CN105886949A - High-performance heat resistant steel, and preparation method and application thereof - Google Patents
High-performance heat resistant steel, and preparation method and application thereof Download PDFInfo
- Publication number
- CN105886949A CN105886949A CN201610232172.0A CN201610232172A CN105886949A CN 105886949 A CN105886949 A CN 105886949A CN 201610232172 A CN201610232172 A CN 201610232172A CN 105886949 A CN105886949 A CN 105886949A
- Authority
- CN
- China
- Prior art keywords
- heat resistant
- resistant steel
- property heat
- steel
- gained
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
- C22C38/001—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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
Abstract
The invention discloses high-performance heat resistant steel, and belongs to the technical field of high-temperature alloy materials. The high-performance heat resistant steel is composed of, by weight percentage, 0.03-0.05% of C, 14.0-16.0% of Cr, 0.60-1.00% of Mo, 6.20-6.80% of Ni, 1.35-1.75% of Cu, 0.30-0.80% of Mn, 0.24-0.75% of Nb, 0.20-0.50% of Si, and the balance Fe. The invention further discloses a preparation method and application of the high-performance heat resistant steel. The high-performance heat resistant steel has excellent high temperature resistance and mechanical properties. According to the mechanical properties at the room temperature of 25 DEG C, the tensile strength Rm at the room temperature tensile test is greater than or equal to 1245 Mpa, the yield strength RP0.2 is greater than or equal to 1030 N/mm<2>, the elongation A is greater than or equal to 13.5%, the percentage reduction of area Z is greater than or equal to 58%, the impact energy AKv is greater than or equal to 94 J, and the hardness HB is greater than or equal to 393.
Description
Technical field
The present invention relates to alloy material, particularly relate to a kind of high-property heat resistant steel, its preparation method
And application.
Background technology
Materialogy core is alloying general principle, this be material Strengthening and Toughening contradiction main because of
Element.It is to say, be often implacable contradiction in steel field, intensity and toughness, as
Really intensity is sufficiently high, then corresponding toughness just can not get ensureing, is the most also such.
But, in the field that some is special, such as aero-engine compressor blade, both requirement
High intensity requires again high tenacity.Prior art reports the material that much can be used for compressor, this
A little material inlet ends to high-pressure side, total class of material can be successively: aluminium alloy, precipitation-hardening
Stainless steel, titanium alloy, to high temperature alloy, after what compressor blade, due to work temperature
Du Taigao, oxidation resistance and the fire resistance of titanium alloy are the most not competent, high temperature alloy leaf
Sheet has reformed into unique selection, and existing precipitation-hardening stainless steel is the most not competent.
A kind of high-property heat resistant steel having intensity and toughness concurrently is provided, is that this area is badly in need of solving
Problem.
Summary of the invention
An object of the present invention, in that provide a kind of high-property heat resistant steel, on solving
State problem.
To achieve these goals, the technical solution used in the present invention is such that a kind of high property
Energy heat resisting steel, it is characterised in that: its chemical composition, be by weight percentage:
C 0.03～0.05%
Cr 14.00～16.00%
Mo 0.60～1.00%
Ni 6.20～6.80%
Cu 1.35～1.75%
Mn 0.30～0.80%
Nb 0.24～0.75%
Si 0.20～0.50%,
Surplus is Fe.
As preferred technical scheme: in described material, contained impurity, by mass percentage
Meter:
P≤0.020% S≤0.005%
N≤0.030% V≤0.100%.
Wherein, S (sulphur) is the harmful foreign material in steel, and the steel that sulfur-bearing is higher is pressed at high temperature
Power adds man-hour, easy embrittlement, is generally called red brittleness；
P (phosphorus) can make the plasticity of steel and toughness be decreased obviously, the most more
Seriously, this phenomenon is called cold brittleness. and in high-quality steel, sulphur and phosphorus strictly to control. but from
From the perspective of Ling, containing higher sulphur and phosphorus in mild steel, it can be made to cut easily broken, to improvement
The machinability of steel is favourable；
V (vanadium)；The grain structure of steel can be refined, improve the intensity of steel, toughness and wearability. when
It can increase the quenching degree of steel when high temperature fuses into austenite；Otherwise, when it is in carbide shape
In the presence of state, its quenching degree will be reduced；
N (nitrogen): in the metal of liquid, can dissolve substantial amounts of nitrogen when high temperature, and
During steel solidifies, the solubility due to nitrogen declines, and oversaturated nitrogen needs with bubble
Form escapes from liquid metal, but when the crystallization rate of liquid metal is more than the effusion of bubble
During speed.Pore will be formed, when nitrogen content is more than 0.01% in iron liquid.Just it is easily formed gas
Hole, and pore is the crack initiation source of crackle, owing to pore can cause concentration and the bearing capacity of stress
Decline；
At high temperature, steel grade dissolves substantial amounts of nitrogen, during cooling, and some nitrogen and steel
Separate out on the thick nitride that kind of alloying element is formed, crystal boundary in steel or intracrystalline, and cause
The heat endurance of this steel is deteriorated and becomes fragile.As separated out with the form of Fe4N, be distributed in crystal boundary and
Intracrystalline.Causing the embrittlement of metal, its embrittling effect increases with the increase of nitrogen content, the most right
The impact of low-temperature flexibility.And initial aging stage can be caused.
The two of the purpose of the present invention, are to provide the preparation side of a kind of above-mentioned high-property heat resistant steel
Method: comprise the following steps:
(1) press component ratio and weigh raw material, then carry out just refining, smelting temperature
1580～1620 DEG C, obtain molten steel；During this, preferably regulate essential element (C, Mn,
Si, Nb do not adjust) content；
(2) molten steel of step (1) gained is refined, pour into consutrode；Preferably
Adjust the content of each element after having refined so that it is weight ratio meets design requirement, control impurity
The content of element is the lowest
(3) consutrode of step (2) gained is carried out remelting refining, make electroslag ingot；
During Gai, electroslag slag system be preferred: CaF2:Al2O3: CaO:MgO=60:25:10:5 (mass ratio)；
(4) it is forged into rod iron after being heated by the electroslag ingot of step (3) gained；Preferably employ
2000T press.
(5) carry out annealing after being forged by step (4) gained rod iron to be heat-treated, step and technique ginseng
Number is as follows:
Rod iron is heated to 607～635 DEG C, and after being incubated 6～30 hours, stove is cooled to 500 DEG C of skies of coming out of the stove
Cold, then carry out surface process, to obtain final product.
As preferred technical scheme: in step (1), just during refining in non-vacuum induction furnace
Carry out.
As preferred technical scheme: step (2) is carried out in AOD refining furnace.
The three of the purpose of the present invention, are to provide the application of a kind of above-mentioned high-property heat resistant steel, will
Described high-property heat resistant steel is used for compressor blade
Compared with prior art, it is an advantage of the current invention that: the high-property heat resistant steel tool of the present invention
Having resistance to elevated temperatures and the mechanical property of excellence, room temperature (25 DEG C) its mechanical property is: room temperature
Tension test tensile strength Rm≥1245Mpa；Yield strength RP0.2≥1030N/mm2；
Percentage elongation A >=13.5%；Contraction percentage of area Z >=58%；Ballistic work AKv >=94J；Hardness HB
≥393。
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1-5:
Use the element of different content, prepare alloy material, have employed altogether 5 kinds of different joining
Side, the composition of each element is shown in Table 1, in table 1, is weight/mass percentage composition value.
The composition of various elements in table 1 embodiment 1-5
Preparation method:
(1) take required chemical element according to table 1, smelt at non-vacuum induction furnace, melting
Journey regulates the content of chemical element so that it is weight percent such as table 1:
And the content that controls impurity element is the lowest, pour into from power consumption after AOD refines
Pole；
(2) by consutrode remelting refining in electroslag furnace, impurity element is reduced further
Content so that it is meet following requirement:
S≤0.005 (percentage by weight) P≤0.020 (percentage by weight)
N≤0.030 (percentage by weight) V≤0.10 (percentage by weight)
After each constituent content of sample analysis is qualified, make electroslag ingot；
(3) 2000T press is used to be forged into rod iron after being heated by electroslag ingot；
(4) carrying out annealing after rod iron forging to be heat-treated, step and technological parameter are as follows:
Rod iron is heated to 621 ± 14 DEG C, and after being incubated 6～30 hours, stove is cooled to 500 DEG C of skies of coming out of the stove
Cold.
(5) rod iron surface processes, and finished product rod iron carries out surface car light and processes, eliminate surface
Defect also makes rod iron size, shape, surface quality meet design requirement, prepares finished product rod iron；
(6) inspection by sampling mechanical property on finished product rod iron, carries out tensile test at room temperature；
Embodiment 6
Material properties test
Inspection by sampling mechanical property on finished product rod iron, carries out the mechanical property test of correspondence；
Sample heat treatment step and technological parameter are as follows:
1), Nb/C=13～15
Solution treatment: 1038 ± 5 DEG C of times 40～180 minutes types of cooling: oil cold or
The suitable medium cooling cold with oil of person's cooling rate；
Ageing Treatment: 515 ± 5 DEG C of times 8～10 hours types of cooling: air cooling.
2), Nb/C=9～12
Solution treatment: 1038 ± 5 DEG C of times 40～180 minutes types of cooling: oil cold or
The suitable medium cooling cold with oil of person's cooling rate；
Ageing Treatment: 500 ± 5 DEG C of times 8～10 hours types of cooling: air cooling.
Finished product rod iron Progressive symmetric erythrokeratodermia obtained by embodiment 1-5 can be tested
Through tensile test at room temperature, result shows that its mechanical property is fully achieved design requirement, examination
Test result as follows:
Room temperature tensile:
Performance data under the conditions of 700 DEG C/600Mpa:
It can be seen from the results above that the compressor blade that this material manufactures, it is possible to meet and calm the anger
The requirement of machine applied at elevated temperature condition.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention,
All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention,
Should be included within the scope of the present invention.
Claims (6)
1. a high-property heat resistant steel, it is characterised in that: its chemical composition, by weight percentage
It is calculated as:
C 0.03～0.05%
Cr 14.00～16.00%
Mo 0.60～1.00%
Ni 6.20～6.80%
Cu 1.35～1.75%
Mn 0.30～0.80%
Nb 0.24～0.75%
Si 0.20～0.50%,
Surplus is Fe.
High-property heat resistant steel the most according to claim 1, it is characterised in that: described material
In, contained impurity, by mass percentage:
P≤0.020% S≤0.005%
N≤0.030% V≤0.100%.
3. the high-property heat resistant steel described in claim 1 or 2, it is characterised in that: include following
Step:
(1) press component ratio and weigh raw material, then carry out just refining, smelting temperature
1580～1620 DEG C, obtain molten steel；
(2) molten steel of step (1) gained is refined, pour into consutrode；
(3) consutrode of step (2) gained is carried out remelting refining, make electroslag ingot；
(4) it is forged into rod iron after being heated by the electroslag ingot of step (3) gained；
(5) carry out annealing after being forged by step (4) gained rod iron to be heat-treated, step and technique ginseng
Number is as follows:
Rod iron is heated to 607～635 DEG C, and after being incubated 6～30 hours, stove is cooled to 500 DEG C of skies of coming out of the stove
Cold, then carry out surface process, to obtain final product.
The preparation method of high-property heat resistant steel the most according to claim 3, its feature exists
In: in step (1), just carry out in non-vacuum induction furnace during refining.
The preparation method of high-property heat resistant steel the most according to claim 3, its feature exists
In: step (2) is carried out in AOD refining furnace.
6. the application of the high-property heat resistant steel described in claim 1 or 2, it is characterised in that will
Described high-property heat resistant steel is used for compressor blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610232172.0A CN105886949A (en) | 2016-04-14 | 2016-04-14 | High-performance heat resistant steel, and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610232172.0A CN105886949A (en) | 2016-04-14 | 2016-04-14 | High-performance heat resistant steel, and preparation method and application thereof |
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| CN105886949A true CN105886949A (en) | 2016-08-24 |
Family
ID=56704824
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| CN201610232172.0A Pending CN105886949A (en) | 2016-04-14 | 2016-04-14 | High-performance heat resistant steel, and preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282729A (en) * | 2016-08-31 | 2017-01-04 | 彭书成 | A kind of superalloy and preparation method thereof |
| CN109385571A (en) * | 2018-10-11 | 2019-02-26 | 中国航发成都发动机有限公司 | A kind of heat-resistance stainless steel material and preparation method thereof |
| CN109852775A (en) * | 2018-11-30 | 2019-06-07 | 什邡市三裕锻件有限公司 | A kind of heat treatment after forging technique of large scale low-carbon alloy steel forging |
| CN110863115A (en) * | 2019-11-29 | 2020-03-06 | 四川六合特种金属材料股份有限公司 | Method for improving high-temperature endurance performance of blade steel X19CrMoNbVN11-1 |
| CN114635075A (en) * | 2020-12-15 | 2022-06-17 | 上海电气电站设备有限公司 | High-strength high-ductility and toughness blade material |
| EP4083250A1 (en) * | 2021-04-27 | 2022-11-02 | General Electric Company | Precipitation-hardened stainless steel alloys |
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| JPH108217A (en) * | 1996-06-14 | 1998-01-13 | Agency Of Ind Science & Technol | Stainless steel for steam turbine blade, excellent in pitting corrosion resistance |
| US20030102057A1 (en) * | 2001-10-23 | 2003-06-05 | Short John William | High-strength high-toughness precipitation-hardened steel |
| JP2003226943A (en) * | 2002-02-06 | 2003-08-15 | Toshiba Corp | High strength, high corrosion resistance steel, production method therefor and geothermal turbine blade |
| CN101892430A (en) * | 2009-02-04 | 2010-11-24 | 通用电气公司 | High corrosion resistance precipitation hardened martensitic stainless steel |
| CN102181789A (en) * | 2011-04-27 | 2011-09-14 | 四川六合锻造股份有限公司 | Refractory steel material for supercritical turbine blade and preparation method thereof |
-
2016
- 2016-04-14 CN CN201610232172.0A patent/CN105886949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH108217A (en) * | 1996-06-14 | 1998-01-13 | Agency Of Ind Science & Technol | Stainless steel for steam turbine blade, excellent in pitting corrosion resistance |
| US20030102057A1 (en) * | 2001-10-23 | 2003-06-05 | Short John William | High-strength high-toughness precipitation-hardened steel |
| JP2003226943A (en) * | 2002-02-06 | 2003-08-15 | Toshiba Corp | High strength, high corrosion resistance steel, production method therefor and geothermal turbine blade |
| CN101892430A (en) * | 2009-02-04 | 2010-11-24 | 通用电气公司 | High corrosion resistance precipitation hardened martensitic stainless steel |
| CN102181789A (en) * | 2011-04-27 | 2011-09-14 | 四川六合锻造股份有限公司 | Refractory steel material for supercritical turbine blade and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282729A (en) * | 2016-08-31 | 2017-01-04 | 彭书成 | A kind of superalloy and preparation method thereof |
| CN109385571A (en) * | 2018-10-11 | 2019-02-26 | 中国航发成都发动机有限公司 | A kind of heat-resistance stainless steel material and preparation method thereof |
| CN109852775A (en) * | 2018-11-30 | 2019-06-07 | 什邡市三裕锻件有限公司 | A kind of heat treatment after forging technique of large scale low-carbon alloy steel forging |
| CN110863115A (en) * | 2019-11-29 | 2020-03-06 | 四川六合特种金属材料股份有限公司 | Method for improving high-temperature endurance performance of blade steel X19CrMoNbVN11-1 |
| CN110863115B (en) * | 2019-11-29 | 2021-08-20 | 四川六合特种金属材料股份有限公司 | Method for improving high-temperature endurance performance of blade steel X19CrMoNbVN11-1 |
| CN114635075A (en) * | 2020-12-15 | 2022-06-17 | 上海电气电站设备有限公司 | High-strength high-ductility and toughness blade material |
| EP4083250A1 (en) * | 2021-04-27 | 2022-11-02 | General Electric Company | Precipitation-hardened stainless steel alloys |
| US11788177B2 (en) | 2021-04-27 | 2023-10-17 | General Electric Company | Precipitation-hardened stainless steel alloys |
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Application publication date: 20160824 |