Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy
文献类型：期刊论文
| 作者 | Li YQ; Song QY ; Feng SC; Sun CQ(孙成奇)
|
| 刊名 | MATERIALS
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 11期号:9页码:1628 |
| 关键词 | high cycle fatigue very high cycle fatigue frequency effect specimen geometry effect high strength titanium alloy |
| ISSN号 | 1996-1944 |
| DOI | 10.3390/ma11091628 |
| 英文摘要 | Titanium alloys have been widely used in the structural parts of deep-sea equipment and aviation industries. In this paper, the effects of loading frequency and specimen geometry on the high cycle and very high cycle fatigue life of the high strength titanium alloy Ti-6Al-2Sn-2Zr-3Mo-X is investigated by conventional fatigue test and ultrasonic frequency fatigue test. The results indicate that ultrasonic frequency could enhance the fatigue life of the highstrength titanium alloy compared with that under conventional frequency, and the frequency effect is related to the stress amplitude. This phenomenon is explained by the heat generation in specimens and heat dissipation, in combination with the high strain rate leading to the higher yield strength in the ultrasonic fatigue test. Moreover, it is indicated that the effect of specimen geometry on the fatigue life of the highstrength titanium alloy could be evaluated from the view of control volume. |
| 分类号 | 二类 |
| URL标识 | 查看原文 |
| WOS关键词 | FRACTURE-MECHANICS ; CRACK INITIATION ; TI-6AL-4V ALLOY ; STEEL ; SIZE ; REGIME ; MODEL |
| WOS研究方向 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000446395200144 |
| 资助机构 | National Key Research and Development Program of China [2016YFC0300600] |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77941]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.China Ship Sci Res Ctr, State Key Lab Deep Sea Manned Vehicles, Wuxi 214082, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li YQ,Song QY,Feng SC,et al. Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy[J]. MATERIALS,2018,11(9):1628. |
| APA | Li YQ,Song QY,Feng SC,&孙成奇.(2018).Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy.MATERIALS,11(9),1628. |
| MLA | Li YQ,et al."Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy".MATERIALS 11.9(2018):1628. |
入库方式： OAI收割
来源：力学研究所
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