Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships
Tungsten (W) as a structural component has grown roots in many special applications owing to its radiation-shielding capabilities and its properties at elevated temperatures. The high ductile-brittle transition temperature (DBTT) and the very high melting point of tungsten however have limited its p...
| Prif Awduron: | , , |
|---|---|
| Fformat: | Erthygl |
| Iaith: | English |
| Cyhoeddwyd: |
MDPI AG
2022-02-01
|
| Cyfres: | Metals |
| Pynciau: | |
| Mynediad Ar-lein: | https://www.mdpi.com/2075-4701/12/2/274 |
| _version_ | 1827653875134365696 |
|---|---|
| author | Mahmoud S. Seyam Philip Koshy Mohamed A. Elbestawi |
| author_facet | Mahmoud S. Seyam Philip Koshy Mohamed A. Elbestawi |
| author_sort | Mahmoud S. Seyam |
| collection | DOAJ |
| description | Tungsten (W) as a structural component has grown roots in many special applications owing to its radiation-shielding capabilities and its properties at elevated temperatures. The high ductile-brittle transition temperature (DBTT) and the very high melting point of tungsten however have limited its processability to certain technologies such as powder metallurgy. Laser powder bed fusion (LPBF) has been introduced in recent years as an alternative for manufacturing tungsten parts to overcome the design limitations posed by powder metallurgy technology. A review of the literature shows significant improvements in the quality of tungsten components produced by LPBF, implying a strong potential for manufacturing tungsten with this technology and a need for further research on this subject. This review paper presents the current state-of-the-art in LPBF of unalloyed tungsten, with a focus on the effect of process parameters on the developed structure/properties and identifies current knowledge gaps. |
| first_indexed | 2024-03-09T21:26:44Z |
| format | Article |
| id | doaj.art-934dab9e5bf44c76b3a9f3348a7d0718 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T21:26:44Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-934dab9e5bf44c76b3a9f3348a7d07182023-11-23T21:07:45ZengMDPI AGMetals2075-47012022-02-0112227410.3390/met12020274Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties RelationshipsMahmoud S. Seyam0Philip Koshy1Mohamed A. Elbestawi2Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, CanadaDepartment of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, CanadaDepartment of Mechanical Engineering, McMaster University, Hamilton, ON L8S 4L7, CanadaTungsten (W) as a structural component has grown roots in many special applications owing to its radiation-shielding capabilities and its properties at elevated temperatures. The high ductile-brittle transition temperature (DBTT) and the very high melting point of tungsten however have limited its processability to certain technologies such as powder metallurgy. Laser powder bed fusion (LPBF) has been introduced in recent years as an alternative for manufacturing tungsten parts to overcome the design limitations posed by powder metallurgy technology. A review of the literature shows significant improvements in the quality of tungsten components produced by LPBF, implying a strong potential for manufacturing tungsten with this technology and a need for further research on this subject. This review paper presents the current state-of-the-art in LPBF of unalloyed tungsten, with a focus on the effect of process parameters on the developed structure/properties and identifies current knowledge gaps.https://www.mdpi.com/2075-4701/12/2/274additive manufacturingballingcrackingmicrostructureporositypowder bed fusion |
| spellingShingle | Mahmoud S. Seyam Philip Koshy Mohamed A. Elbestawi Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships Metals additive manufacturing balling cracking microstructure porosity powder bed fusion |
| title | Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships |
| title_full | Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships |
| title_fullStr | Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships |
| title_full_unstemmed | Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships |
| title_short | Laser Powder Bed Fusion of Unalloyed Tungsten: A Review of Process, Structure, and Properties Relationships |
| title_sort | laser powder bed fusion of unalloyed tungsten a review of process structure and properties relationships |
| topic | additive manufacturing balling cracking microstructure porosity powder bed fusion |
| url | https://www.mdpi.com/2075-4701/12/2/274 |
| work_keys_str_mv | AT mahmoudsseyam laserpowderbedfusionofunalloyedtungstenareviewofprocessstructureandpropertiesrelationships AT philipkoshy laserpowderbedfusionofunalloyedtungstenareviewofprocessstructureandpropertiesrelationships AT mohamedaelbestawi laserpowderbedfusionofunalloyedtungstenareviewofprocessstructureandpropertiesrelationships |