TY - JOUR
T1 - Microstructure and corrosion resistance of stainless steel produced by bypass coupling twin-wire indirect arc additive manufacturing
AU - Wu, Dongting
AU - An, Qi
AU - Du, Fuxin
AU - Matsuda, Kenji
AU - Tang, Yingwen
AU - Zou, Yong
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature.
PY - 2022/3
Y1 - 2022/3
N2 - This study investigates the application of bypass coupling twin-wire indirect arc welding (BC-TWIAW) in arc additive manufacturing of 18–8 stainless steel. It is found that the droplet transfer changed from short circuit mode to stable spray mode with the welding current rising. Droplet transfer was the most stable when welding current was 200 A. Compared with the conventional MIG welding arc additive manufacturing, the efficiency of BC-TWIAW additive manufacturing can be increased by more than 30%. Electrochemical tests show that the BC-TWIAW overlay has a lower reactivation rate, higher charge transfer resistance, and lower carrier concentration, indicating that the overlay has better resistance to intergranular corrosion and pitting corrosion.
AB - This study investigates the application of bypass coupling twin-wire indirect arc welding (BC-TWIAW) in arc additive manufacturing of 18–8 stainless steel. It is found that the droplet transfer changed from short circuit mode to stable spray mode with the welding current rising. Droplet transfer was the most stable when welding current was 200 A. Compared with the conventional MIG welding arc additive manufacturing, the efficiency of BC-TWIAW additive manufacturing can be increased by more than 30%. Electrochemical tests show that the BC-TWIAW overlay has a lower reactivation rate, higher charge transfer resistance, and lower carrier concentration, indicating that the overlay has better resistance to intergranular corrosion and pitting corrosion.
KW - Additive manufacturing
KW - Bypass coupling twin-wire indirect arc welding
KW - Droplet transfer
KW - Intergranular corrosion resistance
KW - Pitting corrosion resistance
UR - http://www.scopus.com/inward/record.url?scp=85120425148&partnerID=8YFLogxK
U2 - 10.1007/s00170-021-08343-1
DO - 10.1007/s00170-021-08343-1
M3 - 学術論文
AN - SCOPUS:85120425148
SN - 0268-3768
VL - 119
SP - 2159
EP - 2172
JO - International Journal of Advanced Manufacturing Technology
JF - International Journal of Advanced Manufacturing Technology
IS - 3-4
ER -