Role of porosity defects in metal 3D printing: Formation mechanisms, impacts on properties and mitigation strategies

[Display omitted] Metal 3D printing (3DP), a state-of-the-art manufacturing technology that brings the potential to fabricate complex structures at low cost and reduced energy consumption, has been extensively adopted in various industries. However, the porosity defects inherited from the printing p...

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Vydané v:Materials today (Kidlington, England) Ročník 59; s. 133 - 160
Hlavní autori: Wang, Shuhao, Ning, Jinsheng, Zhu, Lida, Yang, Zhichao, Yan, Wentao, Dun, Yichao, Xue, Pengsheng, Xu, Peihua, Bose, Susmita, Bandyopadhyay, Amit
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier Ltd 01.10.2022
Predmet:
3D printing
Mechanical properties
Metallic materials
Porosity defects
Porosity elimination
CFD
EVS
Metallic materials
PV
FCGR
PREP
XCT
MPM
Porosity elimination
CCDs
EBM
K-T
μSXCT
AMed
PBF
ME
UPT
OM
WAAM
DIC
ML
UT
EN-MGGP
AC
DED
LOF
NKB
Mechanical properties
ECF
HCF
LPBF
AM
HIP
PA
SIF
CD(s)
ECT
Porosity defects
SEM
3D printing
3DP
ISSN:1369-7021, 1873-4103
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Popis
Shrnutí:[Display omitted] Metal 3D printing (3DP), a state-of-the-art manufacturing technology that brings the potential to fabricate complex structures at low cost and reduced energy consumption, has been extensively adopted in various industries. However, the porosity defects inherited from the printing process can significantly impede the mechanical properties and weaken the performance of as-printed components, potentially challenging this approach's reliability and reproducibility. The advancement of detection techniques currently opens up a more intuitive and deeper study of porosity defects. Given that, this review systematically states the 'restriction role' of porosity defects in metal 3DP by generalizing the detailed information on porosity defects, including their characterizations, formation and migration mechanisms, and their impacts on the performance of printed parts. Furthermore, feasible porosity mitigation measures are discussed to inspire more advanced methodologies for the next generation of metal 3DP.
ISSN:1369-7021
1873-4103
DOI:10.1016/j.mattod.2022.08.014