Journal
MATERIALS & DESIGN
Volume 46, Issue -, Pages 668-674Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2012.10.059
Keywords
Titanium alloy; Microstructure; Fatigue; Quantitative analysis
Categories
Funding
- Ministry of Education [IRT0805]
- Beijing Nova Program [2007B016]
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Through an analysis on microstructure and high cycle fatigue (HCF) properties of Ti-6Al-4V alloys which were selected from literature, the effects of microstructure types and microstructure parameters on HCF properties were investigated systematically. The results show that the HCF properties are strongly determined by microstructure types for Ti-6Al-4V. Generally the HCF strengths of different microstructures decrease in the order of bimodal, lamellar and equiaxed microstructure. Additionally, microstructure parameters such as the primary alpha (alpha(p)) content and the alpha(p) grain size in bimodal microstructures, the alpha lamellar width in lamellar microstructure and the alpha grain size in equiaxed microstructures, can influence the HCF properties. (C) 2012 Elsevier Ltd. All rights reserved.
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