http://scholars.ntou.edu.tw/handle/123456789/19924
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | L.W. Tsay | en_US |
dc.contributor.author | H.H. Lin | en_US |
dc.contributor.author | R.K.Shiue | en_US |
dc.date.accessioned | 2022-01-18T01:45:20Z | - |
dc.date.available | 2022-01-18T01:45:20Z | - |
dc.date.issued | 2004-11 | - |
dc.identifier.uri | http://scholars.ntou.edu.tw/handle/123456789/19924 | - |
dc.description.abstract | The effect of hydrogen embrittlement on the fatigue crack growth of IN 718 plate and laser-annealed specimens in hydrogen containing environment were investigated. Although the differences in tensile strength and impact toughness between solution-annealed (S) and aged (A) IN 718 specimens were significant, the experimental results indicated that both specimens within the low ΔK regime exhibited a similar fatigue behavior. As the ΔK increased above 30 MPa , the solution-annealed specimen revealed a higher fatigue crack growth rate (FCGR) than the aged one. In general, the IN 718 alloy had a low sensitivity to hydrogen-enhanced fatigue crack growth, independent of hydrogen sources. Residual compressive stresses ahead of the crack tip were responsible for the improved resistance to fatigue crack growth in a laser-annealed specimen. For alloys with similar strength, IN 718 alloy trapped a huge amount of hydrogen in the matrix showing a less susceptibility to hydrogen-enhanced fatigue crack growth in comparison with the maraging steel. Additionally, fatigue-fractured appearance near crack initiation sites reveals quasi-cleavage fracture in embrittled specimens. | en_US |
dc.language.iso | en | en_US |
dc.subject | IN 718 | en_US |
dc.subject | Hydrogen-enhanced crack growth | en_US |
dc.subject | Quasi-cleavage | en_US |
dc.subject | Laser-annealed treatment | en_US |
dc.title | Fatigue crack growth behavior of laser-annealed IN 718 alloy in hydrogen | en_US |
dc.type | journal article | en_US |
dc.identifier.doi | 10.1016/j.corsci.2004.03.012 | - |
dc.relation.journalvolume | 46 | en_US |
dc.relation.journalissue | 11 | en_US |
dc.relation.pages | 2651-2662 | en_US |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.fulltext | no fulltext | - |
item.languageiso639-1 | en | - |
crisitem.author.dept | College of Electrical Engineering and Computer Science | - |
crisitem.author.dept | Department of Optoelectronics and Materials Technology | - |
crisitem.author.dept | National Taiwan Ocean University,NTOU | - |
crisitem.author.dept | Center of Excellence for Ocean Engineering | - |
crisitem.author.dept | Ocean Energy and Engineering Technology | - |
crisitem.author.orcid | 0000-0003-1644-9745 | - |
crisitem.author.parentorg | National Taiwan Ocean University,NTOU | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | National Taiwan Ocean University,NTOU | - |
crisitem.author.parentorg | Center of Excellence for Ocean Engineering | - |
顯示於: | 光電與材料科技學系 |
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