CN104404392A - Turbine rotor alloy - Google Patents
Turbine rotor alloy Download PDFInfo
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- CN104404392A CN104404392A CN201410615432.3A CN201410615432A CN104404392A CN 104404392 A CN104404392 A CN 104404392A CN 201410615432 A CN201410615432 A CN 201410615432A CN 104404392 A CN104404392 A CN 104404392A
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- turbine rotor
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- rotor alloy
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Abstract
The invention discloses a turbine rotor alloy. The alloy comprises 2-2.5% of Cr, 0.3-0.8% of Ni, 1-1.5% of Mo, 0.5-1% of Pb, 0.7-1% of Mn, 0.2-0.3% of V, 0.35-0.45% of C, 0.1% or less of S, and the balance of Fe. Compared with present alloy steel, the turbine rotor alloy has the advantages of obvious improvement of the impact energy of materials of present turbine rotors, improvement of the toughness of the materials, and suitableness for being used as a high temperature turbine rotor material.
Description
Technical field
The invention belongs to field of alloy material, be specifically related to a kind of turbine rotor alloy.
Background technology
Turbine rotor is the important core parts of steam turbine, because of the rigors of its Working environment, rotor alloy material is needed to have good hot strength, generally select steel alloy, as 30Cr1Mo1V, but the toughness of this steel alloy is relatively poor, its range of application is limited, the demand of high-temperature steam turbine rotor can not be met.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provides a kind of turbine rotor alloy.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of turbine rotor alloy, alloying element and percentage composition as follows: Cr 2-2.5, Ni 0.3-0.8, Mo 1-1.5, Pb 0.5-1, Mn 0.7-1, V 0.2-0.3, C 0.35-0.45, Si≤0.1, surplus is Fe.
Containing impurity such as inevitable P, S in alloy, but foreign matter content is more few better.
Turbine rotor alloy of the present invention, compared with existing steel alloy, can significantly improve the ballistic work of existing turbine rotor material, improve the toughness of material, be particularly suitable for the material as high-temperature steam turbine rotor.
Embodiment
Below in conjunction with preferred embodiment, the present invention will be described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1
The weight percent of each element of turbine rotor alloy is: Cr 2, Ni 0.8, Mo 1, Pb 0.5, Mn 0.8, V 0.2-0.3, C 0.35-0.45, Si≤0.1, and surplus is Fe, smelts according to a conventional method and obtains.The yield strength of alloy: 690MPa, unit elongation: 20%, relative reduction in area: 72.0%, ballistic work A
kv: 171J.
Embodiment 2
The weight percent of each element of turbine rotor alloy is: Cr 2.5, Ni 0.3, Mo 1.5, Pb 0.8, Mn 0.7, V 0.2-0.3, C 0.35-0.45, Si≤0.1, and surplus is Fe, smelts according to a conventional method and obtains.The yield strength of alloy: 640MPa, unit elongation: 23%, relative reduction in area: 73.0%, ballistic work A
kv: 180J.
Embodiment 3
The weight percent of each element of turbine rotor alloy is: Cr 2.5, Ni 0.5, Mo 1, Pb 1, Mn 0.7, V 0.2-0.3, C 0.35-0.45, Si≤0.1, and surplus is Fe, smelts according to a conventional method and obtains.The yield strength of alloy: 685MPa, unit elongation: 21%, relative reduction in area: 72.6%, ballistic work A
kv: 185J.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a turbine rotor alloy, alloying element and percentage composition as follows: Cr 2-2.5, Ni 0.3-0.8, Mo 1-1.5, Pb 0.5-1, Mn 0.7-1, V 0.2-0.3, C 0.35-0.45, Si≤0.1, surplus is Fe.
2. turbine rotor alloy according to claim 1, is characterized in that, described alloying element and percentage composition as follows: Cr 2-2.5, Ni 0.3-0.8, Mo 1-1.5, Pb 1, Mn 0.7-1, V 0.2-0.3, C 0.35-0.45, Si≤0.1, surplus is Fe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410615432.3A CN104404392A (en) | 2014-11-05 | 2014-11-05 | Turbine rotor alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410615432.3A CN104404392A (en) | 2014-11-05 | 2014-11-05 | Turbine rotor alloy |
Publications (1)
Publication Number | Publication Date |
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CN104404392A true CN104404392A (en) | 2015-03-11 |
Family
ID=52642055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201410615432.3A Pending CN104404392A (en) | 2014-11-05 | 2014-11-05 | Turbine rotor alloy |
Country Status (1)
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CN (1) | CN104404392A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104967232A (en) * | 2015-07-06 | 2015-10-07 | 无锡阳工机械制造有限公司 | Generator rotor prolonged in service life |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1385548A (en) * | 2001-03-05 | 2002-12-18 | 石田清仁 | Easy cutting tool steel |
EP1275745A1 (en) * | 1999-10-04 | 2003-01-15 | Mitsubishi Heavy Industries, Ltd. | Low-alloy heat-resistant steel, process for producing the same, and turbine rotor |
CN101649424A (en) * | 2009-08-18 | 2010-02-17 | 泰州市永昌冶金设备有限公司 | Novel heat resistant steel |
-
2014
- 2014-11-05 CN CN201410615432.3A patent/CN104404392A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1275745A1 (en) * | 1999-10-04 | 2003-01-15 | Mitsubishi Heavy Industries, Ltd. | Low-alloy heat-resistant steel, process for producing the same, and turbine rotor |
CN1385548A (en) * | 2001-03-05 | 2002-12-18 | 石田清仁 | Easy cutting tool steel |
CN101649424A (en) * | 2009-08-18 | 2010-02-17 | 泰州市永昌冶金设备有限公司 | Novel heat resistant steel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104967232A (en) * | 2015-07-06 | 2015-10-07 | 无锡阳工机械制造有限公司 | Generator rotor prolonged in service life |
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Application publication date: 20150311 |
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RJ01 | Rejection of invention patent application after publication |