| Research Viewpoint on Performance Enhancement for Very-High-Cycle Fatigue of Ti-6Al-4V Alloys via Laser-Based Powder Bed Fusion | |
Gao, Chun1,2; Zhang, Yang3 ; Jiang, Jingjiang4; Fu, Rui5; Du, Leiming6; Pan XN(潘向南)7
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| Corresponding Author | Pan, Xiangnan([email protected]) |
| Source Publication | CRYSTALS
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| 2024-09-01 | |
| Volume | 14Issue:9Pages:23 |
| Abstract | Additive manufacturing (AM) or 3D printing is a promising industrial technology that enables rapid prototyping of complex configurations. Powder Bed Fusion (PBF) is one of the most popular AM techniques for metallic materials. Until today, only a few metals and alloys are available for AM, e.g., titanium alloys, the most common of which is Ti-6Al-4V. After optimization of PBF parameters, with or without post processing such as heat treatment or hot isostatic pressing, the printed titanium alloy can easily reach tensile strengths of over 1100 MPa due to the quick cooling of the AM process. However, attributed to the unique features of metallurgical defects and microstructure introduced by this AM process, their fatigue strength has been low, often less than 30% of the tensile strength, especially in very-high-cycle regimes, i.e., failure life beyond 107 cycles. Here, based on our group's research on the very-high-cycle fatigue (VHCF) of additively manufactured (AMed) Ti-6Al-4V alloys, we have refined the basic quantities of porosity, metallurgical defects, and the AMed microstructure, summarized the main factors limiting their VHCF strengths, and suggested possible ways to improve VHCF performance. |
| Keyword | titanium alloy additive manufacturing (AM) powder bed fusion (PBF) heat treatment hot isostatic pressing (HIP) very-high-cycle fatigue (VHCF) crack initiation metallurgical defect microstructure fatigue strength |
| DOI | 10.3390/cryst14090749 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001323674600001 |
| WOS Keyword | REGIME N-GREATER-THAN-10(7) CYCLES ; ADDITIVELY MANUFACTURED TI-6AL-4V ; CHROMIUM-BEARING STEEL ; CRACK INITIATION ; EARLY GROWTH ; TITANIUM-ALLOY ; EQUIAXED MICROSTRUCTURE ; MECHANICAL-PROPERTIES ; LIFE ; STRENGTH |
| WOS Research Area | Crystallography ; Materials Science |
| WOS Subject | Crystallography ; Materials Science, Multidisciplinary |
| Funding Project | Youth Doctoral Fundation Project of Harbin University[HUDF2021106] |
| Funding Organization | Youth Doctoral Fundation Project of Harbin University |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Pan, Xiangnan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96890 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Harbin Univ, Sch Civil Engn, Harbin 150086, Peoples R China; 2.Harbin Univ, Heilongjiang Prov Key Lab Underground Engn Technol, Harbin 150086, Peoples R China; 3.China Construct Sixth Engn Div Co Ltd, Tianjin 300012, Peoples R China; 4.Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Peoples R China; 5.Guangxi Univ, Sch Mech Engn, Nanning 530004, Peoples R China; 6.Delft Univ Technol, Dept Microelect, NL-2628 CD Delft, Netherlands; 7.Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, Chun,Zhang, Yang,Jiang, Jingjiang,et al. Research Viewpoint on Performance Enhancement for Very-High-Cycle Fatigue of Ti-6Al-4V Alloys via Laser-Based Powder Bed Fusion[J]. CRYSTALS,2024,14,9,:23.Rp_Au:Pan, Xiangnan |
| APA | Gao, Chun,Zhang, Yang,Jiang, Jingjiang,Fu, Rui,Du, Leiming,&潘向南.(2024).Research Viewpoint on Performance Enhancement for Very-High-Cycle Fatigue of Ti-6Al-4V Alloys via Laser-Based Powder Bed Fusion.CRYSTALS,14(9),23. |
| MLA | Gao, Chun,et al."Research Viewpoint on Performance Enhancement for Very-High-Cycle Fatigue of Ti-6Al-4V Alloys via Laser-Based Powder Bed Fusion".CRYSTALS 14.9(2024):23. |
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