http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113188965-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2015-0277 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-1706 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N15-0205 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-1702 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N15-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-17 |
| filingDate | 2021-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113188965-B |
| titleOfInvention | Surface wave-based nondestructive evaluation method for grain size of metal additive product |
| abstract | The invention discloses a nondestructive evaluation method for the grain size of a metal additive product based on laser ultrasonic surface waves, which obtains grain size gradient distribution samples through different preparation processes or different heat treatment methods; setting detection points with the same distance on each sample, collecting surface wave signals of each detection point, carrying out noise reduction processing on the collected signals and calculating a surface wave attenuation rule; analyzing the relation between the surface wave attenuation coefficient and the average grain size based on the attenuation rule of the surface wave in the metal additive manufactured part, establishing a polynomial function fitting model based on the experimental surface wave attenuation coefficient and the average grain size, and detecting a sample to be detected by using the model and the surface wave to obtain the grain size of the metal additive manufactured part. |
| priorityDate | 2021-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.