JPH0312153B2 - - Google Patents
Info
- Publication number
- JPH0312153B2 JPH0312153B2 JP3749281A JP3749281A JPH0312153B2 JP H0312153 B2 JPH0312153 B2 JP H0312153B2 JP 3749281 A JP3749281 A JP 3749281A JP 3749281 A JP3749281 A JP 3749281A JP H0312153 B2 JPH0312153 B2 JP H0312153B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- pitting corrosion
- test piece
- oxide film
- corrosion resistance
- 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
- 238000005260 corrosion Methods 0.000 claims description 34
- 230000007797 corrosion Effects 0.000 claims description 34
- 229910000838 Al alloy Inorganic materials 0.000 claims description 30
- 238000005530 etching Methods 0.000 claims description 12
- 238000007654 immersion Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
- ing And Chemical Polishing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3749281A JPS57152469A (en) | 1981-03-16 | 1981-03-16 | Surface treatment of al alloy for providing superior pitting corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3749281A JPS57152469A (en) | 1981-03-16 | 1981-03-16 | Surface treatment of al alloy for providing superior pitting corrosion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57152469A JPS57152469A (en) | 1982-09-20 |
| JPH0312153B2 true JPH0312153B2 (enExample) | 1991-02-19 |
Family
ID=12499015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3749281A Granted JPS57152469A (en) | 1981-03-16 | 1981-03-16 | Surface treatment of al alloy for providing superior pitting corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57152469A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5928066B2 (ja) * | 2012-03-27 | 2016-06-01 | 株式会社Ｌｉｘｉｌ | アルミニウム押出し形材及びその表面処理方法 |
-
1981
- 1981-03-16 JP JP3749281A patent/JPS57152469A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57152469A (en) | 1982-09-20 |
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