RRA 열처리가 고순도 Al - 6.6 Zn - 2.5 Mg 합금의 강도 및 내응력 부식성에 미치는 영향에 관한 연구A Study on the Effects of the Retrogression and Reaging Treatments on the Strength and Susceptibility to Stress Corrosion Cracking of High Purity Al - 6.6Zn - 2.5 Mg Alloy
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | 구형균 | ko |
| dc.contributor.author | 박중근 | ko |
| dc.date.accessioned | 2013-02-27T08:17:21Z | - |
| dc.date.available | 2013-02-27T08:17:21Z | - |
| dc.date.created | 2012-02-06 | - |
| dc.date.created | 2012-02-06 | - |
| dc.date.issued | 1988-12 | - |
| dc.identifier.citation | 대한금속학회지, v.26, no.3, pp.273 - 281 | - |
| dc.identifier.issn | 1738-8228 | - |
| dc.identifier.uri | http://hdl.handle.net/10203/67425 | - |
| dc.description.abstract | Effects of the Retrogression and Reaging (RRA) treatments on the strength and the stress corrosion crack propagation in a high purity Al-Zn-Mg alloy were studied by measuring the hardness change and the crack growth rate as a function of the stress intensity factor using C-T specimens TEM was used to examine microstructural changes in both matrix and grain boundaries. The results showed that the RRA treatment resulted in a significant decrease of crack velocity without sacrificing T6 strength, similarly to the case of the commercial 7075 Al alloy. The RRA treated specimen showed a high overall concentration of precipitates in matrix including fine dispersion of η`. The improved SCC resistance of the RRA treated specimen is believed to closely related to increase in the size of grain boundary precipitates during the retrogression treatment. | - |
| dc.language | Korean | - |
| dc.publisher | 대한금속학회 | - |
| dc.title | RRA 열처리가 고순도 Al - 6.6 Zn - 2.5 Mg 합금의 강도 및 내응력 부식성에 미치는 영향에 관한 연구 | - |
| dc.title.alternative | A Study on the Effects of the Retrogression and Reaging Treatments on the Strength and Susceptibility to Stress Corrosion Cracking of High Purity Al - 6.6Zn - 2.5 Mg Alloy | - |
| dc.type | Article | - |
| dc.type.rims | ART | - |
| dc.citation.volume | 26 | - |
| dc.citation.issue | 3 | - |
| dc.citation.beginningpage | 273 | - |
| dc.citation.endingpage | 281 | - |
| dc.citation.publicationname | 대한금속학회지 | - |
| dc.contributor.localauthor | 박중근 | - |
| dc.contributor.nonIdAuthor | 구형균 | - |
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