FR2486103A1 - Composition pour le revetement de metaux ferreux par diffusion a base de titane, d'oxyde d'aluminium et d'un halogenure d'ammonium - Google Patents
Composition pour le revetement de metaux ferreux par diffusion a base de titane, d'oxyde d'aluminium et d'un halogenure d'ammonium Download PDFInfo
- Publication number
- FR2486103A1 FR2486103A1 FR8014736A FR8014736A FR2486103A1 FR 2486103 A1 FR2486103 A1 FR 2486103A1 FR 8014736 A FR8014736 A FR 8014736A FR 8014736 A FR8014736 A FR 8014736A FR 2486103 A1 FR2486103 A1 FR 2486103A1
- Authority
- FR
- France
- Prior art keywords
- diffusion layer
- titanium
- ammonium
- diffusion
- chloride
- 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
- 238000009792 diffusion process Methods 0.000 title claims abstract description 344
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 177
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 239000010936 titanium Substances 0.000 title claims abstract description 99
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 99
- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000011248 coating agent Substances 0.000 title claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 55
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 53
- 239000010439 graphite Substances 0.000 title claims abstract description 53
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 title 2
- 239000002245 particle Substances 0.000 claims abstract description 138
- -1 ferrous metals Chemical class 0.000 claims abstract description 115
- 239000000203 mixture Substances 0.000 claims description 199
- 239000004615 ingredient Substances 0.000 claims description 125
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 118
- 239000000843 powder Substances 0.000 claims description 90
- 238000005260 corrosion Methods 0.000 abstract description 96
- 230000007797 corrosion Effects 0.000 abstract description 96
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 77
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical class [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 abstract description 39
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract description 39
- 235000011152 sodium sulphate Nutrition 0.000 abstract description 39
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 335
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 162
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 156
- 235000019270 ammonium chloride Nutrition 0.000 description 80
- 239000011780 sodium chloride Substances 0.000 description 78
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 76
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 76
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 76
- 238000000034 method Methods 0.000 description 45
- 229910052799 carbon Inorganic materials 0.000 description 43
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 40
- 239000008240 homogeneous mixture Substances 0.000 description 40
- 238000012360 testing method Methods 0.000 description 40
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 39
- 238000012916 structural analysis Methods 0.000 description 39
- 229910001626 barium chloride Inorganic materials 0.000 description 38
- 229910001629 magnesium chloride Inorganic materials 0.000 description 38
- 229910000027 potassium carbonate Inorganic materials 0.000 description 38
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 38
- 235000017557 sodium bicarbonate Nutrition 0.000 description 38
- 238000012423 maintenance Methods 0.000 description 28
- 229910001018 Cast iron Inorganic materials 0.000 description 26
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 26
- 229910052804 chromium Inorganic materials 0.000 description 26
- 239000011651 chromium Substances 0.000 description 26
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 24
- 229910000975 Carbon steel Inorganic materials 0.000 description 21
- 239000010962 carbon steel Substances 0.000 description 21
- XZXYQEHISUMZAT-UHFFFAOYSA-N 2-[(2-hydroxy-5-methylphenyl)methyl]-4-methylphenol Chemical compound CC1=CC=C(O)C(CC=2C(=CC=C(C)C=2)O)=C1 XZXYQEHISUMZAT-UHFFFAOYSA-N 0.000 description 20
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 20
- 229940107816 ammonium iodide Drugs 0.000 description 20
- 229910052759 nickel Inorganic materials 0.000 description 20
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 18
- 229910052750 molybdenum Inorganic materials 0.000 description 18
- 239000011733 molybdenum Substances 0.000 description 18
- 229910000851 Alloy steel Inorganic materials 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 17
- 238000012545 processing Methods 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000010935 stainless steel Substances 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 229910001060 Gray iron Inorganic materials 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 238000001033 granulometry Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 239000002671 adjuvant Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 101100219041 Caenorhabditis briggsae bre-2.1 gene Proteins 0.000 description 1
- 101100219042 Caenorhabditis elegans bre-2 gene Proteins 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001674048 Phthiraptera Species 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 230000003313 weakening effect Effects 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
- 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
-
- 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
- C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
- C23C12/02—Diffusion in one step
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)
- Laminated Bodies (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8014736A FR2486103A1 (fr) | 1980-07-02 | 1980-07-02 | Composition pour le revetement de metaux ferreux par diffusion a base de titane, d'oxyde d'aluminium et d'un halogenure d'ammonium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8014736A FR2486103A1 (fr) | 1980-07-02 | 1980-07-02 | Composition pour le revetement de metaux ferreux par diffusion a base de titane, d'oxyde d'aluminium et d'un halogenure d'ammonium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2486103A1 true FR2486103A1 (fr) | 1982-01-08 |
| FR2486103B1 FR2486103B1 (Direct) | 1984-01-13 |
Family
ID=9243769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8014736A Granted FR2486103A1 (fr) | 1980-07-02 | 1980-07-02 | Composition pour le revetement de metaux ferreux par diffusion a base de titane, d'oxyde d'aluminium et d'un halogenure d'ammonium |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2486103A1 (Direct) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2536422A1 (fr) * | 1982-11-18 | 1984-05-25 | Creusot Loire | Procede de revetement en carbures de surfaces metalliques |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR447606A (fr) * | 1912-03-04 | 1913-01-10 | Giulio Sirovich | Perfectionnements dans les procédés de cémentation par diffusion |
| FR1582301A (Direct) * | 1967-12-14 | 1969-09-26 | ||
| FR2057003A1 (Direct) * | 1969-08-06 | 1971-05-07 | Plansee Metallwerk | |
| FR2134220A1 (fr) * | 1971-04-27 | 1972-12-08 | Snecma | Procede en phase vapeur pour le recouvrement de surfaces au moyen de derives du titane |
| GB1314528A (en) * | 1969-06-06 | 1973-04-26 | Chrome Alloying Co | Pack diffusion coating with titanium |
| FR2370106A1 (fr) * | 1976-11-04 | 1978-06-02 | Gen Electric | Procede pour ameliorer la resistance a l'oxydation et a la corrosion a chaud des superalliages |
-
1980
- 1980-07-02 FR FR8014736A patent/FR2486103A1/fr active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR447606A (fr) * | 1912-03-04 | 1913-01-10 | Giulio Sirovich | Perfectionnements dans les procédés de cémentation par diffusion |
| FR1582301A (Direct) * | 1967-12-14 | 1969-09-26 | ||
| GB1314528A (en) * | 1969-06-06 | 1973-04-26 | Chrome Alloying Co | Pack diffusion coating with titanium |
| FR2057003A1 (Direct) * | 1969-08-06 | 1971-05-07 | Plansee Metallwerk | |
| FR2134220A1 (fr) * | 1971-04-27 | 1972-12-08 | Snecma | Procede en phase vapeur pour le recouvrement de surfaces au moyen de derives du titane |
| FR2370106A1 (fr) * | 1976-11-04 | 1978-06-02 | Gen Electric | Procede pour ameliorer la resistance a l'oxydation et a la corrosion a chaud des superalliages |
Non-Patent Citations (1)
| Title |
|---|
| CA1979 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2536422A1 (fr) * | 1982-11-18 | 1984-05-25 | Creusot Loire | Procede de revetement en carbures de surfaces metalliques |
| EP0112206A1 (fr) * | 1982-11-18 | 1984-06-27 | Creusot-Loire | Procédé de revêtement en carbures de surfaces métalliques |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2486103B1 (Direct) | 1984-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |