CN104388839B - 一种汽轮机转子用合金 - Google Patents

一种汽轮机转子用合金 Download PDF

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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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turbine rotor
alloy
steam turbine
present
balance
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CN104388839A (zh
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金照宇
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Shandong Othea Jianyang Carbon Black Co ltd
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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

本发明公开一种汽轮机转子用合金，合金元素及百分含量如下：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，余量为Fe。本发明的汽轮机转子用合金与现有合金钢相比，能明显提高现有汽轮机转子用材料的冲击功，改善材料的韧性，特别适合于作为高温汽轮机转子的材料。

Description

一种汽轮机转子用合金
技术领域
本发明属于合金材料领域，具体涉及一种汽轮机转子用合金。
背景技术
汽轮机转子是汽轮机的重要核心部件，因其工作环境的苛刻要求，需要转子用合金材料具有良好的高温强度，一般选用合金钢，如30Cr1Mo1V，但这种合金钢的韧性相对较差，使得其应用范围受到限定，不能满足高温汽轮机转子的需求。
发明内容
本发明要解决的技术问题是克服现有的缺陷，提供了一种汽轮机转子用合金。
为了解决上述技术问题，本发明提供了如下的技术方案：
一种汽轮机转子用合金，合金元素及百分含量如下：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，余量为Fe。
合金中含有不可避免的P、S等杂质，但杂质含量越少越好。
本发明的汽轮机转子用合金与现有合金钢相比，能明显提高现有汽轮机转子用材料的冲击功，改善材料的韧性，特别适合于作为高温汽轮机转子的材料。
具体实施方式
以下结合优选实施例对本发明进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。
实施例1
汽轮机转子用合金各元素的重量百分比为：Ni 8，Mo 1，Pb 0.3，Co 0.3，Mn 1，V 0.3，C 0.30，Si0.07，余量为Fe，按常规方法冶炼得到。合金的屈服强度：720MPa，延伸率：17%，断面收缩率：65.0%，冲击功Akv:180J。
实施例2
汽轮机转子用合金各元素的重量百分比为：Ni 5，Mo 1.5，Pb 0.1，Co 0.2，Mn 1，V 0.2，C 0.25，Si0.07，余量为Fe，按常规方法冶炼得到。合金的屈服强度：680MPa，延伸率：23%，断面收缩率：72.0%，冲击功Akv:175J。
实施例3
汽轮机转子用合金各元素的重量百分比为：Ni 6，Mo 1.1，Pb 0.3，Co 0.5，Mn 0.7，V 0.3，C 0.35，Si0.06，余量为Fe，按常规方法冶炼得到。合金的屈服强度：710MPa，延伸率：19%，断面收缩率：68.2%，冲击功Akv:167J。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (2)

1.一种汽轮机转子用合金，合金元素及重量百分含量如下：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，余量为Fe。
2.根据权利要求1所述的汽轮机转子用合金，其特征在于，所述合金元素及重量百分含量如下：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，余量为Fe。
CN201410615152.2A 2014-11-05 2014-11-05 一种汽轮机转子用合金 Active CN104388839B (zh)

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* Cited by examiner, † Cited by third party
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CN104967232A (zh) * 2015-07-06 2015-10-07 无锡阳工机械制造有限公司 提高使用寿命的发电机转子

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Publication number Priority date Publication date Assignee Title
US4711677A (en) * 1986-07-18 1987-12-08 The Garrett Corporation High temperature bushing alloy
JP3596751B2 (ja) * 1999-12-17 2004-12-02 トヨタ自動車株式会社 焼結合金配合用硬質粒子、耐摩耗性鉄基焼結合金、耐摩耗性鉄基焼結合金の製造方法及びバルブシート
JP4844188B2 (ja) * 2006-03-23 2011-12-28 株式会社日立製作所 ケーシング
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 (zh) * 2012-03-30 2013-09-18 大连裕龙高速钢有限公司 一种低镍高性能耐热钢
CN102877002A (zh) * 2012-10-24 2013-01-16 章磊 一种用于锅炉零部件的耐热钢及其制作方法

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