Fatigue behaviour of L-DED processed Ti-6Al-4V with microstructures refined by trace boron addition

Kai Zhang,Ying Liu,Xinni Tian,Yi Yang,Yuman Zhu,Michael Bermingham,Aijun Huang

International Journal of Fatigue（2023）

引用 5|浏览4

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摘要

•A mixed equiaxed + columnar prior-β grain microstructure was achieved by 0.05 wt% boron addition.•High-cycle fatigue property was improved significantly in Ti-64-0.05B.•Fatigue crack propagation resistance was reduced due to the prior-β grain size reduction and the TiB particle precipitation.

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关键词

Laser direct energy deposition,Titanium alloys,Fatigue properties,Microstructure characterization

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