadium, 0.2-0.3% of copper, 0.02-0.08% of molybdenum, 0.08-0.1% of titanium, 0.02-0.04% of niobium, 0.06-0.2% of rubidium, 0.08-0.1% of thorium, 0.06-0.1% of erbium and thulium and the balance iron, wherein the content of thulium is 2-4 times that of erbium. The novel alloy steel material has excellent high temperature oxidation resistance and can be used for producing workpieces high in high temperature oxidation resistance. The high temperature oxidation resistance of the novel alloy steel material is related to the content ratios of thulium and erbium in the alloy steel.
Description
Technical field
The invention belongs to field of new, be specifically related to a kind of high temperature resistance steel alloy and preparation method thereof。
Background technology
Excellent elevated temperature strength, good antioxidation and high temperature corrosion resistance are the prerequisite features of cracking furnace pipe critical component。It has been generally acknowledged that alloy high-temp is during one's term of military service, the chromium oxide forming one layer of complete densification at material surface can protect matrix effectively, carries heavy alloyed service life。On this basis, someone passes through the method for pre-oxidation and promotes that alloy surface forms one layer of dense oxide chromium, to put forward heavy alloyed resistance to high temperature corrosion ability。But due to the impact that alloy is thermally stressed during one's term of military service, therefore oxide-film easily peels off, thus losing its protectiveness to matrix。On the other hand, when element silicon is present in oxide-film with basal body interface with the form of discontinuous internal oxidition product, it is possible to significantly improve oxide-film and substrate combinating strength。
In order to improve the high temperature oxidation resistance of steel alloy, the preparation method that Chinese invention patent CN1391517 discloses the heat-resisting alloy with good high-temperature oxidation, the basic material of the good morphotropism being wherein made up of austenitic Chlorimet or cobalt-base alloys or rustless steel is coated with last layer aluminum or aluminum alloy on one or both sides, this composite formed by basic material and aluminized coating has good adhesiveness, forms final size when being with or without intermediate annealing by deforming。Chinese invention patent CN101798662A also discloses grid section of a kind of high temperature oxidation resistance and preparation method thereof, this invention includes the component of following weight percentage: C0.3～0.6%, N0.2～0.4%, Cr22～25%, Si0.3～0.5%, Mn3～4%, Ni6～8%, B0.001～0.002%, Zr < 0.01%, surplus is Fe。The grid section of this invention adopts fusing, refine, alloying and cast several stage to be prepared and form。This invention grid section has high rigidity and better impact property, and at high temperature resistance capacity to deformation improves, and simultaneously wearability also improves, due in the oxide-film of this invention grid section without Mn3O4So that its oxide-film is at high temperature stable and compactness and seriality better, higher with the combination degree of base material, there is excellent antioxygenic property, be better than existing grid section。Chinese invention patent CN1431338 also discloses the preparation of a kind of coat of aluminide with chrome modified improving Ti-Al Alloy Anti high-temperature oxydation, this coating is made up of aluminum 67, titanium 25 and chromium 8, its preparation technology adopts the method for pack cementation to prepare, its method is: first accurately weigh penetration enhancer according to quantity, the proportioning of penetration enhancer is by weight percentage: 8～12% aluminum, 25～35% chromium, 1～3% sodium chloride, 2～4% ammonia chlorides, all the other are aluminium sesquioxide；The penetration enhancer weighed is ground and stirs；The penetration enhancer being sufficiently mixed is placed in the baking oven that temperature is 110 DEG C and dries；The penetration enhancer dried is loaded crucible, and sample is imbedded in penetration enhancer, then crucible is inserted high temperature resistance furnace rear pass into dry argon gas, be heated to 1100 DEG C, by controlling the time, it is achieved prepare the coat of aluminide with chrome modified of different-thickness at Ti-Al alloy surface。
But, it is more to there is expensive alloying elements addition in foregoing invention, and material cost is high, and the defect such as the high temperature oxidation resistance of material is not enough。
Summary of the invention
It is an object of the invention to provide the steel alloy new material of a kind of resistance to high temperature oxidation, this steel alloy high temperature oxidation resistance is high, is suitable for the making material of cracking furnace pipe critical component。
Above-mentioned purpose is achieved by following technical solution:
A kind of high temperature resistance steel alloy, including following chemical composition: 0.30～0.50wt% nickel, 0.80%～1.40wt% manganese, 0.20～0.34wt% silicon, 0.14～0.18wt% carbon, 0.02～0.06wt% boron, 0.01～0.02wt% phosphorus, 0.015～0.025wt% sulfur, 0.08～0.1wt% chromium, 0.06～0.2wt% vanadium, 0.2～0.3wt% copper, 0.02～0.08wt% molybdenum, 0.08～0.1wt% titanium, 0.02～0.04wt% niobium, 0.06～0.2wt% rubidium, 0.08～0.1wt% thorium, 0.06～0.1wt% erbium and thulium, surplus is ferrum；Wherein, described thulium content is 2～4 times of erbium content。
Preferably, described high temperature resistance steel alloy includes following chemical composition: 0.40wt% nickel, 1.10wt% manganese, 0.27wt% silicon, 0.16wt% carbon, 0.04wt% boron, 0.015wt% phosphorus, 0.02wt% sulfur, 0.09wt% chromium, 0.13wt% vanadium, 0.25wt% copper, 0.05wt% molybdenum, 0.09wt% titanium, 0.03wt% niobium, 0.13wt% rubidium, 0.09wt% thorium, 0.08wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 3 times of erbium content。
Preferably, described high temperature resistance steel alloy includes following chemical composition: 0.30wt% nickel, 0.80%wt% manganese, 0.20wt% silicon, 0.14wt% carbon, 0.02wt% boron, 0.01wt% phosphorus, 0.015wt% sulfur, 0.08wt% chromium, 0.06wt% vanadium, 0.2wt% copper, 0.02wt% molybdenum, 0.08wt% titanium, 0.02wt% niobium, 0.06wt% rubidium, 0.08wt% thorium, 0.06wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 2 times of erbium content。
Preferably, described high temperature resistance steel alloy includes following chemical composition: 0.50wt% nickel, 1.40wt% manganese, 0.34wt% silicon, 0.18wt% carbon, 0.06wt% boron, 0.02wt% phosphorus, 0.025wt% sulfur, 0.1wt% chromium, 0.2wt% vanadium, 0.3wt% copper, 0.08wt% molybdenum, 0.1wt% titanium, 0.04wt% niobium, 0.2wt% rubidium, 0.1wt% thorium, 0.1wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 4 times of erbium content。
Advantages of the present invention:
Steel alloy new material high temperature oxidation resistance provided by the invention is high, is suitable for the making material of cracking furnace pipe critical component。
Detailed description of the invention
Further illustrate the essentiality content of the present invention below in conjunction with embodiment, but do not limit scope with this。Although the present invention being explained in detail with reference to preferred embodiment, it will be understood by those within the art that, it is possible to technical scheme is modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention。
Embodiment 1:
Steel alloy chemical composition is as follows: 0.40wt% nickel, 1.10wt% manganese, 0.27wt% silicon, 0.16wt% carbon, 0.04wt% boron, 0.015wt% phosphorus, 0.02wt% sulfur, 0.09wt% chromium, 0.13wt% vanadium, 0.25wt% copper, 0.05wt% molybdenum, 0.09wt% titanium, 0.03wt% niobium, 0.13wt% rubidium, 0.09wt% thorium, 0.08wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 3 times of erbium content。
Embodiment 2:
Steel alloy chemical composition is as follows: 0.30wt% nickel, 0.80%wt% manganese, 0.20wt% silicon, 0.14wt% carbon, 0.02wt% boron, 0.01wt% phosphorus, 0.015wt% sulfur, 0.08wt% chromium, 0.06wt% vanadium, 0.2wt% copper, 0.02wt% molybdenum, 0.08wt% titanium, 0.02wt% niobium, 0.06wt% rubidium, 0.08wt% thorium, 0.06wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 2 times of erbium content。
Embodiment 3:
Steel alloy chemical composition is as follows: 0.50wt% nickel, 1.40wt% manganese, 0.34wt% silicon, 0.18wt% carbon, 0.06wt% boron, 0.02wt% phosphorus, 0.025wt% sulfur, 0.1wt% chromium, 0.2wt% vanadium, 0.3wt% copper, 0.08wt% molybdenum, 0.1wt% titanium, 0.04wt% niobium, 0.2wt% rubidium, 0.1wt% thorium, 0.1wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 4 times of erbium content。
Embodiment 4: comparative example, thulium content is 1 times of erbium content
Steel alloy chemical composition is as follows: 0.40wt% nickel, 1.10wt% manganese, 0.27wt% silicon, 0.16wt% carbon, 0.04wt% boron, 0.015wt% phosphorus, 0.02wt% sulfur, 0.09wt% chromium, 0.13wt% vanadium, 0.25wt% copper, 0.05wt% molybdenum, 0.09wt% titanium, 0.03wt% niobium, 0.13wt% rubidium, 0.09wt% thorium, 0.08wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 1 times of erbium content。
Embodiment 5: comparative example, thulium content is 5 times of erbium content
Steel alloy chemical composition is as follows: 0.40wt% nickel, 1.10wt% manganese, 0.27wt% silicon, 0.16wt% carbon, 0.04wt% boron, 0.015wt% phosphorus, 0.02wt% sulfur, 0.09wt% chromium, 0.13wt% vanadium, 0.25wt% copper, 0.05wt% molybdenum, 0.09wt% titanium, 0.03wt% niobium, 0.13wt% rubidium, 0.09wt% thorium, 0.08wt% erbium and thulium, and surplus is ferrum；Wherein, described thulium content is 5 times of erbium content。
Embodiment 6: effect example
Respectively the room temperature hardness of testing example 1～5 steel alloy, tensile strength and oxidation weight gain (1100 DEG C oxidation 120 hours after gain in weight)。Result is shown in following table。
| Test sample | Room temperature hardness/HB | 900 DEG C of tensile strength/MPa | Oxidation weight gain (g/m2) |
| Embodiment 1 | 197 | 348 | 5.2 |
| Embodiment 2 | 195 | 347 | 5.8 |
| Embodiment 3 | 196 | 347 | 5.6 |
| Embodiment 4 | 189 | 339 | 15.5 |
| Embodiment 5 | 187 | 340 | 14.2 |
From upper table test result it can be seen that steel alloy provided by the invention has the high temperature oxidation resistance of excellence, it is possible to for the making of the workpiece that high temperature oxidation resistance is high。The high temperature oxidation resistance of this steel alloy new material is relevant with the content ratio of thulium in steel alloy and erbium, and the small variations of ratio is very big on high temperature oxidation resistance impact。
The effect of above-described embodiment indicates that the essentiality content of the present invention, but does not limit protection scope of the present invention with this。It will be understood by those within the art that, it is possible to technical scheme is modified or equivalent replacement, without deviating from essence and the protection domain of technical solution of the present invention。
Claims (4)
1. high temperature resistance steel alloy and preparation method thereof, it is characterized in that, including following chemical composition: 0.30～0.50wt% nickel, 0.80%～1.40wt% manganese, 0.20～0.34wt% silicon, 0.14～0.18wt% carbon, 0.02～0.06wt% boron, 0.01～0.02wt% phosphorus, 0.015～0.025wt% sulfur, 0.08～0.1wt% chromium, 0.06～0.2wt% vanadium, 0.2～0.3wt% copper, 0.02～0.08wt% molybdenum, 0.08～0.1wt% titanium, 0.02～0.04wt% niobium, 0.06～0.2wt% rubidium, 0.08～0.1wt% thorium, 0.06～0.1wt% erbium and thulium, surplus is ferrum；Wherein, described thulium content is 2～4 times of erbium content。
2. high temperature resistance steel alloy according to claim 1, it is characterized in that, including following chemical composition: 0.40wt% nickel, 1.10wt% manganese, 0.27wt% silicon, 0.16wt% carbon, 0.04wt% boron, 0.015wt% phosphorus, 0.02wt% sulfur, 0.09wt% chromium, 0.13wt% vanadium, 0.25wt% copper, 0.05wt% molybdenum, 0.09wt% titanium, 0.03wt% niobium, 0.13wt% rubidium, 0.09wt% thorium, 0.08wt% erbium and thulium, surplus is ferrum；Wherein, described thulium content is 3 times of erbium content。
3. high temperature resistance steel alloy according to claim 1, it is characterized in that, including following chemical composition: 0.30wt% nickel, 0.80%wt% manganese, 0.20wt% silicon, 0.14wt% carbon, 0.02wt% boron, 0.01wt% phosphorus, 0.015wt% sulfur, 0.08wt% chromium, 0.06wt% vanadium, 0.2wt% copper, 0.02wt% molybdenum, 0.08wt% titanium, 0.02wt% niobium, 0.06wt% rubidium, 0.08wt% thorium, 0.06wt% erbium and thulium, surplus is ferrum；Wherein, described thulium content is 2 times of erbium content。
4. high temperature resistance steel alloy according to claim 1, it is characterized in that, including following chemical composition: 0.50wt% nickel, 1.40wt% manganese, 0.34wt% silicon, 0.18wt% carbon, 0.06wt% boron, 0.02wt% phosphorus, 0.025wt% sulfur, 0.1wt% chromium, 0.2wt% vanadium, 0.3wt% copper, 0.08wt% molybdenum, 0.1wt% titanium, 0.04wt% niobium, 0.2wt% rubidium, 0.1wt% thorium, 0.1wt% erbium and thulium, surplus is ferrum；Wherein, described thulium content is 4 times of erbium content。
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886944A (en) * | 2016-06-23 | 2016-08-24 | 温州德业化工有限公司 | Corrosion-resistant alloy material and application thereof |
| CN106011645A (en) * | 2016-07-11 | 2016-10-12 | 吴旭丹 | High-hardness and high-strength alloy steel and application of the alloy steel in manufacturing of drilling rod |
| CN106011659A (en) * | 2016-07-11 | 2016-10-12 | 吴舒晨 | High-strength alloy steel material and application for preparing drilling rod |
| CN106148828A (en) * | 2016-07-27 | 2016-11-23 | 江苏和信石油机械有限公司 | A kind of steel alloy and creep into the purposes of drilling rod for preparation |
| CN106148812A (en) * | 2016-07-27 | 2016-11-23 | 江苏和信石油机械有限公司 | One is corrosion resistant creeps into drilling rod steel |
| CN106148836A (en) * | 2016-07-27 | 2016-11-23 | 江苏和信石油机械有限公司 | A kind of high strength alloy steel and the application in creeping into drilling rod thereof |
| CN106167873A (en) * | 2016-07-27 | 2016-11-30 | 江苏和信石油机械有限公司 | A kind of high intensity creep into drilling rod steel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886944A (en) * | 2016-06-23 | 2016-08-24 | 温州德业化工有限公司 | Corrosion-resistant alloy material and application thereof |
| CN106011645A (en) * | 2016-07-11 | 2016-10-12 | 吴旭丹 | High-hardness and high-strength alloy steel and application of the alloy steel in manufacturing of drilling rod |
| CN106011659A (en) * | 2016-07-11 | 2016-10-12 | 吴舒晨 | High-strength alloy steel material and application for preparing drilling rod |
| CN106148828A (en) * | 2016-07-27 | 2016-11-23 | 江苏和信石油机械有限公司 | A kind of steel alloy and creep into the purposes of drilling rod for preparation |
| CN106148812A (en) * | 2016-07-27 | 2016-11-23 | 江苏和信石油机械有限公司 | One is corrosion resistant creeps into drilling rod steel |
| CN106148836A (en) * | 2016-07-27 | 2016-11-23 | 江苏和信石油机械有限公司 | A kind of high strength alloy steel and the application in creeping into drilling rod thereof |
| CN106167873A (en) * | 2016-07-27 | 2016-11-30 | 江苏和信石油机械有限公司 | A kind of high intensity creep into drilling rod steel |
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Application publication date: 20160622 |