JPS61569A - Power for thermal spraying - Google Patents

Power for thermal spraying

Info

Publication number
JPS61569A
JPS61569A JP11906784A JP11906784A JPS61569A JP S61569 A JPS61569 A JP S61569A JP 11906784 A JP11906784 A JP 11906784A JP 11906784 A JP11906784 A JP 11906784A JP S61569 A JPS61569 A JP S61569A
Authority
JP
Japan
Prior art keywords
powder
thermal spraying
wear
ferrochrome
stainless steel
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
Application number
JP11906784A
Other languages
Japanese (ja)
Inventor
Nobuhiko Kawamura
河村 伸彦
Isamu Asakawa
浅川 勇
Takashi Shoji
孝志 荘司
Yuichi Suenaga
裕一 末永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Denko KK filed Critical Showa Denko KK
Priority to JP11906784A priority Critical patent/JPS61569A/en
Publication of JPS61569A publication Critical patent/JPS61569A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process

Abstract

PURPOSE:To obtain a thermal spraying material for forming a sprayed film having superior resistance to heat, corrosion and wear at a low cost by mixing powders of ferrochrome, ferromolybdenum and stainless steel in a specified ratio. CONSTITUTION:The thermal spraying material for forming a sprayed film consisting of 20-60wt% Cr, 1.6-8wt% C, 5-36wt% Mo and the balance Fe and Ni and having superior resistance to heat, corrosion and wear, especially abrasive wear on the surface of a metallic material is obtd. by mixing 40-80wt% high- carbon ferrochrome of <=150mum size with 10-50wt% ferritic or austenitic stainless steel powder and 10-50wt% high-carbon ferromolybdenum powder. A sprayed film having said superior characteristics can be formed at a low cost by using the mixture.

Description

【発明の詳細な説明】 本発明は金属材料の表面に皮膜を形成するための溶射用
粉末材料に関し、特に耐摩耗性、耐アブレシブ摩純性、
耐食性にすぐれた皮膜を得るのに適した安価な溶射用粉
末に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a powder material for thermal spraying for forming a film on the surface of a metal material, and in particular has excellent abrasion resistance, abrasive abrasion resistance,
The present invention relates to an inexpensive thermal spray powder suitable for obtaining coatings with excellent corrosion resistance.

近年、内燃機関の小型軽量化と高出力化の要求が高まり
、内燃機関用部材に対して、より高度な耐摩耗性、耐焼
付性が要求されるに至っている。
In recent years, there has been an increasing demand for internal combustion engines to be smaller and lighter and to have higher output, and internal combustion engine components are now required to have higher wear resistance and seizure resistance.

従来、かかる要求に対しては部材表面にポーラスクロム
メッキを施こされ、高融点・高硬度を有し、かつ酎食性
に優れ、しかも潤滑油を適当に保持することから重用さ
れてきた。しかし最近の材料に対する要求のうち、耐摩
耗性、特に耐アブレシブ摩耗性に関して満足する特性が
得られていないのが実状である。
Conventionally, in order to meet such requirements, porous chromium plating has been applied to the surface of the member, which has been widely used because it has a high melting point, high hardness, is excellent in corrosion resistance, and retains lubricating oil appropriately. However, the current situation is that, among the recent requirements for materials, properties that satisfy the wear resistance, particularly abrasive wear resistance, have not been obtained.

そこでこれらの要求に答えるため、金属材料の表面に溶
射皮膜を形成し、耐摩耗性、酎食性、潤滑性を向上させ
る試みが多数提案されている。従来、溶射材としてはそ
の皮膜に要求される特性に応じ、各種の金属粉末、酸化
物粉末、あるいはこれらの複合粉末がある。これら溶射
材の中で機械部材に使用しうる硬さ、耐摩耗性、耐食性
を有し、かつ溶射面が良好な仕上げ面とすることが可能
なものとしてはモリブデン、コバルト、ニッケル等の金
属や、ニッケル、クロムを主体とした自溶性合金や各種
サーメット、あるいはクロミア、チタンカーバイド等の
セラミック材料がある。しかしながら、現在使用されて
いるセラミック溶射材では高硬度だが脆く、高荷重で衝
撃が加わる環境では著しく摩耗する欠点を有する。また
、各種金属材料のうち、モリブデンや自溶性合金は溶射
作業も容易ですぐれた性能を有しており、相対的摩耗に
おいてもかなりの好結果を得ている。しかしながら高温
における耐酸化性および耐摩耗性において、最近の内燃
機関に課せられた過酷な条件に絶えることができず、さ
らに優れた酎摩耗性、耐焼付性が求められている。
In order to meet these demands, many attempts have been made to form thermal spray coatings on the surfaces of metal materials to improve their wear resistance, corrosion resistance, and lubricity. Conventionally, thermal spray materials include various metal powders, oxide powders, and composite powders thereof, depending on the characteristics required for the coating. Among these thermal spraying materials, metals such as molybdenum, cobalt, and nickel have the hardness, wear resistance, and corrosion resistance that can be used for mechanical parts, and can provide a good thermal sprayed surface finish. There are self-fusing alloys mainly composed of nickel and chromium, various cermets, and ceramic materials such as chromia and titanium carbide. However, the ceramic sprayed materials currently in use have the disadvantage that although they have high hardness, they are brittle and wear out significantly in environments where high loads and impacts are applied. Further, among various metal materials, molybdenum and self-fusing alloys are easy to thermal spray and have excellent performance, and have obtained fairly good results in terms of relative wear. However, in terms of oxidation resistance and wear resistance at high temperatures, it cannot withstand the harsh conditions imposed on modern internal combustion engines, and even better wear resistance and seizure resistance are required.

本発明の目的は溶射皮膜が耐熱性、耐食性、耐摩耗性に
優れ、特に耐アブレシブ摩耗に優れた性能を発揮し、し
かも溶射作業が容易で皮膜面を平滑に仕りげることが可
能であり、かつ安価な溶射材料を提供することに有る。
The purpose of the present invention is to provide a thermal spray coating that has excellent heat resistance, corrosion resistance, and abrasion resistance, and in particular exhibits excellent performance in abrasive wear resistance, and that the thermal spraying process is easy and the coating surface can be finished smoothly. The object of the present invention is to provide a thermal spraying material that is also inexpensive.

本発明の溶射材は前記の性質を有するので機械部材、特
に内燃機のピストンやシリンダー等の摺動部分の表面を
被覆するのに好適である。
Since the thermal spray material of the present invention has the above-mentioned properties, it is suitable for coating the surfaces of mechanical parts, particularly sliding parts such as pistons and cylinders of internal combustion engines.

本発明のは耐摩耗性に寄与する硬質相成分として、高硬
度でかつ安価なフェロクロム中のクロム・鉄カーバイド
((Cr、Fe)7C3)を利用し、クロム・(鉄カー
バイドの持つ欠点である靭性不足を補うため、バインダ
ー相成分として低硬度ではあるが靭性に優れ、かつ耐食
性も良好なステンレス鋼と潤滑性にすぐれたフェロモリ
ブデンとを混合し、クロム・鉄カーバイドの靭性不足か
ら生ずるクラックの発生を防止し、耐摩耗性、耐食性に
優れた強靭な溶射皮膜を得られるようにしたものである
The present invention uses chromium/iron carbide ((Cr,Fe)7C3) in ferrochrome, which has high hardness and is inexpensive, as a hard phase component that contributes to wear resistance, and eliminates the disadvantages of chromium/(iron carbide). In order to compensate for the lack of toughness, we mixed stainless steel, which has low hardness but excellent toughness and good corrosion resistance, with ferromolybdenum, which has excellent lubricity, as a binder phase component. This prevents the occurrence of corrosion and makes it possible to obtain a tough thermal sprayed coating with excellent wear resistance and corrosion resistance.

たとえばこれまで用いられてきた高炭素フェロクロム(
Fern)とモリブデン(MO)からなる溶射材による
皮膜では、高硬度ではあるが靭性が不足しており、大荷
重下では酎摩耗性が劣っていた。また、低炭素フェロク
ロム(FC:rL)とFGrl(、NoとFCrLから
なる溶射材を用いた皮膜でも同様に靭性不足から酎摩耗
性に難点があった。すなわち、耐摩耗性を有する高硬度
相の靭性不足に起因する粒子の脱落を何らかのバインダ
ー相を使用して防止する必要がある。このような靭性不
足による耐摩耗粒子の脱落の傾向は、高硬度の材料はど
大きく、またこれは材料の本来の性質にも依存する。
For example, the high carbon ferrochrome that has been used so far (
Although the coating was made of a thermal spray material consisting of Molybdenum (Fern) and Molybdenum (MO), although it had high hardness, it lacked toughness and had poor abrasion resistance under heavy loads. Additionally, coatings using thermal sprayed materials consisting of low carbon ferrochrome (FC: rL), FGrl (No. It is necessary to use some kind of binder phase to prevent particles from falling off due to lack of toughness. It also depends on the original nature of.

たとえば、溶射皮膜としてのMOは硬度はHマ;400
〜600とあまり大きくはないが、MO本来の脆性のた
めに皮膜の脱落が起り、結果的に大荷重下での摩耗、あ
るいはアブレシブ摩耗は大きくなる。
For example, MO as a thermal spray coating has a hardness of Hma; 400
~600, which is not very large, but due to the inherent brittleness of MO, the film falls off, resulting in increased wear under heavy loads, or abrasive wear.

一方、これらの点を改良するために自溶性合金相をバイ
ンダー成分として使用する試みもある。
On the other hand, in order to improve these points, there are also attempts to use a self-fusing alloy phase as a binder component.

自溶性合金相は硬度はHマ=400〜600で合金自身
の靭性も良好であるが、融点が低く強度も大きいために
溶射皮膜の張力が大きく、粒子間結合力は弱い。したが
って摺動摩擦面の皮膜を観察すると、NoやFCrl(
では個々の皮膜の粒子内でクラックによる破壊が進行し
脱落していくが、自溶性合金ではこの破壊の単位が大き
く、大荷重下での脱落はより大きい。すなわち、大荷重
下での摺動摩擦下では著しく摩耗することになる。
The self-fusing alloy phase has a hardness of Hma = 400 to 600, and the alloy itself has good toughness, but since the melting point is low and the strength is high, the tension of the sprayed coating is large and the bonding force between particles is weak. Therefore, when observing the film on the sliding friction surface, it is found that No.
In the case of a self-fusing alloy, the fracture due to cracks progresses within the grains of the individual film and the film falls off, but in the case of self-fusing alloys, the units of this breakage are large, and the falling off is even larger under heavy loads. In other words, significant wear occurs under sliding friction under heavy loads.

本発明では上記の欠点を解消するため、バインダー相と
して硬度がHマ= 200〜400と比較的低いが靭性
に優れ、かつ皮膜内の張力が比較的小さいステンレス銅
相を用いるとともに、硬度はHマ=500〜700程度
であるが、潤滑性に寄与するフェロモリブデンを用いる
ことにより、大荷重下での耐摩耗性を向上させることに
ある。
In order to eliminate the above-mentioned drawbacks, the present invention uses a stainless copper phase as a binder phase, which has a relatively low hardness of 200 to 400 but has excellent toughness and has a relatively small tension within the film. By using ferromolybdenum, which contributes to lubricity, the purpose is to improve wear resistance under heavy loads.

さらにステンレス鋼はそれ自身、耐酸化性、耐熱性、耐
食性にも優れ、溶射性も良好である。
Furthermore, stainless steel itself has excellent oxidation resistance, heat resistance, corrosion resistance, and thermal sprayability.

本発明の溶射材はフェロクロム粉末40〜80重量%と
ステンレス鋼粉末10〜50重量%、フェロモリブデン
粉末10〜50重量%とを混合して得られるものであり
、その組成はクロム20〜60重量%、炭素り、8〜8
重量%、モリブデン5〜36重量%を含み、残部が鉄ま
たは鉄とニッケルおよび付随的不純物となるように定め
られる。この場合、炭素はクロムと鉄との炭化物として
含まれることが必要であり、クロムまたはニッケルは鉄
との合金をなしていることが必要である。
The thermal spraying material of the present invention is obtained by mixing 40 to 80% by weight of ferrochrome powder, 10 to 50% by weight of stainless steel powder, and 10 to 50% by weight of ferromolybdenum powder, and its composition is 20 to 60% by weight of chromium. %, carbon content, 8-8
% by weight, from 5 to 36% by weight of molybdenum, with the remainder being iron or iron and nickel and incidental impurities. In this case, carbon must be included as a carbide of chromium and iron, and chromium or nickel must be alloyed with iron.

各成分の限定理由は次のとおりである。The reasons for limiting each component are as follows.

炭素はクロム−鉄とカーバイドを形成して耐摩耗性に寄
与することから、炭素が1.6重量%以下ではカーバイ
ドが不足し、硬度が低くて耐アブレシブ摩耗性が劣り、
炭素が8重量%以上では、カーバイドが多すぎて皮膜が
脆化する結果となる。
Carbon forms carbide with chromium-iron and contributes to wear resistance, so if carbon is less than 1.6% by weight, carbide is insufficient, resulting in low hardness and poor abrasive wear resistance.
If the carbon content is 8% by weight or more, there will be too much carbide and the film will become brittle.

クロムはクロム拳鉄カーバイドとして存在する他に鉄と
の合金をなして靭性改善に寄与することから、総量とし
ては20〜60重量%含ませる必要がある。クロムが2
0重量%以下では硬度が不足し耐うッピング摩耗特性ガ
低下し、60重量%以上ではかえって脆くなる。
Since chromium exists as chromite carbide and also forms an alloy with iron and contributes to improving toughness, it is necessary to contain the total amount in an amount of 20 to 60% by weight. chrome is 2
If it is less than 0% by weight, the hardness will be insufficient and the wear resistance will be lowered, and if it is more than 60% by weight, it will become brittle.

モリブデンは摺動面の潤滑性を高め酎摩耗性を向上させ
る効果を有する。モリブデンは硬いカーバイドの形で存
在すれば酎摩耗性に効果を発揮し、鉄に固溶した形で存
在すれば潤滑性に寄与する。いずれの形態にせよ、モリ
ブデン総量で5〜36重量%含ませると効果が認められ
る。モリブデン含有量が38%以上になると皮膜の靭性
が低下し、耐アブレシブ摩耗性に劣るものとなる。
Molybdenum has the effect of increasing the lubricity of sliding surfaces and improving wear resistance. If molybdenum exists in the form of a hard carbide, it is effective in reducing wear resistance, and if it exists in the form of a solid solution in iron, it contributes to lubricity. Regardless of the form, the effect is recognized when the total amount of molybdenum is 5 to 36% by weight. When the molybdenum content exceeds 38%, the toughness of the film decreases, resulting in poor abrasive wear resistance.

溶射材の残部は鉄または鉄とニッケルおよび付随的不純
物からなり、鉄または鉄とニッケルは主としてクロムと
の合金をなしている。
The remainder of the spray material consists of iron or iron and nickel and incidental impurities, with the iron or iron and nickel being primarily alloyed with chromium.

旧は靭性を増して耐アブレシブ摩耗特性を向上させる効
果を有するので適量を含んでいても良い、Niの適量は
5〜13重量%であり、あまり多量4      に添
加するとかえって耐摩耗性が劣化する。
The former has the effect of increasing toughness and improving abrasive wear resistance, so it may be included in an appropriate amount.The appropriate amount of Ni is 5 to 13% by weight, and adding too much Ni will actually deteriorate the wear resistance. .

その他の成分はステンレス鋼中への添加元素として含ま
れる程度のものが含まれていても1本発明の効果を得る
上で特に支障はない。
Even if the other components are included as elements added to stainless steel, there is no particular problem in obtaining the effects of the present invention.

本発明において使用するフェロクロム粉末は、クロム・
鉄カーバイドを利用するから市販の高炭素フェロクロム
を使用するのが必須である。その他には本発明の要件を
満たす範囲で中炭素フェロクロムあるいは低炭素フェロ
クロムを用いてもさしつかえない。これらのフェロクロ
ム粉末はインゴットを機械的に粉砕するか、あるいは溶
湯に気体−を吹きつける等の方法で得られる。フェロク
ロム粉末粒子の大きさは150gm以下、好ましくは1
0〜?4pmに整粒したものが好ましい。
The ferrochrome powder used in the present invention is chromium.
Since iron carbide is used, it is essential to use commercially available high carbon ferrochrome. In addition, medium carbon ferrochrome or low carbon ferrochrome may be used as long as the requirements of the present invention are met. These ferrochrome powders can be obtained by mechanically crushing an ingot or by blowing gas onto a molten metal. The size of the ferrochrome powder particles is 150 gm or less, preferably 1
0~? It is preferable that the particles be sized to 4 pm.

また本発明において使用するステンレス鋼粉末はSO8
430に代表されるフェライト系ステンレス鋼や、SU
S 304に代表されるオーステナイト系ステンレス鋼
さらにはSOS 31Bに代表されるMO入りのステン
レス鋼でも使用可能である。ステンレス鋼粉末は一般に
7トマイズ法によって製造され、好ましい粉末の粒子の
大きさはフェロクロム粉末と同様150ルm以下で、特
に10〜74pmに整粒したものが良い。
Furthermore, the stainless steel powder used in the present invention is SO8
Ferritic stainless steel represented by 430, SU
It is also possible to use austenitic stainless steel, such as S 304, and even MO-containing stainless steel, such as SOS 31B. Stainless steel powder is generally produced by the 7tomizing method, and the preferred particle size of the powder is 150 lumen or less, like ferrochrome powder, and preferably sized to 10 to 74 pm.

フェロモリブデンは市販の高炭素フェロモリブデン(N
o:55〜f(5%、c : e、o%以下)か低炭素
フェロモリブデン(No:80〜70%、C: 0.1
0%以下)を使用すれば良いが、経済的には高炭素フェ
ロモリブデンが有利である。高炭素フェロモリブデンは
粉砕が容易であり、高炭素フェロクロムと同様の粒度に
粉砕して使用する。
Ferromolybdenum is commercially available high carbon ferromolybdenum (N
o: 55-f (5%, c: e, o% or less) or low carbon ferromolybdenum (No: 80-70%, C: 0.1
(0% or less) may be used, but high carbon ferromolybdenum is economically advantageous. High carbon ferromolybdenum is easy to crush and is used after being crushed to the same particle size as high carbon ferrochrome.

以上の粉末を所定の割合に配合し、均一に混合して溶射
用粉末とする。
The above powders are blended in a predetermined ratio and mixed uniformly to form a powder for thermal spraying.

本発明は経済性の点から単に混合したままで使用するが
、適当なバインダーを使用して複合粉末として使用して
も何らさしつかえない。その場合も粒子径は15071
m以下、好ましくは10〜?44mに整粒すると溶射作
業性が良くなることは言うまでもない。
In the present invention, from the point of view of economy, the mixture is used as it is, but there is no problem in using it as a composite powder using a suitable binder. In that case, the particle size is 15071
m or less, preferably 10~? Needless to say, spraying workability improves when the particles are sized to 44 m.

次に実施例をあげて本発明を説明する。Next, the present invention will be explained with reference to Examples.

実施例 表1に示すようなフェロクロム粉末とステンレス銅粉末
とフェロモリブデン粉末とを表2に示す割合で均一混合
して溶射材とした。
EXAMPLES Ferrochrome powder, stainless steel copper powder, and ferromolybdenum powder as shown in Table 1 were uniformly mixed in the proportions shown in Table 2 to prepare a thermal spraying material.

(以下余白) 次に上記溶射材を使用して溶射皮膜を作り、硬度測定(
Hv)、プラストエロージせンテス) (B、E。
(Left below) Next, a thermal spray coating was made using the above thermal spray material, and the hardness was measured (
Hv), Plasterogecentes) (B, E.

Te5t) 、 ラップテスト(LP Te5t) 、
大球式摩耗テスト(Ws)を実施した。各テストの条件
は次のとおりであった。
Te5t), Lap Test (LP Te5t),
A large ball wear test (Ws) was conducted. The conditions for each test were as follows.

】、溶射材料 溶射装置;プラズマダイン社製溶射装置5G−100条
   件;Ar=40文/min 、He= 15文/
ff1in。
], Thermal spraying material thermal spraying equipment; Thermal spraying equipment 5G-100 manufactured by Plasma Dyne. Conditions: Ar = 40 sentences/min, He = 15 sentences/min.
ff1in.

powder gas(Ar)= 7.51/min。powder gas (Ar) = 7.51/min.

powder量= 50g/min。Powder amount = 50g/min.

入力= 80OA、 35V。Input = 80OA, 35V.

溶射距離= 100mmで溶射 2、試験条件 (1)断面硬度測定(Hv(0,5))通常の鋼材上に
0.3m−溶射し、切断後研磨し、島津製作所製マイク
ロビッカーズ硬度計にて荷重500gで測定 (2)ブラストxo−ジョン試験(B、E、Te5t)
■サンプルサイズ 50X80X3  鋼材上に0.3m−溶射■試験条件 ブラスト装置;不二製作所製FDK−2型ノズル内径=
 9mm、距離= 100mm。
Spraying distance = 100mm, thermal spraying 2, test conditions (1) Cross-sectional hardness measurement (Hv (0,5)) 0.3m-spraying on normal steel material, cutting and polishing, using a Shimadzu Micro Vickers hardness meter. Measured with a load of 500g (2) Blast xo-john test (B, E, Te5t)
■Sample size 50X80X3 0.3m-sprayed onto steel ■Test conditions Blast equipment; Fuji Seisakusho FDK-2 type nozzle inner diameter =
9mm, distance = 100mm.

ブラスト圧力= 4.0kg/ c m” 。Blasting pressure = 4.0 kg/cm”.

ブラスト材;昭和電工型A−40゜ 粒度=−32メツシュ+60メツシュ。Blasting material: Showa Denko type A-40° Particle size = -32 mesh + 60 mesh.

試験片ノズル角=30’。Specimen nozzle angle = 30'.

ブラスト時間= 1Osec (3)ラップテスト(LP Te5t)■サンプルサイ
ズ 外径 110mmX内径100mmX 5mmtリング
面にOJmm’溶射 ■試験条件 ラップ装置;ツートン製ラップマスタ−12荷重=  
5kg、試験時間= 20m1n。
Blasting time = 1Osec (3) Lap test (LP Te5t) ■Sample size: outer diameter 110mm x inner diameter 100mm x 5mmt OJmm' thermal spraying on ring surface ■Test conditions Wrap device: Two-tone Wrap Master - 12 Load =
5kg, test time = 20m1n.

研磨材;昭和電工型A−f100#、 20 g/文。Abrasive material: Showa Denko type A-f100#, 20 g/piece.

研磨材使用量; lug/10m1n使用(4)大球式
摩耗試験(比摩耗量Ws mm2 /kg )■サンプ
ルサイズ 30m+wX 60mmX 5mmt  鋼材面上ニ0
.5mm溶射溶射後、平面研削盤にて表面研削後、 エメリー紙にてteooまで研磨 ■試験条件 相手材、 5UJ−2焼入れ鋼 直径30mmX 2mm  円板 摩擦速度= O,?8m/ s 、摩擦距離=BOO+
s。
Amount of abrasive used; Lug/10m1n used (4) Large ball wear test (Specific wear Ws mm2/kg) ■Sample size 30m+wX 60mmX 5mmt Ni 0 on steel surface
.. After 5mm thermal spraying, surface grinding with a surface grinder, and polishing with emery paper until teoo ■Test conditions Comparing material, 5UJ-2 hardened steel diameter 30mm x 2mm Disc friction speed = O,? 8m/s, friction distance=BOO+
s.

荷重=  8.3kg、潤滑油=タービン油#32(試
験前に試験片表面に塗布) 以上の測定結果を表2に併記する。
Load = 8.3 kg, lubricating oil = turbine oil #32 (applied to the surface of the test piece before the test) The above measurement results are also listed in Table 2.

(以下余白) 結果から明らかなとおり1本発明による溶射材を使用し
た溶射皮膜はフェロクロム単独やステンレス鋼単独の溶
射皮膜に比較して優れた耐摩耗性を備えていることがわ
かる。これは単に組成を一致させるだけでなく、クロム
Φ鉄カーバイドとステンレス鋼の有する効果を兼ね備え
た結果書られる特有の効果である。
(The following is a blank space) As is clear from the results, the thermal sprayed coating using the thermal spraying material according to the present invention has superior wear resistance compared to the thermal sprayed coating made of ferrochrome alone or stainless steel alone. This is a unique effect resulting from not only matching the composition but also combining the effects of chromium Φ iron carbide and stainless steel.

Claims (1)

【特許請求の範囲】[Claims] クロム20〜60重量%、炭素1.6〜8重量%、モリ
ブデン5〜36%を含み、残部が鉄または鉄とニッケル
および付随的不純物より成る組成を有するごとくフェロ
クロム粉末とステンレス鋼粉末とフェロモリブデン粉末
を混合してなることを特徴とする溶射用粉末。
Ferrochrome powder, stainless steel powder, and ferromolybdenum having a composition containing 20 to 60% by weight of chromium, 1.6 to 8% by weight of carbon, 5 to 36% of molybdenum, and the balance consisting of iron or iron and nickel and incidental impurities. A thermal spray powder characterized by being made by mixing powders.
JP11906784A 1984-06-12 1984-06-12 Power for thermal spraying Pending JPS61569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11906784A JPS61569A (en) 1984-06-12 1984-06-12 Power for thermal spraying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11906784A JPS61569A (en) 1984-06-12 1984-06-12 Power for thermal spraying

Publications (1)

Publication Number Publication Date
JPS61569A true JPS61569A (en) 1986-01-06

Family

ID=14752072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11906784A Pending JPS61569A (en) 1984-06-12 1984-06-12 Power for thermal spraying

Country Status (1)

Country Link
JP (1) JPS61569A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5292382A (en) * 1991-09-05 1994-03-08 Sulzer Plasma Technik Molybdenum-iron thermal sprayable alloy powders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5292382A (en) * 1991-09-05 1994-03-08 Sulzer Plasma Technik Molybdenum-iron thermal sprayable alloy powders

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