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...

Full description

Saved in:
Bibliographic Details
Published in:Materials today (Kidlington, England) England), 2022-10, Vol.59, p.133-160
Main Authors: Wang, Shuhao, Ning, Jinsheng, Zhu, Lida, Yang, Zhichao, Yan, Wentao, Dun, Yichao, Xue, Pengsheng, Xu, Peihua, Bose, Susmita, Bandyopadhyay, Amit
Format: Article
Language:English
Subjects:
3D printing
Mechanical properties
Metallic materials
Porosity defects
Porosity elimination
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[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