Powder sintering kinetics during electron beam based additive manufacturing

被引:1
|
作者
Zallmann, Sebastian [1 ]
Fu, Zongwen [1 ,2 ]
Koerner, Carolin [1 ,3 ]
机构
[1] Friedrich Alexander Univ Erlangen Nurnberg, Joint Inst Adv Mat & Proc, Dr Mack Str 81, D-90762 Furth, Germany
[2] Res Inst Glass & Ceram, Heinrich Meister Str 2, D-56203 Hohr Grenzhausen, Germany
[3] Friedrich Alexander Univ Erlangen Nurnberg, Chair Mat Sci & Technol Met, Dept Mat Sci, Martensstr 5, D-91058 Erlangen, Germany
关键词
Powder sintering; Electron beam powder bed fusion; Sintering kinetics; EFFICIENCY HYDROGEN-PRODUCTION; LIQUID/GAS DIFFUSION LAYERS; OPEN CELLULAR STRUCTURES; THERMAL-DIFFUSIVITY; PRACTICAL APPROACH; CURVE; ORIENTATION;
D O I
10.1016/j.powtec.2023.119332
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Electron Beam Powder Bed Fusion (PBF-EB) allows not only for the additive manufacturing of fully dense metallic components via melting but also parts with defined local pore structures and tailored functional properties through selective sintering. The hybrid PBF-EB technology based on the combination of selective sintering and melting is, e.g., of great interest for the fabrication of porous electrodes composed of titaniumbased alloys with high specific surface area, which are widely used for electrochemical processes (e.g., as anode for water electrolysis cells). This study aims to provide a comprehensive understanding of the sintering kinetics of Ti6Al4V (especially in the first and second sintering stages) during PBF-EB. The sintering degrees of the PBF-EB-processed Ti6Al4V samples are characterized by determining the thermal diffusivity measured by laser flash analysis. At the same time, the thermal history during PBF-EB is analyzed using a pyrometer. The correlation between the sintering degrees and the process parameters utilized in the PBF-EB procedure is discussed by calculating the activation energy of sintering and described using a master sintering curve. Based on the findings of this study, it is possible to control the sintering process of Ti6Al4V powder in a targeted manner by utilizing various PBF-EB parameters.
引用
收藏
页数:10
相关论文
共 50 条
  • [1] Powder sintering mechanisms during the pre-heating procedure of electron beam additive manufacturing
    Yan, Wentao
    Ma, Weixin
    Shen, Yongxing
    [J]. MATERIALS TODAY COMMUNICATIONS, 2020, 25
  • [2] THERMAL MODELING OF ELECTRON BEAM ADDITIVE MANUFACTURING PROCESS POWDER SINTERING EFFECTS
    Shen, Ninggang
    Chou, Kevin
    [J]. PROCEEDINGS OF THE ASME INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE, 2012, 2012, : 287 - 295
  • [3] Electron beam sintering of ceramics for additive manufacturing
    Klimov, A. S.
    Bakeev, I. Yu
    Dvilis, E. S.
    Oks, E. M.
    Zenin, A. A.
    [J]. VACUUM, 2019, 169
  • [4] Powder bed charging during electron-beam additive manufacturing
    Cordero, Zachary C.
    Meyer, Harry M., III
    Nandwana, Peeyush
    Dehoff, Ryan R.
    [J]. ACTA MATERIALIA, 2017, 124 : 437 - 445
  • [5] REVIEW ON POWDER-BASED ELECTRON BEAM ADDITIVE MANUFACTURING TECHNOLOGY
    Gong, Xibing
    Anderson, Ted
    Chou, Kevin
    [J]. PROCEEDINGS OF THE ASME/ISCIE INTERNATIONAL SYMPOSIUM ON FLEXIBLE AUTOMATION, ISFA 2012, 2013, : 507 - 515
  • [6] Review on powder-based electron beam additive manufacturing technology
    Gong, Xibing
    Anderson, Ted
    Chou, Kevin
    [J]. MANUFACTURING REVIEW, 2014, 1
  • [7] Additive manufacturing of powder components based on subtractive sintering approach
    Carrillo, Maricruz Henkel
    Lee, Geuntak
    Maniere, Charles
    Olevsky, Eugene A.
    [J]. RAPID PROTOTYPING JOURNAL, 2021, 27 (09) : 1731 - 1736
  • [8] Review on electron beam based additive manufacturing
    Negi, Seema
    Nambolan, Athul Arun
    Kapil, Sajan
    Joshi, Prathamesh Shreekant
    Manivannan, R.
    Karunakaran, K. P.
    Bhargava, Parag
    [J]. RAPID PROTOTYPING JOURNAL, 2020, 26 (03) : 485 - 498
  • [9] Temperature Measurements in Powder-Bed Electron Beam Additive Manufacturing
    Price, Steven
    Lydon, James
    Cooper, Ken
    Chou, Kevin
    [J]. PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014, VOL 2A, 2014,
  • [10] Non-equilibrium solidification behavior associated with powder characteristics during electron beam additive manufacturing
    Zhao, Yufan
    Bian, Huakang
    Wang, Hao
    Kenta, Aoyagi
    Kenta, Yamanaka
    Chiba, Akihiko
    [J]. MATERIALS & DESIGN, 2022, 221