CN105937014A - Blade steel material of compressor of gas turbine and preparation method thereof - Google Patents

Blade steel material of compressor of gas turbine and preparation method thereof Download PDF

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Publication number
CN105937014A
CN105937014A CN201610345284.7A CN201610345284A CN105937014A CN 105937014 A CN105937014 A CN 105937014A CN 201610345284 A CN201610345284 A CN 201610345284A CN 105937014 A CN105937014 A CN 105937014A
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China
Prior art keywords
gas turbine
molten steel
preparation
steel material
temperature
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CN201610345284.7A
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Chinese (zh)
Inventor
李建
雷德江
黄志永
刘永新
张华国
丁勇
高刚毅
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SICHUAN LIUHE FORGING Co Ltd
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SICHUAN LIUHE FORGING Co Ltd
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Priority to CN201610345284.7A priority Critical patent/CN105937014A/en
Publication of CN105937014A publication Critical patent/CN105937014A/en
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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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002—Hybrid process, e.g. forging following casting
    • 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
    • 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
    • C22C38/04—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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten

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  • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention discloses a blade steel material of a compressor of a gas turbine and a preparation method thereof. The blade steel material is composed of, by weight, 0.08-0.13% of C, 0.1-0.35% of Si, 0.6-0.9% of Mn, 0.0001-0.025% of P, 0.0001-0.020% of S, 11.4-12.5% of Cr, 2.2-2.8% of Ni, 1.6-1.8% of Mo, 0.25-0.4% of V, 0.02-0.04% of N and the balance Fe and inevitable impurity elements, and the impurity elements are composed of, by weight, 0-0.005% of Ag, 0-0.005% of Pb and 0-0.10% of Sn.

Description

Gas turbine blower Blade Steel material and preparation method thereof
Technical field
The present invention relates to alloy material, particularly relate to gas turbine blower Blade Steel material and Preparation method.
Background technology
Compressor is converted to the vitals of heat energy as kinetic energy in gas turbine, and its blade is not only Bear top load effect, also subject to centrifugal force, the Circulation of twisting resistance, so to blade material Material had both required high intensity index, and the toughness index also having had, especially to material diatropism Energy, vertically and horizontally mechanical property difference and FATT50Requiring the highest, current domestic Blade Steel material is difficult To meet the requirement of compressor blade.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of prior art, it is provided that combustion gas Turbine compressor blade Steel material.
In order to realize foregoing invention purpose, the invention provides techniques below scheme:
Gas turbine blower Blade Steel material, it has a following composition:
C:0.08wt%～0.13wt%
Si:0.1wt%～0.35wt%
Mn:0.6wt%～0.9wt%
P:0.0001wt%～0.025wt%
S:0.0001wt%～0.020wt%
Cr:11.4wt%～12.5wt%
Ni:2.2wt%～2.8wt%
Mo:1.6wt%～1.8wt%
V:0.25wt%～0.4wt%
N:0.02wt%～0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0～0.005wt%
Pb:0～0.005wt%
Sn:0～0.10wt%.
As preferably, above-mentioned gas turbine blower Blade Steel material, it has a following composition:
C:0.09wt%～0.12wt%
Si:0.19wt%～0.29wt%
Mn:0.7wt%～0.8wt%
P:0.0001wt%～0.02wt%
S:0.0001wt%～0.01wt%
Cr:11.9wt%～12.2wt%
Ni:2.3wt%～2.7wt%
Mo:1.69wt%～1.78wt%
V:0.31wt%～0.4wt%
N:0.03wt%～0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0～0.005wt%
Pb:0～0.005wt%
Sn:0～0.10wt%.
The preparation method of above-mentioned gas turbine blower Blade Steel material, comprises the steps:
(1) by above-mentioned elemental composition proportioning alloyage, equal by non-vacuum induction furnace melting Homogenize, make molten steel；
(2) molten steel of step (1) is blended in LF external refining stove carries out refine, make Refined molten steel；
(3) by the refined molten steel of step (2), it is positioned over VD refining furnace vacuum degassing to enter One step refine, sample analysis after broken sky, add N, the full element of sample analysis by amount of calculation, adjust It is made into point, makes high-quality molten steel；
(4) by the high-quality molten steel of step (3), bet method is used to pour into electrode bar；
(5) using the electrode bar of step (4) as electrode, it is positioned in electroslag furnace and carries out secondary Remelting purifies, and forms ESR ingot；
(6) ESR ingot step (5) made, is heated to 1200 DEG C～1240 DEG C, insulation Time 30～45h, pull out through two upsettings two with press, make steel billet；
(7) steel billet step (6) made, is heated to 1140 DEG C～1170 DEG C, during insulation Between forge after 1～2.5h and become a useful person, and air cooling is to room temperature；
(8) bar step (7) made or section bar, load car type furnace and be heated to 678 DEG C ～715 DEG C make annealing treatment, after insulation 20-30h, come out of the stove air cooling to room temperature.
As preferably, the temperature of above-mentioned steps (6) described heating is preferably 1207 DEG C ～1230 DEG C, temperature retention time 32～40h.
As preferably, the temperature of above-mentioned steps (7) described heating is preferably 1142 DEG C ～1160 DEG C, temperature retention time preferably 1～2h.
As preferably, the temperature of above-mentioned steps (8) described heating is preferably 680 DEG C～710 DEG C.
Compared with prior art, beneficial effects of the present invention: gas turbine blower leaf of the present invention Sheet Steel material has high intensity, high tenacity, little vertically and horizontally mechanical property difference (≤10%) And of a sufficiently low FATT50(as little as-40 DEG C), preferably meet gas turbine blower Blade Steel Requirement.Gas turbine blower Blade Steel material preparation method of the present invention easily operates, and is suitable for work Industry metaplasia is produced, and preparation method of the present invention makes gas turbine blower Blade Steel domesticize, greatly drops Low gas turbine compressor blade steel cost, promotes economic benefit.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.But should be by This is interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to below example, all based on the present invention The technology that content is realized belongs to the scope of the present invention.
Embodiment 1 gas turbine blower Blade Steel material and preparation method thereof
Gas turbine blower Blade Steel material, it has a following composition:
C:0.11wt%
Si:0.27wt%
Mn:0.74wt%
P:0.018wt%
S:0.003wt%
Cr:12.1wt%
Ni:2.61wt%
Mo:1.74wt%
V:0.32wt%
N:0.033wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0.002wt%
Pb:0.001wt%
Sn:0.07wt%.
The preparation method of this example gas turbine blower Blade Steel material, comprises the steps:
(1) by above-mentioned elemental composition proportioning alloyage, equal by non-vacuum induction furnace melting Homogenize, make molten steel；
(2) molten steel of step (1) is blended in LF external refining stove carries out refine, make Refined molten steel；
(3) by the refined molten steel of step (2), it is positioned over VD refining furnace vacuum degassing to enter One step refine, sample analysis after broken sky, add N, the full element of sample analysis by amount of calculation, adjust It is made into point, makes high-quality molten steel；
(4) by the high-quality molten steel of step (3), bet method is used to pour into electrode bar；
(5) using the electrode bar of step (4) as electrode, it is positioned in electroslag furnace and carries out secondary Remelting purifies, and forms ESR ingot；
(6) ESR ingot step (5) made, is heated to 1220 ± 3 DEG C, is incubated 36h, Pull out through two upsettings two with press, make steel billet；
(7) steel billet step (6) made, is heated to 1150 ± 3 DEG C, is incubated 1.5h Rear forging is become a useful person, and air cooling is to room temperature；
(8) bar step (7) made or section bar, load car type furnace be heated to 690 ± 3 DEG C make annealing treatment, and insulation 30h comes out of the stove air cooling to room temperature.
This example gas turbine blower Blade Steel material has outstanding performance, and details are shown in Table 1.
Embodiment 2 gas turbine blower Blade Steel material
Gas turbine blower Blade Steel material, it has a following composition:
C:0.113wt%
Si:0.265wt%
Mn:0.75wt%
P:0.019wt%
S:0.004wt%
Cr:12.16wt%
Ni:2.59wt%
Mo:1.73wt%
V:0.34wt%
N:0.034wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0.001wt%
Pb:0.002wt%
Sn:0.08wt%.
The preparation method of this example gas turbine blower Blade Steel material, comprises the steps:
(1) by above-mentioned elemental composition proportioning alloyage, equal by non-vacuum induction furnace melting Homogenize, make molten steel；
(2) molten steel of step (1) is blended in LF external refining stove carries out refine, make Refined molten steel；
(3) by the refined molten steel of step (2), it is positioned over VD refining furnace vacuum degassing to enter One step refine, sample analysis after broken sky, add N, the full element of sample analysis by amount of calculation, adjust It is made into point, makes high-quality molten steel；
(4) by the high-quality molten steel of step (3), bet method is used to pour into electrode bar；
(5) using the electrode bar of step (4) as electrode, it is positioned in electroslag furnace and carries out secondary Remelting purifies, and forms ESR ingot；
(6) ESR ingot step (5) made, is heated to 1230 ± 3 DEG C, is incubated 31h, Pull out through two upsettings two with press, make steel billet；
(7) steel billet step (6) made, is heated to 1160 ± 3 DEG C, after insulation 1h Forging is become a useful person, and air cooling is to room temperature；
(8) bar step (7) made or section bar, load car type furnace be heated to 710 ± 3 DEG C make annealing treatment, and insulation 26h comes out of the stove air cooling to room temperature.
This example gas turbine blower Blade Steel material has outstanding performance, and details are shown in Table 1.
Embodiment 3 gas turbine blower Blade Steel material and preparation method thereof
Gas turbine blower Blade Steel material, it has a following composition:
C:0.108wt%
Si:0.258wt%
Mn:0.73wt%
P:0.018wt%
S:0.006wt%
Cr:11.94wt%
Ni:2.63wt%
Mo:1.72wt%
V:0.36wt%
N:0.031wt%
Fe: surplus.
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0.001wt%
Pb:0.002wt%
Sn:0.08wt%.
The preparation method of this example gas turbine blower Blade Steel material, comprises the steps:
(1) by above-mentioned elemental composition proportioning alloyage, equal by non-vacuum induction furnace melting Homogenize, make molten steel；
(2) molten steel of step (1) is blended in LF external refining stove carries out refine, make Refined molten steel；
(3) by the refined molten steel of step (2), it is positioned over VD refining furnace vacuum degassing to enter One step refine, sample analysis after broken sky, add N, the full element of sample analysis by amount of calculation, adjust It is made into point, makes high-quality molten steel；
(4) by the high-quality molten steel of step (3), bet method is used to pour into electrode bar；
(5) using the electrode bar of step (4) as electrode, it is positioned in electroslag furnace and carries out secondary Remelting purifies, and forms ESR ingot；
(6) ESR ingot step (5) made, is heated to 1200 ± 3 DEG C, is incubated 40h, Pull out through two upsettings two with press, make steel billet；
(7) steel billet step (6) made, is heated to 1142 ± 3 DEG C, after insulation 2h Forging is become a useful person, and air cooling is to room temperature；
(8) bar step (7) made or section bar, load car type furnace be heated to 680 ± 3 DEG C make annealing treatment, and insulation 30h comes out of the stove air cooling to room temperature.
Embodiment 1-3 gas turbine blower Blade Steel material has outstanding performance, and details are such as Following table table 1:
Table 1
Embodiment 4 gas turbine blower Blade Steel material
Gas turbine blower Blade Steel material, it has a following composition:
C:0.09wt%
Si:0.29wt%
Mn:0.7wt%
P:0.0001wt%
S:0.01wt%
Cr:11.9wt%
Ni:2.3wt%
Mo:1.78wt%
V:0.4wt%
N:0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0.004wt%
Pb:0.002wt%
Sn:0.03wt%.
Embodiment 5 gas turbine blower Blade Steel material
Gas turbine blower Blade Steel material, it has a following composition:
C:0.12wt%
Si:0.19wt%
Mn:0.7wt%～0.8wt%
P:0.0001wt%～0.02wt%
S:0.0001wt%～0.01wt%
Cr:11.9wt%～12.2wt%
Ni:2.3wt%～2.7wt%
Mo:1.69wt%～1.78wt%
V:0.31wt%～0.4wt%
N:0.03wt%～0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0.001wt%
Pb:0.002wt%
Sn:0.009wt%.
Embodiment 6 gas turbine blower Blade Steel material
Gas turbine blower Blade Steel material, it has a following composition:
C:0.08wt%
Si:0.35wt%
Mn:0.9wt%
P:0.021wt%
S:0.011wt%
Cr:11.4wt%
Ni:2.8wt%
Mo:1.8wt%
V:0.25wt%
N:0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0.003wt%
Pb:0.005wt%
Sn:0.10wt%.

Claims (7)

1. gas turbine blower Blade Steel material, it is characterised in that it has a following composition:
C:0.08wt%～0.13wt%
Si:0.1wt%～0.35wt%
Mn:0.6wt%～0.9wt%
P:0.0001wt%～0.025wt%
S:0.0001wt%～0.020wt%
Cr:11.4wt%～12.5wt%
Ni:2.2wt%～2.8wt%
Mo:1.6wt%～1.8wt%
V:0.25wt%～0.4wt%
N:0.02wt%～0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0～0.005wt%
Pb:0～0.005wt%
Sn:0～0.10wt%.
Gas turbine blower Blade Steel material the most according to claim 1, its feature Being, it has a following composition:
C:0.09wt%～0.12wt%
Si:0.19wt%～0.29wt%
Mn:0.7wt%～0.8wt%
P:0.0001wt%～0.02wt%
S:0.0001wt%～0.01wt%
Cr:11.9wt%～12.2wt%
Ni:2.3wt%～2.7wt%
Mo:1.69wt%～1.78wt%
V:0.31wt%～0.4wt%
N:0.03wt%～0.04wt%
Fe: surplus；
And inevitable impurity element, described impurity amount of element limit and content as:
Ag:0～0.005wt%
Pb:0～0.005wt%
Sn:0～0.10wt%.
The system of gas turbine blower Blade Steel material the most according to claim 1 and 2 Preparation Method, it is characterised in that comprise the steps:
(1) by above-mentioned elemental composition proportioning alloyage, equal by non-vacuum induction furnace melting Homogenize, make molten steel；
(2) molten steel of step (1) is blended in LF external refining stove carries out refine, make Refined molten steel；
(3) by the refined molten steel of step (2), it is positioned over VD refining furnace vacuum degassing to enter One step refine, sample analysis after broken sky, add N, the full element of sample analysis by amount of calculation, adjust It is made into point, makes high-quality molten steel；
(4) by the high-quality molten steel of step (3), bet method is used to pour into electrode bar；
(5) using the electrode bar of step (4) as electrode, it is positioned in electroslag furnace and carries out secondary Remelting purifies, and forms ESR ingot；
(6) ESR ingot step (5) made, is heated to 1200 DEG C～1240 DEG C, insulation Time 30～45h, pull out through two upsettings two with press, make steel billet；
(7) steel billet step (6) made, is heated to 1140 DEG C～1170 DEG C, during insulation Between forge after 1～2.5h and become a useful person, and air cooling is to room temperature；
(8) bar step (7) made or section bar, load car type furnace and be heated to 678 DEG C ～715 DEG C make annealing treatment, after insulation 20-30h, come out of the stove air cooling to room temperature.
Preparation method the most according to claim 3, it is characterised in that step (6) institute The temperature stating heating is 1207 DEG C～1230 DEG C, temperature retention time 32～40h.
5. according to the preparation method described in claim 3 or 4, it is characterised in that step (7) The temperature of described heating is 1142 DEG C～1160 DEG C, temperature retention time 1～2h.
6. according to the preparation method described in claim 3 or 4, it is characterised in that step (8) The temperature of described heating is 680 DEG C～710 DEG C.
Preparation method the most according to claim 5, it is characterised in that step (8) institute The temperature stating heating is 680 DEG C～710 DEG C.
CN201610345284.7A 2016-05-21 2016-05-21 Blade steel material of compressor of gas turbine and preparation method thereof Pending CN105937014A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106381374A (en) * 2016-11-30 2017-02-08 四川六合锻造股份有限公司 Method for improving transverse impact toughness of 1Cr12Ni3Mo2VN

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101117690A (en) * 2007-09-06 2008-02-06 东方电气集团东方汽轮机有限公司 Steel material for steam turbine final blade and heat treating process thereof
CN101538686A (en) * 2008-03-21 2009-09-23 宝山钢铁股份有限公司 Martensite precipitation hardening stainless steel for structural member and manufacturing method thereof
CN102191439A (en) * 2011-04-27 2011-09-21 四川六合锻造股份有限公司 Stainless steel material used for blades and bolts of nuclear power steam turbine and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101117690A (en) * 2007-09-06 2008-02-06 东方电气集团东方汽轮机有限公司 Steel material for steam turbine final blade and heat treating process thereof
CN101538686A (en) * 2008-03-21 2009-09-23 宝山钢铁股份有限公司 Martensite precipitation hardening stainless steel for structural member and manufacturing method thereof
CN102191439A (en) * 2011-04-27 2011-09-21 四川六合锻造股份有限公司 Stainless steel material used for blades and bolts of nuclear power steam turbine and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106381374A (en) * 2016-11-30 2017-02-08 四川六合锻造股份有限公司 Method for improving transverse impact toughness of 1Cr12Ni3Mo2VN

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Application publication date: 20160914