CN104388839B - Alloy for steam turbine rotor - Google Patents

Alloy for steam turbine rotor Download PDF

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Publication number
CN104388839B
CN104388839B CN201410615152.2A CN201410615152A CN104388839B CN 104388839 B CN104388839 B CN 104388839B CN 201410615152 A CN201410615152 A CN 201410615152A CN 104388839 B CN104388839 B CN 104388839B
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China
Prior art keywords
turbine rotor
alloy
steam turbine
present
balance
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Application number
CN201410615152.2A
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Chinese (zh)
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CN104388839A (en
Inventor
金照宇
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Shandong Othea Jianyang Carbon Black Co ltd
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Individual
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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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The invention discloses an alloy for a steam turbine rotor. The alloy for the steam turbine rotor comprises the following elements: 5-8% of Ni, 1-1.5% of Mo, 0.1-0.3% of Pb, 0.2-0.5% of Co, 0.7-1% of Mn, 0.2-0.3% of V, 0.25-0.35% of C, less than or equal to 0.1% of Si and the balance of Fe. Compared with the existing alloy steel, the alloy for the steam turbine rotor can be used for obviously improving impact energy of a material for the steam turbine rotor and improving toughness of the material, so that the alloy for the steam turbine rotor especially can serve as a material for a high temperature steam turbine rotor.

Description

A kind of turbine rotor alloy
Technical field
The invention belongs to field of alloy material is and in particular to a kind of turbine rotor alloy.
Background technology
Turbine rotor is the important core part of steam turbine, rigors because of its working environment, rotor alloy material is needed to have good elevated temperature strength, typically select steel alloy, as 30cr1mo1v, but the toughness of this steel alloy is relatively poor so that its range of application is limited to it is impossible to meet the demand of high-temperature steam turbine rotor.
Content of the invention
The technical problem to be solved in the present invention is to overcome existing defect, there is provided a kind of turbine rotor alloy.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
A kind of turbine rotor alloy, alloying element and percentage composition are as follows: ni 5-8, mo 1-1.5, pb 0.1-0.3, co 0.2-0.5, mn 0.7-1, v 0.2-0.3, c 0.25-0.35, si≤0.1, balance of fe.
Contain the impurity such as inevitable p, s in alloy, but impurity content is more few better.
The 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 well suited as the material of high-temperature steam turbine rotor.
Specific embodiment
Below in conjunction with preferred embodiment, the present invention will be described it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Embodiment 1
The percentage by weight of turbine rotor alloy each element is: ni 8, mo 1, pb 0.3, co 0.3, mn 1, v 0.3, c 0.30, si0.07, balance of fe, smelts according to a conventional method and obtains.The yield strength of alloy: 720mpa, elongation percentage: 17%, the contraction percentage of area: 65.0%, ballistic work akv:180j.
Embodiment 2
The percentage by weight of turbine rotor alloy each element is: ni 5, mo 1.5, pb 0.1, co 0.2, mn 1, v 0.2, c 0.25, si0.07, balance of fe, smelts according to a conventional method and obtains.The yield strength of alloy: 680mpa, elongation percentage: 23%, the contraction percentage of area: 72.0%, ballistic work akv:175j.
Embodiment 3
The percentage by weight of turbine rotor alloy each element is: ni 6, mo 1.1, pb 0.3, co 0.5, mn 0.7, v 0.3, c 0.35, si0.06, balance of fe, smelts according to a conventional method and obtains.The yield strength of alloy: 710mpa, elongation percentage: 19%, the contraction percentage of area: 68.2%, ballistic work akv:167j.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent to wherein some technical characteristics.All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included within the scope of the present invention.

Claims (2)

1. a kind of turbine rotor alloy, alloying element and weight percentage are as follows: ni 5-8, mo 1-1.5, pb 0.1-0.3, co 0.2-0.5, mn 0.7-1, v 0.2-0.3, c 0.25-0.35, si≤0.1, balance of fe.
2. turbine rotor alloy according to claim 1 is it is characterised in that described alloying element and weight percentage are as follows: ni 8, mo 1-1.5, pb 0.3, co 0.2-0.5, mn 0.7-1, v 0.2-0.3, c 0.25-0.35, si≤0.1, balance of fe.
CN201410615152.2A 2014-11-05 2014-11-05 Alloy for steam turbine rotor Active CN104388839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410615152.2A CN104388839B (en) 2014-11-05 2014-11-05 Alloy for steam turbine rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410615152.2A CN104388839B (en) 2014-11-05 2014-11-05 Alloy for steam turbine rotor

Publications (2)

Publication Number Publication Date
CN104388839A CN104388839A (en) 2015-03-04
CN104388839B true CN104388839B (en) 2017-01-18

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Application Number Title Priority Date Filing Date
CN201410615152.2A Active CN104388839B (en) 2014-11-05 2014-11-05 Alloy for steam turbine rotor

Country Status (1)

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CN (1) CN104388839B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711677A (en) * 1986-07-18 1987-12-08 The Garrett Corporation High temperature bushing alloy
JP3596751B2 (en) * 1999-12-17 2004-12-02 トヨタ自動車株式会社 Hard particle for blending sintered alloy, wear-resistant iron-based sintered alloy, method for producing wear-resistant iron-based sintered alloy, and valve seat
JP4844188B2 (en) * 2006-03-23 2011-12-28 株式会社日立製作所 casing
TWI341332B (en) * 2008-01-07 2011-05-01 Nippon Steel Corp Wear-resistant steel sheet having excellent wear resistnace at high temperatures and excellent bending workability and method for manufacturing the same
CN102534420B (en) * 2012-03-30 2013-09-18 大连裕龙高速钢有限公司 Low-nickel high performance heat-resistant steel
CN102877002A (en) * 2012-10-24 2013-01-16 章磊 Heat resistant steel for boiler parts and manufacture method of heat resistant steel

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Publication number Publication date
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Address after: A 322221 area in Zhejiang County of Pujiang Province before the Wu Ling Xiangtang Golden Village No. 4

Applicant after: Jin Zhaoyu

Address before: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan Spring Road No. 588

Applicant before: Wuxi Yanggong Machinery Manufacturing Co., Ltd.

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Address after: A 322221 area in Zhejiang County of Pujiang Province before the Wu Ling Xiangtang Golden Village No. 4

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Address before: 214000 Jiangsu city in Wuxi Province Economic Development Zone Huishan Spring Road No. 588

Applicant before: Wuxi Yanggong Machinery Manufacturing Co., Ltd.

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Inventor after: Zhou Hongxuan

Inventor after: Peng Lijuan

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Address after: 510507 Guangdong city of Guangzhou province Tianhe District Yanling Road No. 89, room 2110

Co-patentee after: Zhou Hongxuan

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Address before: A 322221 area in Zhejiang County of Pujiang Province before the Wu Ling Xiangtang Golden Village No. 4

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Address after: 277000 east of Shugang Road, west of Zhuqiao 2nd Road, north of Changzhuang 2nd Road, economic development zone, Xuecheng District, Zaozhuang City, Shandong Province

Patentee after: Shandong othea Jianyang carbon black Co.,Ltd.

Address before: 510000 two, Wanfu Road, Dongshan District, Guangzhou, Guangdong, two

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