JPS62170706A - Turbine blade - Google Patents
Turbine bladeInfo
- Publication number
- JPS62170706A JPS62170706A JP1333786A JP1333786A JPS62170706A JP S62170706 A JPS62170706 A JP S62170706A JP 1333786 A JP1333786 A JP 1333786A JP 1333786 A JP1333786 A JP 1333786A JP S62170706 A JPS62170706 A JP S62170706A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- turbine blade
- ceramics
- whisker
- resistance
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 229910001347 Stellite Inorganic materials 0.000 claims abstract description 4
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 24
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 10
- 239000013078 crystal Substances 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 19
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 229910001188 F alloy Inorganic materials 0.000 description 1
- 241000862969 Stella Species 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
繊維強化金属（ＦＲＭ）により被覆された耐食・耐エロ
ージヨン性を有するタービン翼に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a turbine blade coated with fiber reinforced metal (FRM) and having corrosion and erosion resistance properties.
従来、地熱タービンや蒸気タービン等のタービン翼には
、耐食・耐エロージヨン性向上を目的として、圧延及び
焼結等によって作られるステライト薄板のろう付は被覆
等が施されていた。BACKGROUND ART Conventionally, turbine blades of geothermal turbines, steam turbines, and the like have been coated with brazed stellite thin plates made by rolling, sintering, etc. for the purpose of improving corrosion resistance and erosion resistance.
しかし、前述した従来の方法で作られたタービン翼は、
地熱タービン、蒸気タービン等ノ耐食・耐エロージヨン
性を強く要求される所では、かなり条件がきびしく、充
分な性能のものを得ることが難しい。However, turbine blades made using the conventional method described above,
In places where corrosion resistance and erosion resistance are strongly required, such as geothermal turbines and steam turbines, the conditions are quite severe and it is difficult to obtain products with sufficient performance.
また、被覆材として用いられるステラ、イト薄板は、加
工が困難なこともあり硬さ、耐エロージヨン性及びコス
トの点でも充分でない等の不具合があった。In addition, the Stella and Ito thin plates used as coating materials are sometimes difficult to process and have disadvantages such as insufficient hardness, erosion resistance, and cost.
本発明は、タービン翼の耐食性・耐二ローション性を向
上させるために、タービン翼材料あるいはステ、ライト
をマトリックスとし、セラミックスウィスカまたは、セ
ラミックス短繊維を強化繊維とした繊維強化金属（ＦＲ
Ｍ）薄板をタービン翼面の一部もしくは全面にろう付は
等で被覆してなるタービン翼である。In order to improve the corrosion resistance and lotion resistance of turbine blades, the present invention utilizes fiber-reinforced metal (FR) using turbine blade material or steelite as a matrix and ceramic whiskers or ceramic short fibers as reinforcing fibers.
M) A turbine blade made by coating a thin plate on a part or the entire surface of the turbine blade with brazing, etc.
なお、発明に用いる強化繊維としては、ＳｉＣ。Note that the reinforcing fiber used in the invention is SiC.
５ｉａＮｉ 、 ＡｅｗＯｓ やＫｘ ０ ・６Ｔｉ
Ｃｈ等のチタン酸カリウム等のセラミックスウィスカ
あるいは、セラミックス短繊維が挙げられる。5iaNi, AewOs, Kx 0, 6Ti
Examples include ceramic whiskers such as potassium titanate such as Ch, or ceramic short fibers.
ＳｉＣウィスカ結晶構造は、立方晶系のα型、単結晶の
β型の２種類があるが、本発明では、一般に市販されて
いる直径が０．２〜０５μｍ、長さが１００〜２００μ
ｍのβ型単結晶が使用できる。There are two types of SiC whisker crystal structures: cubic α-type and single-crystal β-type.
β type single crystal of m can be used.
また、Ｓ ｉ ｓ Ｎ４ ウィスカとしては、一般に
市販されている直径が０．２〜０５μｍ、長さか５０〜
３００厨のα型針状単結晶のものが使用できる。また、
Ｍ２Ｏ３繊維としては、直径が３μｍ、長さが１００〜
２００ＩＩｊ？Ｉのものが使用できる。In addition, SiS N4 whiskers are generally commercially available with a diameter of 0.2 to 05 μm and a length of 50 to 50 μm.
300 mm α-type needle-like single crystal can be used. Also,
M2O3 fibers have a diameter of 3μm and a length of 100~
200IIj? I can be used.
一般的に、セラミックスウィスカやセラミックス短繊維
を強化繊維とした繊維強化金属は、セラミック系長繊維
で強化した繊維強化金属と比較して、繊維が均一に分散
するため、耐食・耐エロージヨン、あるいは耐摩耗性が
良好なことが期待できる。また、加工により薄板化が可
能となる。In general, fiber-reinforced metals made of ceramic whiskers or short ceramic fibers are more resistant to corrosion, erosion, or corrosion than fiber-reinforced metals made of long ceramic fibers because the fibers are more evenly dispersed. Good abrasion resistance can be expected. Additionally, it is possible to make the plate thinner through processing.
なお、タービン動翼では繊維強化金属（ＦＲＭ ）薄板
をタービン動翼の翼根部を包むようにして折り返して被
覆すると、タービン翼の耐食性・耐エロージヨン性の向
上のみならず、動翼に発生する遠心力の一部をＦＲＭが
分担するので翼根部の強度を向上することができる。In addition, for turbine rotor blades, if a fiber reinforced metal (FRM) thin plate is folded back to cover the blade root of the turbine rotor blade, it not only improves the corrosion resistance and erosion resistance of the turbine blade, but also reduces the centrifugal force generated in the rotor blade. Since the FRM takes on a part of the load, the strength of the blade root can be improved.
本実施例では、Ｍ合金（Ａ６０６１ ）をマ） ＩＪソ
ックスし、ＳｉＣウィスカを強化繊維としたＦＲＭにつ
いて、水中キャビテーションエロージョン試験を実施し
た。In this example, an underwater cavitation erosion test was conducted on an FRM made of M alloy (A6061) as an IJ sock and reinforced with SiC whiskers.
ＳｉＣウィスカのＦＲＭ中の体積含有量（Ｖ／）は１５
チで、ＦＲＭ製造は、溶湯鍛造法によった。The volume content (V/) of SiC whiskers in FRM is 15
In H, the FRM was manufactured using a molten metal forging method.
キャビテーションエロージョン試験は、磁歪式実施した
。第１表はこれらの試験条件で母材とＦＲＭＫついて、
キャビテーションエロージョン試験を行ない、試験前後
における重量変化の比較結果を示したものである。The cavitation erosion test was carried out using a magnetostrictive method. Table 1 shows the base material and FRMK under these test conditions.
A cavitation erosion test was conducted, and the comparison results of weight changes before and after the test are shown.
第 １ 表
第１表に示す試験後の供試材の重量減比較結果からも判
るように、ＦＲＭは母材と比較して重量減が著しく少な
いのが認められた。Table 1 As can be seen from the comparison results of the weight loss of the test materials after the test shown in Table 1, it was observed that the weight loss of FRM was significantly smaller than that of the base material.
また、上記試験条件での、母材とＦＲＭの試験前後のマ
クロ外観状況を第１図から第４図に、ミクロ外観状況を
第５図から第６図に示している。すなわち、第１図と第
２図は母材であるＭ合金Ａ６０６１のキャビテーション
エロージョン試験前後のマクロ外観状況を示している。Furthermore, under the above test conditions, the macroscopic appearance of the base material and FRM before and after the test is shown in FIGS. 1 to 4, and the microscopic appearance is shown in FIGS. 5 to 6. That is, FIGS. 1 and 2 show the macroscopic appearance of the base material M alloy A6061 before and after the cavitation erosion test.
また第３図と第４図はＦ ＲＭ （ＳｉＣウィスカ／Ａ
６０６１ ）のキャビテーションエロージョン試験前後
のマクロ外観状況を示している。Also, Figures 3 and 4 show F RM (SiC whisker/A
6061) shows the macroscopic appearance before and after the cavitation erosion test.
更に第５図と第６図はそれぞれＭ合金Ａ６０６１及びＦ
ＲＭ （ＳｉＣウィスカ／Ａ６０６１ ）について、
キャビテーションエロージョン試験後の各供試材のエロ
ージョン面のＳＥＭ（走査型電子顕微鏡）によるミクロ
外観状況を示している。Furthermore, Figures 5 and 6 show M alloys A6061 and F, respectively.
Regarding RM (SiC whisker/A6061),
The figure shows the microscopic appearance of the erosion surface of each sample material after the cavitation erosion test using an SEM (scanning electron microscope).
これらの図から判るように、ＦＲＭは、母材と比較して
損傷が著しく少なく、耐エロージヨン性が向上している
のが確認された。As can be seen from these figures, it was confirmed that FRM had significantly less damage and improved erosion resistance compared to the base material.
以上のことにより、金属材料をセラミックス繊維で強化
しＦＲＭ化することにより耐エロージヨン性が向上する
ことが認められた。From the above, it has been confirmed that erosion resistance is improved by reinforcing a metal material with ceramic fibers and making it FRM.
タービン翼材料あるいはステライトをマトリックスとし
、セラミックスウィスカまたは、セラミックス短繊維を
強化繊維とし繊維強化金属（ＦＲＭ）の薄板をタービン
翼の被覆材として用いることにより、耐食・耐エロージ
ヨン性が改善され、翼の寿命が向上する等本発明は産業
の発達に寄与するところが大きい。By using turbine blade material or stellite as a matrix, ceramic whiskers or ceramic short fibers as reinforcing fibers, and fiber reinforced metal (FRM) thin plates as coating materials for turbine blades, corrosion and erosion resistance are improved, and the blades are The present invention greatly contributes to the development of industry, such as by improving the lifespan.
第１図から第４図はキャビテーションエロージョン試験
前後のマクロ外観状況を示す比較図で、第１図と第２図
はＭ合金Ａ６０６１について、第３図から第４図はＦ
ＲＭ （ＳｉＣウィスカ／Ａ６０６１）について試験前
後の比較図である。第５図は第２図と、第６図は第４図
とにそれぞれ相当するキャビテーションエロージョン試
験後のＭ合金Ａ６０６１とＦ ＲＭ （ＳｉＣウィスカ
／Ａ６０６１ ）の各供試材のエロージョン面のＳＥＭ
（走査型電子顕微鏡）によるミクロ外観状況を示す比較
図である。
第 Ｓ図
１．明細書第７頁第４行目から第１３行目の［第事件の
表示
昭和 ６１年 特 許 願第 １３３３７
号発明の名称
タービン翼
補正をする者
事件との関係 特許出願人
住 所 東京都千代田区丸の１二丁目５番１号
名 称（６２０）三菱重工業株式会社
代 理 人
ら第４図はキャビテーションエロージョン試験前後の供
試材エロージョン面を比較して示す金属組織の写真で、
第１図と第２図はＡ１合金Ａ６０６１供試材について、
第３図と第４図はＦＲＭ（ｓｉｃウィスカ／Ａ６０６１
）供試材についてそれぞれ金属組織を示している。
第５図は第２図）こ、第６図は第５図にそれぞれ相当す
るキャビテーションエロージョン試験後のＡ６合金Ａ６
０６１供試材とＦＲＭ（ｓｉｃウィスカ／Ａ６０６１）
供試材のエロージョン面の金属組織を示すＳＥＭ（走査
型電子顕微鏡）写真で、いずれも１０倍の拡大写真であ
る。」と訂正する。
２、 図面全面（第１図から第６図）を、添付の第１図
から第６図と差し替える。Figures 1 to 4 are comparative diagrams showing the macroscopic appearance before and after the cavitation erosion test. Figures 1 and 2 are for M alloy A6061, and Figures 3 to 4 are for F alloy.
It is a comparison diagram of RM (SiC whisker/A6061) before and after the test. Figure 5 is a SEM of the erosion surface of M alloy A6061 and F RM (SiC whisker/A6061) specimens after the cavitation erosion test, which corresponds to Figure 2 and Figure 6 to Figure 4, respectively.
FIG. 2 is a comparative diagram showing the microscopic appearance under a scanning electron microscope (scanning electron microscope). Figure S 1. [Indication of the 1986 Patent Application No. 13337 from page 7, line 4 to line 13 of the specification]
Name of the No. Invention Relationship with the Case of Person Amending Turbine Blades Patent Applicant Address 12-5-1 Maruno, Chiyoda-ku, Tokyo Name (620) Representatives of Mitsubishi Heavy Industries, Ltd. Figure 4 shows cavitation A photo of the metal structure comparing the erosion surface of the specimen before and after the erosion test.
Figures 1 and 2 are for the A1 alloy A6061 test material.
Figures 3 and 4 are FRM (sic whisker/A6061
) The metallographic structure of each sample material is shown. Figure 5 shows the A6 alloy A6 after the cavitation erosion test, which corresponds to Figure 2), and Figure 6 corresponds to Figure 5.
061 test material and FRM (SIC whisker/A6061)
These are SEM (scanning electron microscope) photographs showing the metal structure of the eroded surface of the sample material, and all photographs are 10 times enlarged. ” he corrected. 2. The entire drawings (Figures 1 to 6) are replaced with the attached Figures 1 to 6.
Claims (1)
セラミックスウィスカまたはセラミックス短繊維を強化
繊維として成る繊維強化金属の薄板をタービン翼面の一
部又は全部に被着して成ることを特徴とするタービン翼
。A turbine blade characterized in that a thin plate of fiber-reinforced metal made of general turbine blade material or stellite as a matrix and ceramic whiskers or ceramic short fibers as reinforcing fibers is adhered to a part or all of the turbine blade surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1333786A JPS62170706A (en) | 1986-01-24 | 1986-01-24 | Turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1333786A JPS62170706A (en) | 1986-01-24 | 1986-01-24 | Turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62170706A true JPS62170706A (en) | 1987-07-27 |
Family
ID=11830312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1333786A Pending JPS62170706A (en) | 1986-01-24 | 1986-01-24 | Turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62170706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6436501U (en) * | 1987-08-29 | 1989-03-06 |
-
1986
- 1986-01-24 JP JP1333786A patent/JPS62170706A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6436501U (en) * | 1987-08-29 | 1989-03-06 |
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