Research Viewpoint on Performance Enhancement for Very-High-Cycle Fatigue of Ti-6Al-4V Alloys via Laser-Based Powder Bed Fusion
文献类型：期刊论文
| 作者 | Gao, Chun6,7; Zhang, Yang5 ; Jiang, Jingjiang4; Fu, Rui3; Du, Leiming2; Pan XN(潘向南)1
|
| 刊名 | CRYSTALS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 14期号:9页码:23 |
| 关键词 | 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 |
| 通讯作者 | Pan, Xiangnan(panxiangnan@lnm.imech.ac.cn) |
| 英文摘要 | 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. |
| 分类号 | 二类 |
| WOS关键词 | 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 |
| 资助项目 | Youth Doctoral Fundation Project of Harbin University[HUDF2021106] |
| WOS研究方向 | Crystallography ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001323674600001 |
| 资助机构 | Youth Doctoral Fundation Project of Harbin University |
| 其他责任者 | Pan, Xiangnan |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96889]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China 2.Delft Univ Technol, Dept Microelect, NL-2628 CD Delft, Netherlands; 3.Guangxi Univ, Sch Mech Engn, Nanning 530004, Peoples R China; 4.Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Peoples R China; 5.China Construct Sixth Engn Div Co Ltd, Tianjin 300012, Peoples R China; 6.Harbin Univ, Heilongjiang Prov Key Lab Underground Engn Technol, Harbin 150086, Peoples R China; 7.Harbin Univ, Sch Civil Engn, Harbin 150086, Peoples R China; |
| 推荐引用方式 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. |
| 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. |
入库方式： OAI收割
来源：力学研究所
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