TY - GEN
T1 - Ultrasonic vibration-assisted laser directed energy deposition of B4C-TI composite
T2 - ASME 2021 16th International Manufacturing Science and Engineering Conference, MSEC 2021
AU - Li, Yunze
AU - Zhang, Dongzhe
AU - Cong, Weilong
N1 - Publisher Copyright:
Copyright © 2021 by ASME
PY - 2021
Y1 - 2021
N2 - Compared with pure titanium, ceramic reinforced titanium matrix composites (TMCs) have the advantages of higher microhardness, higher wear resistance, and better load endurance properties, which enable their further applications under severe friction and cyclic loading conditions. B4C-Ti composite, as a kind of TMCs, has been fabricated by laser directed energy deposition (DED) technology. However, there are still some problems needed to be solved. First, the B4C particles are not fully melted. It suppresses the reactions between B4C and titanium and reduced the generation of TiB and TiC during the fabrication, which deteriorates the hardness of the B4C-Ti composite. Second, the reinforcement materials are not evenly distributed in the titanium matrix, which damages the performance of the B4C-Ti composite. In this study, B4C-Ti composite parts are fabricated by the ultrasonic vibration-assisted laser DED process. The effects of laser power and ultrasonic vibration on the phase compositions, microstructure, and hardness are investigated.
AB - Compared with pure titanium, ceramic reinforced titanium matrix composites (TMCs) have the advantages of higher microhardness, higher wear resistance, and better load endurance properties, which enable their further applications under severe friction and cyclic loading conditions. B4C-Ti composite, as a kind of TMCs, has been fabricated by laser directed energy deposition (DED) technology. However, there are still some problems needed to be solved. First, the B4C particles are not fully melted. It suppresses the reactions between B4C and titanium and reduced the generation of TiB and TiC during the fabrication, which deteriorates the hardness of the B4C-Ti composite. Second, the reinforcement materials are not evenly distributed in the titanium matrix, which damages the performance of the B4C-Ti composite. In this study, B4C-Ti composite parts are fabricated by the ultrasonic vibration-assisted laser DED process. The effects of laser power and ultrasonic vibration on the phase compositions, microstructure, and hardness are investigated.
KW - B4C-Ti composite
KW - Laser directed energy deposition
KW - Laser power
KW - Ultrasonic vibration
UR - http://www.scopus.com/inward/record.url?scp=85112564410&partnerID=8YFLogxK
U2 - 10.1115/MSEC2021-60388
DO - 10.1115/MSEC2021-60388
M3 - Conference contribution
AN - SCOPUS:85112564410
T3 - Proceedings of the ASME 2021 16th International Manufacturing Science and Engineering Conference, MSEC 2021
BT - Manufacturing Processes; Manufacturing Systems; Nano/Micro/Meso Manufacturing; Quality and Reliability
PB - American Society of Mechanical Engineers
Y2 - 21 June 2021 through 25 June 2021
ER -