Development of a new powder-bed arc additive manufacturing approach for producing high entropy alloys

Simple item page
dc.contributor.authorDong, BSen_AU
dc.contributor.authorMuránsky, Oen_AU
dc.contributor.authorZhu, Hlen_AU
dc.contributor.authorMuránsky, Oen_AU
dc.contributor.authorWang, ZYen_AU
dc.contributor.authorReid, Men_AU
dc.contributor.authorLi, HJen_AU
dc.date.accessioned2024-03-01T04:18:16Zen_AU
dc.date.available2024-03-01T04:18:16Zen_AU
dc.date.issued2021-11-26en_AU
dc.date.statistics2023-04-26en_AU
dc.description.abstractHigh entropy alloys (HEAs) have gained significant attention over the past decade from both academic and industrial communities due to their unique design concept and promising properties. The manufacturing of this emerging material with desired properties remains challenging. Most of previous work utilized conventional vacuum arc melting and casting methods for producing HEAs. However, the disadvantage of typical casting microstructure, columnar dendrite and serious chemical segregation, causes serious deterioration to their mechanical properties. A new powder-bed arc additive manufacturing (PAAM) has been developed at the University of Wollongong for producing HEAs. This approach, with a high level of flexibility for controlling the forming process and the characteristic rapid solidification, enables the tailoring of the microstructure through the process control and the effective reduction of the chemical segregation in these compositionally complexed alloys. Additionally, compared with the laser and electron beam based additive manufacturing, PAAM is advantageous for higher production rate hence it is promising in industrial applications for producing bulk components in shorter period. The production of a eutectic AlCoCrFeNi2.1 HEA using this new PAAM approach will be presented to demonstrate its capability. The characterisation work shows that the produced AlCoCrFeNi2.1 samples have a lamellar microstructure consisting of the soft but ductile face-centered cubic (FCC) phase as well as the hard body-centered-cubic (BCC) phase. The material demonstrates a remarkable combination of excellent ultimate tensile strength (719 MPa) and ductility (elongation ~27%). The current work has demonstrated that the developed PAAM process is promising for producing HEA components with desired properties. © The Authorsen_AU
dc.identifier.citationDong, B., Wang, Z., Pan, Z., Muránsky, O., Zhu, H., Reid, M., & Li, H. (2021). Development of a new powder-bed arc additive manufacturing approach for producing high entropy alloys. Presentation to the ANSTO User Meeting, 24-26 November 2021, Online. Retrieved from: https://events01.synchrotron.org.au/event/146/contributions/4334/en_AU
dc.identifier.conferenceenddate2021-11-26en_AU
dc.identifier.conferencenameANSTO User Meetingen_AU
dc.identifier.conferenceplaceOnlineen_AU
dc.identifier.conferencestartdate2021-11-24en_AU
dc.identifier.urihttps://events01.synchrotron.org.au/event/146/contributions/4334/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15525en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectPowder metallurgyen_AU
dc.subjectAlloysen_AU
dc.subjectEntropyen_AU
dc.subjectPhysical propertiesen_AU
dc.subjectMaterialsen_AU
dc.subjectCastingen_AU
dc.subjectDendritesen_AU
dc.titleDevelopment of a new powder-bed arc additive manufacturing approach for producing high entropy alloysen_AU
dc.typeConference Presentationen_AU
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
OgrEWivv_926509-1.pdf
Size:
1.46 MB
Format:
Adobe Portable Document Format
Description:
Download
Thumbnail Image
Name:
contribution (9).pdf
Size:
358.51 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications