JPS5582770A - Aluminum diffusion-coating method - Google Patents
Aluminum diffusion-coating methodInfo
- Publication number
- JPS5582770A JPS5582770A JP15723378A JP15723378A JPS5582770A JP S5582770 A JPS5582770 A JP S5582770A JP 15723378 A JP15723378 A JP 15723378A JP 15723378 A JP15723378 A JP 15723378A JP S5582770 A JPS5582770 A JP S5582770A
- Authority
- JP
- Japan
- Prior art keywords
- pack
- temp
- diffusion
- alloy
- powder
- 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
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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
- C23C10/48—Aluminising
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
PURPOSE:To lower the pack treating temp., in formation of a diffusion-coated layer of Al on the surface of an article by pack cementation, by using pack powder consisting of a specified amt. of Al-Cu alloy power contg. a restricted amt. of Cu, a halide and an inert carrier to facilitate diffusion of Al. CONSTITUTION:In formation of a diffusion-coated layer of Al on the surface of an article by pack cementation, pack powder of the following compsn. is used: 5-40% Cu-contg. Al-Cu alloy powder 5-40%, a halide such as NH4Cl 0.5-5% and an inert carrier such as alumina the balance. By this method the pack treating temp. required to obtain a predetermined pack layer thickness can be made lower than that of a conventional method. The practical pack temp. necessary to an effective thickness is 750-800 deg.C, and it is equal to or lower than the final aging temp. of a Ni alloy for a gas turbine blade material. Accordingly, the properties of base metal are slightly deteriorated by pack treatment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15723378A JPS5582770A (en) | 1978-12-15 | 1978-12-15 | Aluminum diffusion-coating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15723378A JPS5582770A (en) | 1978-12-15 | 1978-12-15 | Aluminum diffusion-coating method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5582770A true JPS5582770A (en) | 1980-06-21 |
Family
ID=15645138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15723378A Pending JPS5582770A (en) | 1978-12-15 | 1978-12-15 | Aluminum diffusion-coating method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582770A (en) |
-
1978
- 1978-12-15 JP JP15723378A patent/JPS5582770A/en active Pending
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