http://scholars.ntou.edu.tw/handle/123456789/4688
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | L. W. Tsay | en_US |
dc.contributor.author | Y. S. Ding | en_US |
dc.contributor.author | W. C. Chung | en_US |
dc.contributor.author | C. Chen | en_US |
dc.date.accessioned | 2020-11-19T02:23:44Z | - |
dc.date.available | 2020-11-19T02:23:44Z | - |
dc.date.issued | 2010-03-20 | - |
dc.identifier.issn | 1073-5623 | - |
dc.identifier.uri | http://scholars.ntou.edu.tw/handle/123456789/4688 | - |
dc.description.abstract | Fatigue crack growth tests of Ti-4.5Al-3V-2Fe-2Mo (SP-700) laser welds after various postweld heat treatments (PWHTs) were investigated. The welds and the mill-annealed base metal had similar fatigue crack growth rates (FCGRs) at a stress ratio (R) of 0.1. After increasing the stress ratio to 0.5, the peak-aged (482 °C) weld exhibited higher FCGRs due to increased notch brittleness of the material. The tough microstructure as well as tortuous crack path of the overaged (704 °C) weld could account for the reduced FCGRs, particularly at a higher R. The fatigue fracture appearance of the welds varied from transgranular to intergranular failures, depending on the stress intensity factor ranges and PWHTs. Experimental results also demonstrated that the 704 °C-aged weld with coarsened α + β structures had better impact toughness than the base metal with banded structures. | en_US |
dc.language.iso | en | en_US |
dc.relation.ispartof | Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science | en_US |
dc.subject | Weld Metal | en_US |
dc.subject | Fatigue Crack Growth | en_US |
dc.subject | PWHT | en_US |
dc.subject | Plastic Zone Size | en_US |
dc.subject | Fatigue Crack Growth Behavior | en_US |
dc.title | Fatigue Crack Growth Behavior of Ti-4.5Al-3V-2Fe-2Mo Laser Welds | en_US |
dc.type | journal article | en_US |
dc.identifier.doi | 10.1007/s11661-010-0200-z | - |
dc.identifier.isi | WOS:000277022700014 | - |
dc.relation.journalvolume | 41A | en_US |
dc.relation.journalissue | 6 | en_US |
dc.relation.pages | 1502–1510 | 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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