TY - JOUR
T1 - Toward Control of Microstructure in Microscale Additive Manufacturing of Copper Using Localized Electrodeposition
AU - Daryadel, Soheil
AU - Behroozfar, Ali
AU - Minary-Jolandan, Majid
N1 - Funding Information:
This work was supported by the NSF-CMMI (award # 1727539) and US Office of Naval Research (award # N00014-15-1-2795).
Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/1
Y1 - 2019/1
N2 - The progress in microscale additive manufacturing (μ-AM) of metals requires engineering of the microstructure for various functional applications. In particular, achieving in situ control over the microstructure during 3D printing is critical to eliminate the need for post-processing and annealing. Recent reports have demonstrated the possibility of electrochemical μ-AM of nanotwinned metals, in which the presence of parallel arrays of twin boundaries (TBs) are known to enhance mechanical and electrical properties. For the first time, the authors report that the microstructure of metals printed using the microscale localized pulsed electrodeposition (L-PED) process can be controlled in situ during 3D-printing. In particular, the authors show that through electrochemical process parameters the density and the orientation of the TBs, as well as the grain size can be controlled. The results of the in situ SEM microcompression experiments on directly 3D-printed micro-pillars show that such control over microstructure directly correlates with the mechanical properties of the printed metal.
AB - The progress in microscale additive manufacturing (μ-AM) of metals requires engineering of the microstructure for various functional applications. In particular, achieving in situ control over the microstructure during 3D printing is critical to eliminate the need for post-processing and annealing. Recent reports have demonstrated the possibility of electrochemical μ-AM of nanotwinned metals, in which the presence of parallel arrays of twin boundaries (TBs) are known to enhance mechanical and electrical properties. For the first time, the authors report that the microstructure of metals printed using the microscale localized pulsed electrodeposition (L-PED) process can be controlled in situ during 3D-printing. In particular, the authors show that through electrochemical process parameters the density and the orientation of the TBs, as well as the grain size can be controlled. The results of the in situ SEM microcompression experiments on directly 3D-printed micro-pillars show that such control over microstructure directly correlates with the mechanical properties of the printed metal.
KW - localized electrodeposition (LED)
KW - micro-scale additive manufacturing (μ-AM) of metals
KW - microstructural control
KW - nanotwinned metals
UR - http://www.scopus.com/inward/record.url?scp=85057962150&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85057962150&partnerID=8YFLogxK
U2 - 10.1002/adem.201800946
DO - 10.1002/adem.201800946
M3 - Article
AN - SCOPUS:85057962150
VL - 21
JO - Advanced Engineering Materials
JF - Advanced Engineering Materials
SN - 1438-1656
IS - 1
M1 - 1800946
ER -