Fatigue Behavior and Failure Analysis of Ti-6Al-4V Forging with High Oxygen Content

被引：0
|
作者：
Liu, Yunxi [1 ,2 ]
Chen, Wei [1 ]
Li, Zhiqiang [1 ,2 ]
Tang, Bin [3 ]
Yao, Gang [1 ]
机构：
[1] AVIC Mfg Technol Inst, Beijing 100024, Peoples R China
[2] Aviat Key Lab Sci & Technol Plast Forming, Beijing 100024, Peoples R China
[3] Northwestern Polytech Univ, Xian 710072, Peoples R China
来源：
HIGH PERFORMANCE STRUCTURAL MATERIALS | 2018年
关键词：
Ti-6Al-4V alloy; Basal texture; High cycle fatigue; Life distribution; High oxygen content; TITANIUM; VARIABILITY; ALLOY;
D O I：
10.1007/978-981-13-0104-9_47
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure, texture and HCF (high cycle fatigue) behavior of a Ti-6Al-4V forging with 0.20 wt% oxygen were investigated. The material was composed of 80 vol% of equiaxed alpha(p) grains and 20 vol% of transformed beta (beta(T)). Average size of the alpha(p) phase was about 14 mu m. EBSD analysis indicated a weak basal texture with intensity of 2 times random. The forging billet exhibited a good combination of ductility and strength performance and the mechanical properties did not show obvious anisotropy. The fatigue life had a large scatter and the mean life increased as the stress level decreased. The minimum life and POF = 0.1% life of the samples increased with the decrease of stress level. The difference of the feature of facets at the fatigue crack initiation region is considered to be the main cause of fatigue life scatter. The formation of the faceted area in fatigue crack initiation area results from the nucleation site of fatigue crack located in grain clusters with similar orientation.
引用
收藏
页码：441 / 450
页数：10
相关论文
共 50 条
  • [41] Effect of Oxygen Content on Microstructure and Mechanical Properties of Additive Manufactured Ti-6Al-4V
    Kang, Tae Jin
    Narayana, P. L.
    Choi, Seong Woo
    Kim, Jae Hyuk
    Hong, Jae-Keun
    Lee, Taekyung
    KOREAN JOURNAL OF METALS AND MATERIALS, 2023, 61 (09): : 714 - 720
  • [42] Fatigue behavior of Ti-6Al-4V foams processed by magnesium space holder technique
    Asik, E. Erkan
    Bor, Sakir
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 621 : 157 - 165
  • [43] STRUCTURE AND PITTING CORROSION OF Ti-6Al-4V ALLOY AND Ti-6Al-4V WELDS
    Ferdinandov, Nikolay Vasilev
    Gospodinov, Danail Dimitrov
    Ilieva, Mariana Dimitrova
    Radev, Rossen Hristov
    PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND SYSTEMS, 2018, : 325 - 330
  • [44] Thermal analysis in Ti-6Al-4V drilling
    Lazoglu, Ismail
    Poulachon, Gerard
    Ramirez, Christophe
    Akmal, Mohammad
    Marcon, Bertrand
    Rossi, Frederic
    Outeiro, Jose C.
    Krebs, Michael
    CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2017, 66 (01) : 105 - 108
  • [45] Plastic behavior of the α′ phase in Ti-6Al-4V alloys
    Castioni, Florian
    Cazottes, Sophie
    Rollett, Anthony D.
    Dancette, Sylvain
    MATERIALS LETTERS, 2021, 283
  • [46] Corrosion fatigue behaviour of Ti-6Al-4V in methanol environment
    Baragetti, Sergio
    SURFACE AND INTERFACE ANALYSIS, 2013, 45 (10) : 1654 - 1658
  • [47] Fatigue strength of Ti-6Al-4V at very long lives
    Morrissey, RJ
    Nicholas, T
    INTERNATIONAL JOURNAL OF FATIGUE, 2005, 27 (10-12) : 1608 - 1612
  • [48] Fatigue Behaviour of Notched Ti-6Al-4V in Inert Environment
    Baragetti, Sergio
    Cavalleri, Stefano
    Tordini, Federico
    ADVANCES IN FRACTURE AND DAMAGE MECHANICS X, 2012, 488-489 : 502 - 505
  • [49] Effects of vacuum environment on small fatigue crack propagation in Ti-6Al-4V
    Yoshinaka, Fumiyoshi
    Nakamura, Takashi
    Takaku, Kazuaki
    INTERNATIONAL JOURNAL OF FATIGUE, 2016, 91 : 29 - 38
  • [50] Influence of complex LCF and dwell load regimes on fatigue of Ti-6Al-4V
    Tympel, P. O.
    Lindley, T. C.
    Saunders, E. A.
    Dixon, M.
    Dye, D.
    ACTA MATERIALIA, 2016, 103 : 77 - 88
12345