Determining volume fractions of γ, γ′, γ″, δ, and MC-carbide phases in Inconel 718 as a function of its processing history using an advanced neutron diffraction procedure
采用先进的中子衍射程序测定Inconel 718中γ、γ′、γ ″、δ和MC-carbide相的体积分数,作为其加工历史的函数
作者: Nicholas C. FerreriSven C. VogelMarko Knezevic
作者单位: 1Department of Mechanical Engineering, University of New Hampshire, 03824, Durham, NH, USA
2Materials Science & Technology Division, Los Alamos National Laboratory, 87545, Los Alamos, NM, USA
刊名: Materials Science & Engineering A, 2020, Vol.781
来源数据库: Elsevier Journal
DOI: 10.1016/j.msea.2020.139228
关键词: Phase compositionPrecipitatesNeutron diffractionAdditive manufacturingInconel 718
英文摘要: Abstract(#br)In this work, quantitative crystallographic and microstructural analyses of γ, γ′, γ″, δ, and MC carbide phases are performed on wrought samples, samples fabricated via additive manufacturing (AM), and samples that underwent hot isostatic pressing (HIP) after AM of alloy Inconel 718 (IN718). In doing so, an advanced neutron diffraction-based procedure is developed facilitating the determination of volume fractions of every detectable phase in the alloy. To supplement the diffraction procedure, precipitate sizes are measured by scanning electron microscopy. Moreover, semi-quantitative elemental analyses are performed by energy dispersive spectroscopy. Finally, image thresholding is carried out on micrographs of samples that underwent cathodic dissolution to create secondary...
全文获取路径: Elsevier  (合作)
影响因子:2.108 (2012)

  • diffraction 衍射
  • carbide 碳化钙
  • neutron 中子
  • procedure 手续
  • processing 加工
  • advanced 先进的
  • history 历史
  • function 函数
  • volume 体积