| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5198a2a21392d6cbc0bb4898b3fb3d29 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F1-28 |
| filingDate |
1995-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e50e91863c49313c35901a9cc6774d44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fed94762e8adb2213ef00447b8c5ff0d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0cca96a49101e5f3dbc5cd515f21de89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea362768805f3da2e19b5820d141b8a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fdae27b46515492dbedf2658492d47e8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ad83965bb91b460d670069f3aae695e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02b0361c1b843ac8c63b073173bad670
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bf03b1a8b6f663da9034f06e65934e5 |
| publicationDate |
1996-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H08253879-A |
| titleOfInvention |
Low-angle grain boundary manifestation corrosion method for steel materials |
| abstract |
(57) [Abstract] [Purpose] The present invention has been impossible with the prior art (1). Clear and clear method of revealing small-angle grain boundaries with no bubbles or corrosion unevenness on the corroded surface, and (2) Large-angle grain boundaries and small-angle grain boundaries on one sample that cannot be obtained by conventional observation methods. It is to provide an observation method capable of simultaneous identification. [Structure] A steel material is polished, pre-corroded with 0.03 to 0.1N hydrochloric acid, washed with water, and 0.1 to 0.2N oxalic acid and 30 to 40% by weight of hydrogen peroxide. -Angled grain boundary appearance corrosion of steel materials by immersing hydrogen peroxide water containing 0.1 to 0.2 N sulfuric acid and methanol or ethanol instead of methanol in a mixed solution of the following volume% for 3 to 20 seconds Method. Oxalic acid: Hydrogen peroxide solution: Sulfuric acid: Methanol or ethanol = 45-55: 45-55: 7-18: 1 (volume% ratio) |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107192660-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107192660-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20210076682-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102890027-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111366526-A |
| priorityDate |
1995-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |