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王健.电弧增材制造TC4钛合金不同扫描策略初生β晶粒宏观形态演变[J].稀有金属材料与工程(英文),2020,49(3):857~861.[王健.Effects of different deposition strategies on prior-β grain morphology by wire and arc additive manufactured Ti-6Al-4V components[J].Rare Metal Materials and Engineering,2020,49(3):857~861.]
Effects of different deposition strategies on prior-β grain morphology by wire and arc additive manufactured Ti-6Al-4V components
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Received:January 30, 2019  Revised:June 25, 2019
DOI:
Key words: WAAM  Grain morphology  Macrostructure  Recrystallization
Foundation item:国家重点研发计划项目(2016YFB1100104)
Author NameAffiliation
王健  
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Abstract:
      Macrostructural characterisation was performed for Ti-6Al-4V components produced by wire and arc additive manufacturing (WAAM) to investigate the effects of different deposition direction and interlayer dwell time on grain morphology of prior-β. By extending the interlayer dwell time between each deposited layer, the full equiaxed β grain were obtained. The results indicated that the equiaxed β grains at the bottom were caused by recrystallization. The sizes of the equiaxed β grains at the bottom were both affected by the thermal cycle and the degree of recrystallization.