| Inhomogeneous Fatigue Characteristics of Welded Ti-6Al-4V Thick Plate by the Electron Beam Method | |
| Wang, Haiyan1; Zeng, Caiyou1; Zhang, Yupeng1; Zhou, Yu2; Dong, Chunlin1 | |
| Corresponding Author | Zhang, Yupeng(zhangyp@gwi.gd.cn) |
| 2020-04-24 | |
| Source Publication | METALS AND MATERIALS INTERNATIONAL
 |
| ISSN | 1598-9623 |
| Pages | 9 |
| Abstract | To recognize the specific safety problem brought by an increasing thickness, the layered microstructures, fatigue properties and the fractographies of a 100 mm-thick Ti-6Al-4V joint via electron beam welding were investigated. The results show that the seam zone has textural and mechanical heterogeneities in the layered thickness regions. The mid layer has the lowest fatigue life and different fracture-position tendency (more broken in seam zone) due to the hybrid influences of the grain size and the phase fraction of alpha ' and beta phases. The fatigue cracks initiate on the surfaces of fatigue specimens and grow in the transgranular fracture mode. The fatigue deformation mode is adapted to the planar-slip mechanism with different degrees of dislocation blocking in distinct layers, which results in a "mid-layer favorite" crack initiation trend. Moreover, the mid layer has the highest crack propagation rate either. Graphic |
| Keyword | Ti-6Al-4V Inhomogeneity Fatigue property Electron beam welding Thick plate |
| Funding Organization | GDAS's Project of Constructing Domestic First-class Research Institutions ; Science and Technology Planning Project of Guangdong Province |
| DOI | 10.1007/s12540-020-00719-4 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | GDAS's Project of Constructing Domestic First-class Research Institutions[2019GDASYL-0103075] ; GDAS's Project of Constructing Domestic First-class Research Institutions[2018GDASCX-0113] ; GDAS's Project of Constructing Domestic First-class Research Institutions[2020GDASYL-20200103122] ; Science and Technology Planning Project of Guangdong Province[2016B070701025] ; Science and Technology Planning Project of Guangdong Province[2017A070701026] ; Science and Technology Planning Project of Guangdong Province[2015-10] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000528415300001 |
| Publisher | KOREAN INST METALS MATERIALS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/138593 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Yupeng |
| Affiliation | 1.Guangdong Welding Inst, Key Lab Adv Welding Technol, Adv Mat R&D Ctr, Guangzhou 510651, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Haiyan,Zeng, Caiyou,Zhang, Yupeng,et al. Inhomogeneous Fatigue Characteristics of Welded Ti-6Al-4V Thick Plate by the Electron Beam Method[J]. METALS AND MATERIALS INTERNATIONAL,2020:9. |
| APA | Wang, Haiyan,Zeng, Caiyou,Zhang, Yupeng,Zhou, Yu,&Dong, Chunlin.(2020).Inhomogeneous Fatigue Characteristics of Welded Ti-6Al-4V Thick Plate by the Electron Beam Method.METALS AND MATERIALS INTERNATIONAL,9. |
| MLA | Wang, Haiyan,et al."Inhomogeneous Fatigue Characteristics of Welded Ti-6Al-4V Thick Plate by the Electron Beam Method".METALS AND MATERIALS INTERNATIONAL (2020):9. |
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