GB754188A - Improvements relating to the surface finishing of zirconium and alloys thereof - Google Patents
Improvements relating to the surface finishing of zirconium and alloys thereofInfo
- Publication number
- GB754188A GB754188A GB31956/54A GB3195654A GB754188A GB 754188 A GB754188 A GB 754188A GB 31956/54 A GB31956/54 A GB 31956/54A GB 3195654 A GB3195654 A GB 3195654A GB 754188 A GB754188 A GB 754188A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- parts
- alloys
- zirconium
- surface finishing
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Abstract
In a method of chemically polishing and brightening Zr and Zr-base alloys the metal is immersed in a mixture consisting of, by volume, 2-3 parts HNO3, 1-2 parts H2SO4, 1-2 parts HF and 4-5 parts water. Particularly useful is a mixture consisting of, by volume, 10-60 per cent, preferably 35 per cent, HNO3, 5-35 per cent, preferably 10 per cent, H2SO4, 7-30 per cent, preferably 15 per cent., HF and 20-50 per cent, preferably 40 per cent., water. The strengths of the acids used are respectively, by weight, 70 per cent., 95,5 per cent., and 48 per cent, and the solutions are best used in the temperature range of room temperature to 90 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US754188XA | 1953-12-28 | 1953-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB754188A true GB754188A (en) | 1956-08-01 |
Family
ID=22125609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31956/54A Expired GB754188A (en) | 1953-12-28 | 1954-11-04 | Improvements relating to the surface finishing of zirconium and alloys thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB754188A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2977204A (en) * | 1959-08-14 | 1961-03-28 | Donald W Shannon | Method of improving corrosion resistance of zirconium |
| CN114689411A (en) * | 2020-12-29 | 2022-07-01 | 中核北方核燃料元件有限公司 | Preparation method of Zr-4 alloy welding metallographic sample |
-
1954
- 1954-11-04 GB GB31956/54A patent/GB754188A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2977204A (en) * | 1959-08-14 | 1961-03-28 | Donald W Shannon | Method of improving corrosion resistance of zirconium |
| CN114689411A (en) * | 2020-12-29 | 2022-07-01 | 中核北方核燃料元件有限公司 | Preparation method of Zr-4 alloy welding metallographic sample |
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