TY - JOUR
T1 - High strain-rate response of additively manufactured light metal alloys
AU - Alkhatib, Sami E.
AU - Sercombe, Timothy B.
N1 - Funding Information:
The authors would like to thank the Australian Government Research Training Program Scholarship from The University of Western Australia.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/5
Y1 - 2022/5
N2 - Understanding the high strain-rate response of materials is essential in applications including aerospace, automotive, and defence. Structures of these applications are often subjected to dynamic loadings of high strain rates and need to mitigate the impact by absorbing its energy. The advancement of additive manufacturing (AM) technologies has enabled the fabrication of structures in many industrial sectors. Many sectors now utilize AM to produce their parts to attain light weight, enhanced functionality, and part number reduction. Therefore, it is critical to characterize the mechanical properties of AM materials. Despite receiving a great deal of research under quasi-static conditions, the dynamic response of AM materials is still lacking. This paper reviews the recent studies on the high strain-rate response of AM light metal alloys. We mainly focus on the two most common AM light alloys, namely AlSi10Mg and Ti6Al4V. The paper starts by reviewing the main AM techniques and materials' high strain-rate testing methods. We then review the flow behaviour, deformation mechanisms of AlSi10Mg and Ti6Al4V under high strain rates and the effect of post-processing. Moreover, we present a comparison of the high strain-rate mechanical behaviour against conventionally manufactured alloys. The paper concludes with an outlook for future research and recommendations.
AB - Understanding the high strain-rate response of materials is essential in applications including aerospace, automotive, and defence. Structures of these applications are often subjected to dynamic loadings of high strain rates and need to mitigate the impact by absorbing its energy. The advancement of additive manufacturing (AM) technologies has enabled the fabrication of structures in many industrial sectors. Many sectors now utilize AM to produce their parts to attain light weight, enhanced functionality, and part number reduction. Therefore, it is critical to characterize the mechanical properties of AM materials. Despite receiving a great deal of research under quasi-static conditions, the dynamic response of AM materials is still lacking. This paper reviews the recent studies on the high strain-rate response of AM light metal alloys. We mainly focus on the two most common AM light alloys, namely AlSi10Mg and Ti6Al4V. The paper starts by reviewing the main AM techniques and materials' high strain-rate testing methods. We then review the flow behaviour, deformation mechanisms of AlSi10Mg and Ti6Al4V under high strain rates and the effect of post-processing. Moreover, we present a comparison of the high strain-rate mechanical behaviour against conventionally manufactured alloys. The paper concludes with an outlook for future research and recommendations.
KW - Additive manufacturing
KW - AlSi10Mg
KW - Dynamic loading
KW - High strain-rate
KW - Ti6Al4V
UR - http://www.scopus.com/inward/record.url?scp=85129510845&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2022.110664
DO - 10.1016/j.matdes.2022.110664
M3 - Review article
AN - SCOPUS:85129510845
SN - 0264-1275
VL - 217
JO - Materials and Design
JF - Materials and Design
M1 - 110664
ER -