GB1310098A - Chromaluminisation - Google Patents
ChromaluminisationInfo
- Publication number
- GB1310098A GB1310098A GB1754471A GB1754471A GB1310098A GB 1310098 A GB1310098 A GB 1310098A GB 1754471 A GB1754471 A GB 1754471A GB 1754471 A GB1754471 A GB 1754471A GB 1310098 A GB1310098 A GB 1310098A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- metal vapour
- chromaluminisation
- pass
- diluent
- 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.)
- Expired
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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
1310098 Chromaluminisation; treating with Mg and Ca OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES 27 May 1971 [15 June 1970] 17544/71 Heading C7F In halide pack chromaluminisation, there is used a powder of Cr-Al alloy whereof the Cr, prior to alloying with the Al, has been mixed with an inert diluent and treated with an atmosphere containing vapour of Mg and/or Ca. The starting Cr powder may be electrolytic or magnesothermic Cr, and treatment with metal vapour may be performed as follows: (i) form a Cr powder/diluent mixture containing Mg (and/or Ca) powder or chips and heat; (2) form Cr/dilueut mixture and pass in metal vapour from external source; (3) as (2), but pass in metal vapour + inert and/or reducing gas (Ar and/or He, or H 2 ) or (4) as (2), but pass in metal vapour + halogen containing acid, e.g. HCl HBr, HI. The inert diluent used for the metal vapour treatment stage, e.g. MgO or Al 2 O 3 , may be carried through with the Cr powder to the Cr-Al alloy formation stage and pack chromaluminisation, or may be removed from the Cr with HNO 3 and replaced by another diluent. The article to be coated may be of an alloy based on one or more of Fe, Co, Ni, Mo, or W.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7021934A FR2094258A5 (en) | 1970-06-15 | 1970-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1310098A true GB1310098A (en) | 1973-03-14 |
Family
ID=9057197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1754471A Expired GB1310098A (en) | 1970-06-15 | 1971-05-27 | Chromaluminisation |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE768535A (en) |
| CA (1) | CA964898A (en) |
| DE (1) | DE2123348C3 (en) |
| FR (1) | FR2094258A5 (en) |
| GB (1) | GB1310098A (en) |
| SE (1) | SE362270B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4835010A (en) * | 1987-06-08 | 1989-05-30 | Exxon Research And Engineering Company | Aluminide dispersed ferrite diffusion coating on austenitic stainless steel substrates |
| FR2888145B1 (en) | 2005-07-07 | 2008-08-29 | Onera (Off Nat Aerospatiale) | PROCESS FOR THE MANUFACTURE AND ASSEMBLY BY BRASURE OF SUPERALLIATION BALLS AND ARTICLES MADE THEREFROM |
-
1970
- 1970-06-15 FR FR7021934A patent/FR2094258A5/fr not_active Expired
-
1971
- 1971-05-17 DE DE19712123348 patent/DE2123348C3/de not_active Expired
- 1971-05-27 GB GB1754471A patent/GB1310098A/en not_active Expired
- 1971-05-31 CA CA114,567A patent/CA964898A/en not_active Expired
- 1971-06-09 SE SE745171A patent/SE362270B/xx unknown
- 1971-06-15 BE BE768535A patent/BE768535A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2123348C3 (en) | 1975-11-27 |
| DE2123348A1 (en) | 1971-12-23 |
| DE2123348B2 (en) | 1975-03-13 |
| BE768535A (en) | 1971-12-15 |
| SE362270B (en) | 1973-12-03 |
| CA964898A (en) | 1975-03-25 |
| FR2094258A5 (en) | 1972-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |