JPH01156457A - Surface hardening method for titanium product - Google Patents
Surface hardening method for titanium productInfo
- Publication number
- JPH01156457A JPH01156457A JP31479187A JP31479187A JPH01156457A JP H01156457 A JPH01156457 A JP H01156457A JP 31479187 A JP31479187 A JP 31479187A JP 31479187 A JP31479187 A JP 31479187A JP H01156457 A JPH01156457 A JP H01156457A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- titanium
- molten pool
- oxygen content
- high oxygen
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims description 37
- 239000010936 titanium Substances 0.000 title claims description 31
- 229910052719 titanium Inorganic materials 0.000 title claims description 31
- 239000001301 oxygen Substances 0.000 claims abstract description 36
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000002344 surface layer Substances 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract description 6
- 239000006104 solid solution Substances 0.000 abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 150000004767 nitrides Chemical class 0.000 abstract description 4
- 238000010894 electron beam technology Methods 0.000 abstract description 3
- 150000001247 metal acetylides Chemical class 0.000 abstract description 3
- -1 W2C and TiN Chemical class 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- OBSIQMZKFXFYLV-MRVPVSSYSA-N (2r)-2-amino-3-phenylpropanamide Chemical compound NC(=O)[C@H](N)CC1=CC=CC=C1 OBSIQMZKFXFYLV-MRVPVSSYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 229910001069 Ti alloy Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はチタン製品の耐摩耗性を向上させるため、表面
層にＷＪ、索及び酸素と硬質化を添加する方法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of adding WJ, rope, oxygen and hardening to the surface layer of titanium products in order to improve their wear resistance.
一般にチタン製品は耐摩耗性に欠けることから、機械部
品等の摺動部として使用することが困難であった。この
欠点を解決するため、チタン製品の表面に例えばＴ ｉ
Ｏｘ等の金！４Ｍ化物、金属炭化物、金属窒化物、ま
たは酸素等の硬質化物質を伸行させて該付着部に高エネ
ルギービームを照射し、表層部において硬質化物質とチ
タン製品とを融合−体化させる方法（特開昭６ｌ−２３
１１５１）や、チタン製品の表面層を高エネルギー照射
で溶解し、溶融池中に例えばＴｉＣ等の分散強化させる
硬質材の粉末や、固溶強化させる酸素ガス等を噴射混入
させる方法（特開昭６２−５６５＋３１）が提案されて
いる。Generally, titanium products lack wear resistance, so it has been difficult to use them as sliding parts for mechanical parts. In order to solve this drawback, for example, Ti
Gold such as Ox! A method of extending a hardening substance such as 4M compound, metal carbide, metal nitride, or oxygen and irradiating the attached part with a high-energy beam to fuse the hardening substance and titanium product in the surface layer ( Japanese Patent Publication Showa 6l-23
1151), or a method in which the surface layer of a titanium product is melted by high-energy irradiation, and powder of a hard material such as TiC for dispersion strengthening or oxygen gas for solid solution strengthening is injected into the molten pool (JP-A-Sho). 62-565+31) has been proposed.
特開昭６１−２３１１５１の方法による金屑酸化物を付
着させる方法では、金属酸化物から酸素を分離して母材
のチタン中に多量の酸素を固溶させることや固溶酸素量
の制御が困難であり、また酸素の単体を付着させる具体
的な方法の開示がなく、一方特開昭６２−５６５６１の
方法では、酸素ガスを噴射させるから溶融池の極く表面
層が硬化されるだけであって、表面硬化されたチタン製
品を機械部品として使用するために硬化後の表面を機械
仕上げする場合は、硬化層が削除されてしまうことがあ
った。In the method of depositing gold scrap oxide according to the method of JP-A-61-231151, it is possible to separate oxygen from the metal oxide and dissolve a large amount of oxygen in the base material titanium, and to control the amount of solid dissolved oxygen. It is difficult to do so, and there is no disclosure of a specific method for adhering oxygen alone.On the other hand, in the method of JP-A-62-56561, since oxygen gas is injected, only the very surface layer of the molten pool is hardened. However, when the surface of a surface-hardened titanium product is machined to be used as a mechanical part, the hardened layer may be removed.
そこで本発明の目的は、チタン製品の摺動部に多量の酸
素を添加して固溶させ、比較的深い硬化層を形成させる
ことによる、耐摩耗性を改善する方法と、その効果を一
層高める方法を提供することである。Therefore, the purpose of the present invention is to provide a method of improving wear resistance by adding a large amount of oxygen to the sliding parts of titanium products to form a solid solution and forming a relatively deep hardened layer, and to further enhance the effect. The purpose is to provide a method.
〔間に点を解決するための手段〕
多量の酸素を固溶含有するチタンを溶解してこれを粉末
化し、この粉末を噴射混入すれば硬化予定部分に多量の
酸素を固溶させ、硬度を増大させて耐摩耗性が改善でき
ることを見出し、本発明を完成した。その要旨は、
（１） チタン製品の表面層を高エネルギー源からの
エネルギー照射で溶解し、この溶融池の中に酸素を添加
して硬化する方法において、予め高酸素を含有するチタ
ン粉末を、噴射混入することを特徴とするチタン製品の
表面硬化方法と、（２） チタン製品の表面層を高エネ
ルギー源からのエネルギー照射で溶解し、この溶融池の
中に酸素を添加して硬化する方法において、予め高酸素
を含有するチタン粉末と、硬質材粉末を混合して、噴射
混入することを特徴とするチタン製品の表面硬化方法と
、
（３） チタン製品の表面層を高エネルギー源からの
エネルギー照射で溶解し、この溶融池の中に酸素を添加
して硬化する方法において、予め高酸素を含有するチタ
ン粉末を噴射混合し、次いで硬質材粉末を噴射混入する
ことを特徴とするチタン製品の表面硬化方法、である。[Means for resolving the points in between] Titanium containing a large amount of oxygen in solid solution is dissolved and powdered, and this powder is injected into the area to be hardened, thereby causing a large amount of oxygen to be dissolved in solid solution, increasing the hardness. The present invention was completed based on the discovery that wear resistance can be improved by increasing the wear resistance. The gist is as follows: (1) A method in which the surface layer of a titanium product is melted by energy irradiation from a high-energy source and then hardened by adding oxygen to the molten pool. A method for hardening the surface of a titanium product, which is characterized by injection mixing; and (2) a method for melting the surface layer of a titanium product with energy irradiation from a high-energy source and hardening it by adding oxygen to the molten pool. (3) A surface hardening method for titanium products characterized by mixing titanium powder containing high oxygen content and hard material powder in advance and then spraying the mixture; A titanium product that is melted by energy irradiation and hardened by adding oxygen into the molten pool, which is characterized in that titanium powder containing high oxygen is mixed in advance by injection, and then hard material powder is mixed in by injection. This is a surface hardening method.
ここでチタン製品とは工業用純チタン及びチタン合金製
品をいい、チタン合金とはＴｉ−５Ａ４−２．５Ｓｎ
等のα型チタン合金、Ｔｉ−６／’ｊ２−４Ｖ等のα＋
β型チタ／合金、Ｔｉ−１５Ｖ−３Ａｕ−３Ｓｎ−３Ｃ
ｒ等のβ型チタン合金等の高強度のチタン合金をいう。Here, titanium products refer to industrially pure titanium and titanium alloy products, and titanium alloy refers to Ti-5A4-2.5Sn.
α type titanium alloy such as, α+ such as Ti-6/'j2-4V etc.
β type titanium/alloy, Ti-15V-3Au-3Sn-3C
Refers to high-strength titanium alloys such as β-type titanium alloys such as r.
また高エネルギー源からのエネルギー照ｑ（とけ、ＰＴ
Ａ）−チによる加熱、ＴＩＧ溶接用トーチによる加熱、
プラズマ溶接用トーチによる加熱、レーザービーム照射
、電子ビーム照射をいう。Also, energy irradiation (melting, PT) from high energy sources
A) - Heating with a torch, heating with a TIG welding torch,
Refers to heating with a plasma welding torch, laser beam irradiation, and electron beam irradiation.
高酸素を含有するチタン粉末とは、純チタン粉末及び前
記のチタン合金粉末で、酸素量のみを特別に多量に含有
させた粉末をいう。酸素量としては０．２〜３．０重量
％が望しい。硬質材粉末は、Ｗ２Ｃ。The titanium powder containing high oxygen refers to pure titanium powder and the titanium alloy powder described above, which contain only a particularly large amount of oxygen. The amount of oxygen is preferably 0.2 to 3.0% by weight. Hard material powder is W2C.
ＴｉＮ等の金属炭化物、金属窒化物であって、周知の硬
化材をいう。It refers to metal carbides and metal nitrides such as TiN, and is a well-known hardening material.
高エネルギー源からのエネルギー照射を行なうのは、加
熱範囲が限定しやす（、局部的に高温にすることが出来
るためである。The reason why energy irradiation is performed from a high-energy source is that the heating range can be easily limited (it is possible to locally raise the temperature to a high temperature).
なお深い硬化層を得るためには、ＰＴＡ）−チによる加
熱、ＴＩＧ溶接用トーチによる加熱、プラズマ溶接用ト
ーチによる加熱方法を用いるのが有効であり、浅い硬化
層を得るためには、レーザービーム照射、電子ビーム照
射を用いるのが有効である。In order to obtain a deep hardened layer, it is effective to use heating with PTA), heating with a TIG welding torch, heating with a plasma welding torch, and to obtain a shallow hardened layer, heating with a laser beam is effective. It is effective to use irradiation or electron beam irradiation.
酸素を用いるのは、少量で高い硬質が得られるためであ
る。また、酸素は通常の不純物であって、スクラップは
異材の混入したものとならないためである。The reason why oxygen is used is that high hardness can be obtained with a small amount. In addition, oxygen is a normal impurity, and the scrap is not contaminated with foreign materials.
硬質材粉末を用いるのは、酸素で硬化された高酸素マト
リックス中に分散させて、より耐摩耗性を改善するため
であり、マトリックスが硬化されているため硬質材粉末
の保持効果がよく、複合効果として、より耐摩耗性を向
上させる。The purpose of using hard material powder is to improve wear resistance by dispersing it in a high-oxygen matrix that is hardened with oxygen.Since the matrix is hardened, the hard material powder has a good retention effect, and the composite The effect is to further improve wear resistance.
予め高酸素を含有するチタン粉末を用いるのは、粉末の
母材がチタンであるから、粉末と母材との融合が容易で
あり、また母材と粉末の比重がほぼ同一であるから溶融
池の中で均一に混ざり易く、硬度の均一性が得られるた
めである。なお含有酸素量は、粉末用素材の溶解時に所
定量を添加すればよく、その技術は公知のチタン溶解方
法に依ることが出来る。The reason why we use titanium powder that contains high oxygen in advance is that the base material of the powder is titanium, so it is easy to fuse the powder with the base material, and the specific gravity of the base material and powder is almost the same, so there is no molten pool. This is because it is easy to mix uniformly in the liquid, and uniform hardness can be obtained. The amount of oxygen contained may be determined by adding a predetermined amount at the time of melting the powder material, and the technique can be based on a known titanium melting method.
噴射混入するのは、粉末輸送となるため、装置の機械化
、自動化が技術的に容易であるためである。The reason for mixing by injection is that it is technically easy to mechanize and automate the equipment because it involves transporting powder.
チタン粉末と硬質材粉末を混合して噴射するのは、深い
溶融池を作り、深い硬化層を得るときに作動であり、均
一の深い硬化層が得られる。The mixing and spraying of titanium powder and hard material powder is used to create a deep molten pool and obtain a deep hardened layer, resulting in a uniform deep hardened layer.
チタン粉末を先に噴射し、次いで硬化粉末を噴射するの
は、浅い硬化層を得るのに作動であり、まずマトリック
スを硬化し、次いで表面層に硬化材粉末を分散させるか
ら表面層のみを、特に硬化させる効果がある。Spraying the titanium powder first and then the hardening powder works to obtain a shallow hardened layer, first hardening the matrix and then dispersing the hardening agent powder in the surface layer, so that only the surface layer is It has a particularly hardening effect.
以下余白
〔実施例１〕
表 １
母材として、純Ｔｉ及びＴｉ −６Ａ、ｅ−４Ｖのφ１
００×４０１を用い、表１の条件下で、０．５〜１重量
％酸素含仔量を持つ純ＴｉまたはＴｉ合金粉（Ｔｉ−６
／１ｉ−４ＶＬ並びに前記粉末に金属炭化物粉末（Ｗ２
Ｃ）、金属窒化物粉末（Ｔ ｉ Ｎ）をｉｕ又は２種を
混合し円板上に、プラズマトーチ（１）（第１図）及び
ＰＴＡを用いて、溶融硬化処理を行なった。試験片の硬
化深さは約１５龍である。Blank space below [Example 1] Table 1 φ1 of pure Ti, Ti-6A, and e-4V as base materials
Pure Ti or Ti alloy powder (Ti-6
/1i-4VL and metal carbide powder (W2
C) IU of metal nitride powder (T i N) or a mixture of the two was melted and hardened on a disk using a plasma torch (1) (FIG. 1) and PTA. The cure depth of the specimen is approximately 15 mm.
しかるのちに、φ１０Ｘ４０ｆ！、の摩耗試験用試験片
（４）を切り出し表面をα５龍研磨後それらを摩耗試験
に供した。比較のために同じ純Ｔｉ、 Ｔｉ −６Ａ４
−４Ｖより、溶融硬化処理しないで、摩耗試験用試験片
を切り出し、摩耗試験に供した。After that, φ10X40f! A wear test specimen (4) was cut out and the surface was polished with α5 dragon, and then subjected to the wear test. For comparison, the same pure Ti, Ti-6A4
-4V, a wear test specimen was cut out without melt hardening treatment and subjected to the wear test.
従来例（１）として、プラズマトーチを用い酸素ガスを
溶融池に吹きこみ、硬化処理を行なった。As a conventional example (1), hardening treatment was performed by blowing oxygen gas into the molten pool using a plasma torch.
従来例（２）として溶融池にＷ２Ｃを単独に混入した。As a conventional example (2), W2C was mixed alone into the molten pool.
摩耗試験は第２図に示すようなピンオンディスク方式で
あり、荷重（８） ： ２ ｋｇ 、摺動速度（７）：
８２．８ｍ／ｍ１ｎ１摺動距離： ２．５Ｘ １０
’ ｍ ｓ相手材１６０キロ高張力鋼潤滑なしで摩耗試
験を行ない、重量減少量で耐摩耗性を評価した。結果を
表２に示す。The wear test was conducted using the pin-on-disk method shown in Figure 2, with load (8): 2 kg and sliding speed (7):
82.8m/m1n1 sliding distance: 2.5X 10
A wear test was conducted using 160 kg of high-strength steel as a counterpart material without lubrication, and the wear resistance was evaluated based on the amount of weight loss. The results are shown in Table 2.
酸素量を富化したＴｉ−６ＡＩｌ−４Ｖ粉を用いて、硬
化肉盛した部分の耐摩耗性は、肉盛しないものより良好
な耐摩耗性を存している。硬化物質を混入させた場合は
さらに良好な耐摩耗性を存している。The wear resistance of the hard-clad portion using Ti-6AIl-4V powder enriched with oxygen is better than that of the hard-clad part than that of the hard-clad part. When a hardening substance is mixed in, the wear resistance is even better.
尚、酸素ガスを溶融池（２）にふきこんだ肉感部は表面
硬度と内部硬度がバラツキ又、表面部に気泡、ワレがみ
られ、肉盛部品質は悪かった。又、Ｗ２Ｃ混入硬化部（
従来例（２））の耐摩耗性は対応するＴｉ−６１！−４
Ｖ＋Ｗ２Ｃ混合粉を用いて溶融硬化処理したものより悪
かった。In addition, the surface hardness and internal hardness of the fleshy part where oxygen gas was blown into the molten pool (2) varied, bubbles and cracks were observed on the surface part, and the build-up part quality was poor. In addition, W2C mixed hardening part (
The wear resistance of conventional example (2)) is that of the corresponding Ti-61! -4
It was worse than that obtained by melt hardening using V+W2C mixed powder.
尚、使用した純Ｔｉ、 Ｔｉ −６Ａ４−４Ｖ円板の表
面硬度は各々Ｈｖ１８０．３２０であった。The surface hardness of the pure Ti and Ti-6A4-4V disks used was Hv180.320.
以下余白
〔実施例２〕
Ｔｉ−６Ａｉ−４Ｖ ｆ）φ１００Ｘ４０Ｊ２円板に、
出力Ｉ ＫＷ。Below is the margin [Example 2] Ti-6Ai-4V f) φ100X40J2 disk,
Output I KW.
移動速１１１ｔ １ｍ／Ｗｉｎの条件で、アルボ／ガス
でシールしながら、円板表面部を溶解し、’ｒ＋ Ｅ３
ＡＩ１４Ｖ−０，５％０２粉末を２ＣＣ／ｍｉｎの流量
で吹きつけ、ついでＷ２Ｃ粉末を噴射混合して、表面部
にＷ２Ｃｍが多い表面硬化部を形成させた。硬化部の表
面からの断面硬度分布を第３図に示す。これより、φｌ
０Ｘ４（Ｈ２摩耗試験用試験片を切り出し、実施例１と
同じ摩耗試験を行ない、結果を表３に示す。表面硬化層
は薄いが良好な耐摩耗性を示した。Under the conditions of moving speed 111t 1m/Win, melt the disk surface part while sealing with albo/gas, 'r+E3
AI14V-0.5%02 powder was sprayed at a flow rate of 2 CC/min, and then W2C powder was sprayed and mixed to form a hardened surface portion containing a large amount of W2Cm on the surface. FIG. 3 shows the cross-sectional hardness distribution from the surface of the hardened part. From this, φl
A test piece for the 0X4 (H2 abrasion test) was cut out and subjected to the same abrasion test as in Example 1, and the results are shown in Table 3. Although the surface hardening layer was thin, it showed good abrasion resistance.
以上に説明したごとく、本発明はチタン製品の表面を局
部的に硬化して耐摩耗性を向上させることができるから
、摺動部を有する機械部品等にチタンを使用することが
でき、産業に寄与する効果が大きい。As explained above, since the present invention can locally harden the surface of titanium products to improve wear resistance, titanium can be used for mechanical parts with sliding parts, etc., and can be used in industry. The contribution effect is large.
第１図はプラズマトーチを使用した本発明法の一実施例
であり、第２図はピンオンディスク試験法の模式図、第
３図は実施例２の硬化物の断面硬度分布図である。
図中、
１・・・プラズマトーチ ２・・・溶融池３・・・ノズ
ル ４・・・摩耗試験用試験片５・・・硬化部
６・・・ディスク７・・・摺動速度FIG. 1 shows an example of the method of the present invention using a plasma torch, FIG. 2 is a schematic diagram of the pin-on-disk test method, and FIG. 3 is a cross-sectional hardness distribution diagram of the cured product of Example 2. In the figure, 1... Plasma torch 2... Molten pool 3... Nozzle 4... Test piece for wear test 5... Hardened part 6... Disk 7... Sliding speed
Claims (3)
ルギー照射で溶解し、この溶融池の中に酸素を添加して
硬化する方法において、予め高酸素を含有するチタン粉
末を、噴射混入することを特徴とするチタン製品の表面
硬化方法。(1) In the method of melting the surface layer of a titanium product by energy irradiation from a high-energy source and adding oxygen to this molten pool to harden it, titanium powder containing high oxygen content is injected into the molten pool in advance. A surface hardening method for titanium products characterized by:
ルギー照射で溶解し、この溶融池の中に酸素を添加して
硬化する方法において、予め高酸素を含有するチタン粉
末と、硬質材粉末を混合して、噴射混入することを特徴
とするチタン製品の表面硬化方法。(2) In a method in which the surface layer of a titanium product is melted by energy irradiation from a high-energy source and then hardened by adding oxygen to this molten pool, titanium powder containing high oxygen content and hard material powder are mixed in advance. A method for surface hardening titanium products, characterized by mixing and spraying.
ルギー照射で溶解し、この溶融池の中に酸素を添加して
硬化する方法において、予め高酸素を含有するチタン粉
末を噴射混合し、次いで硬質材粉末を噴射混入すること
を特徴とするチタン製品の表面硬化方法。(3) In a method in which the surface layer of a titanium product is melted by energy irradiation from a high-energy source and then hardened by adding oxygen to this molten pool, titanium powder containing high oxygen content is injected and mixed in advance, and then A method for hardening the surface of titanium products, which comprises spraying and mixing hard material powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314791A JPH0776431B2 (en) | 1987-12-11 | 1987-12-11 | Surface hardening method for titanium products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314791A JPH0776431B2 (en) | 1987-12-11 | 1987-12-11 | Surface hardening method for titanium products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01156457A true JPH01156457A (en) | 1989-06-20 |
| JPH0776431B2 JPH0776431B2 (en) | 1995-08-16 |
Family
ID=18057637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62314791A Expired - Fee Related JPH0776431B2 (en) | 1987-12-11 | 1987-12-11 | Surface hardening method for titanium products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0776431B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03249185A (en) * | 1990-02-28 | 1991-11-07 | Isuzu Motors Ltd | Surface hardening of aluminum and aluminum alloy |
| JPH04285164A (en) * | 1991-03-11 | 1992-10-09 | Kobe Steel Ltd | Wear resistant ti or ti base alloy member excellent in lubricity |
| FR2693925A1 (en) * | 1992-07-23 | 1994-01-28 | Sevenans Inst Polytechnique | Process for the preparation and surface coating and device for carrying out said process |
| JP2006095589A (en) * | 2004-09-30 | 2006-04-13 | Teigu:Kk | Surface hardening method for titanium material |
| JP2007285769A (en) * | 2006-04-13 | 2007-11-01 | Ngk Spark Plug Co Ltd | Gas sensor |
| US20130299470A1 (en) * | 2012-05-10 | 2013-11-14 | Korea Hydro And Nuclear Power Co., Ltd. | Method for oxide dispersion strengthening of metallic material using laser |
| JP6075387B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium slab for hot rolling in which surface flaws are unlikely to occur and method for producing the same |
| JP6075385B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium cast for hot rolling and method for producing the same |
| JP6075384B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium cast for hot rolling and method for producing the same |
| JP6075386B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium slab for hot rolling in which surface flaws are unlikely to occur and method for producing the same |
| JP2018104778A (en) * | 2016-12-27 | 2018-07-05 | 勝義 近藤 | Sintered cutter material and manufacturing method therefor |
| WO2018181937A1 (en) * | 2017-03-31 | 2018-10-04 | 日本発條株式会社 | Titanium alloy material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61231151A (en) * | 1985-04-08 | 1986-10-15 | Kobe Steel Ltd | Surface hardening treatment for titanium or titanium alloy |
| JPS6256561A (en) * | 1985-09-06 | 1987-03-12 | Honda Motor Co Ltd | Method for hardening surface of ti or ti alloy |
-
1987
- 1987-12-11 JP JP62314791A patent/JPH0776431B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61231151A (en) * | 1985-04-08 | 1986-10-15 | Kobe Steel Ltd | Surface hardening treatment for titanium or titanium alloy |
| JPS6256561A (en) * | 1985-09-06 | 1987-03-12 | Honda Motor Co Ltd | Method for hardening surface of ti or ti alloy |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03249185A (en) * | 1990-02-28 | 1991-11-07 | Isuzu Motors Ltd | Surface hardening of aluminum and aluminum alloy |
| JPH04285164A (en) * | 1991-03-11 | 1992-10-09 | Kobe Steel Ltd | Wear resistant ti or ti base alloy member excellent in lubricity |
| FR2693925A1 (en) * | 1992-07-23 | 1994-01-28 | Sevenans Inst Polytechnique | Process for the preparation and surface coating and device for carrying out said process |
| JP2006095589A (en) * | 2004-09-30 | 2006-04-13 | Teigu:Kk | Surface hardening method for titanium material |
| JP2007285769A (en) * | 2006-04-13 | 2007-11-01 | Ngk Spark Plug Co Ltd | Gas sensor |
| US20130299470A1 (en) * | 2012-05-10 | 2013-11-14 | Korea Hydro And Nuclear Power Co., Ltd. | Method for oxide dispersion strengthening of metallic material using laser |
| US9346125B2 (en) * | 2012-05-10 | 2016-05-24 | Korea Atomic Energy Research Institute | Method for oxide dispersion strengthening of metallic material using laser |
| JP6075386B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium slab for hot rolling in which surface flaws are unlikely to occur and method for producing the same |
| JPWO2016051499A1 (en) * | 2014-09-30 | 2017-04-27 | 新日鐵住金株式会社 | Titanium cast for hot rolling and method for producing the same |
| JP6075384B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium cast for hot rolling and method for producing the same |
| JP6075387B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium slab for hot rolling in which surface flaws are unlikely to occur and method for producing the same |
| JPWO2016051502A1 (en) * | 2014-09-30 | 2017-04-27 | 新日鐵住金株式会社 | Titanium cast for hot rolling and method for producing the same |
| JPWO2016051503A1 (en) * | 2014-09-30 | 2017-04-27 | 新日鐵住金株式会社 | Titanium slab for hot rolling in which surface flaws are unlikely to occur and method for producing the same |
| JPWO2016051505A1 (en) * | 2014-09-30 | 2017-04-27 | 新日鐵住金株式会社 | Titanium slab for hot rolling in which surface flaws are unlikely to occur and method for producing the same |
| JP6075385B2 (en) * | 2014-09-30 | 2017-02-08 | 新日鐵住金株式会社 | Titanium cast for hot rolling and method for producing the same |
| KR20170047339A (en) * | 2014-09-30 | 2017-05-04 | 신닛테츠스미킨 카부시키카이샤 | Titanium slab for hot rolling, and production method therefor |
| EP3202951A4 (en) * | 2014-09-30 | 2018-05-02 | Nippon Steel & Sumitomo Metal Corporation | Cast titanium slab for use in hot rolling and unlikely to exhibit surface defects, and method for producing same |
| US11504765B2 (en) | 2014-09-30 | 2022-11-22 | Nippon Steel Corporation | Titanium cast product for hot rolling unlikely to exhibit surface defects and method of manufacturing the same |
| US10350658B2 (en) | 2014-09-30 | 2019-07-16 | Nippon Steel Corporation | Titanium casting product for hot rolling and method for producing the same |
| JP2018104778A (en) * | 2016-12-27 | 2018-07-05 | 勝義 近藤 | Sintered cutter material and manufacturing method therefor |
| WO2018181937A1 (en) * | 2017-03-31 | 2018-10-04 | 日本発條株式会社 | Titanium alloy material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0776431B2 (en) | 1995-08-16 |
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