TY - JOUR
T1 - Ultrasonically assisted hot-wire arc additive manufacturing process of AA7075 metal matrix nanocomposite
AU - Wang, Tianzhao
AU - Kang, Jiarui
AU - Darnell, Mason
AU - Liu, Xun
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/3/5
Y1 - 2023/3/5
N2 - A newly developed ultrasonically assisted (UA) hot-wire wire arc additive manufacturing (HWAAM) process for TiB2 nanoparticle reinforced AA7075 metal matrix nanocomposite (MMNC) was thoroughly studied. The synergic effects of UA and hot-wire system were discussed along with process parameters. HWAAM samples showed reduced porosities and improved deposition rate compared to conventional WAAM, while UA-HWAAM further upgraded the process and showed improvements in several aspects: reduced porosities, better dispersion of nanoparticles, and uniform microstructure, as reflected in the more homogeneous hardness distribution, and enhanced mechanical properties. Lower travel speed shows more significant UA improvements based on the longer UA-melt interaction time.
AB - A newly developed ultrasonically assisted (UA) hot-wire wire arc additive manufacturing (HWAAM) process for TiB2 nanoparticle reinforced AA7075 metal matrix nanocomposite (MMNC) was thoroughly studied. The synergic effects of UA and hot-wire system were discussed along with process parameters. HWAAM samples showed reduced porosities and improved deposition rate compared to conventional WAAM, while UA-HWAAM further upgraded the process and showed improvements in several aspects: reduced porosities, better dispersion of nanoparticles, and uniform microstructure, as reflected in the more homogeneous hardness distribution, and enhanced mechanical properties. Lower travel speed shows more significant UA improvements based on the longer UA-melt interaction time.
KW - Hot-wire GTAW
KW - Metal matrix nanocomposite
KW - Power ultrasound
KW - Wire arc additive manufacturing
UR - http://www.scopus.com/inward/record.url?scp=85143490184&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2022.168298
DO - 10.1016/j.jallcom.2022.168298
M3 - Article
AN - SCOPUS:85143490184
SN - 0925-8388
VL - 936
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 168298
ER -