TY - JOUR
T1 - Viability of WAAM for fabrication/repair of SS316
T2 - Fatigue crack growth behavior for varied notch locations in the vicinity of WAAM-substrate interface
AU - Nakrani, Jignesh
AU - Mishra, Neeraj K.
AU - Ajay, V.
AU - Yan, Wenyi
AU - Shrivastava, Amber
N1 - Funding Information:
The authors acknowledge the financial support provided by the IITB-Monash Research Academy and the Department of Biotechnology, New Delhi. Furthermore, the authors extend their acknowledgment to the Advanced Manufacturing Processes Lab, Machine Tool Lab, Advanced Mechanical Testing Facility, and MMMF lab at the Indian Institute of Technology Bombay for specimen preparation, and characterization.
Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/10
Y1 - 2024/10
N2 - The tensile and fatigue crack growth rate (FCGR) behavior of SS316L wire deposited on SS316 substrate using wire arc additive manufacturing (WAAM) was studied to assess its potential for fabrication and repair applications. Five initial notch locations near the WAAM-substrate interface were considered for FCGR. Cracks in the deposition direction propagated towards the WAAM region. FCGR of cracks in the build direction accelerated in the WAAM region due to its favorable columnar grain orientation. Overall, FCGR behavior near the WAAM-substrate interface is comparable with wrought alloy, suggesting WAAM's viability for SS316 fabrication and repair, with satisfactory structural integrity observed in tensile and FCGR behavior.
AB - The tensile and fatigue crack growth rate (FCGR) behavior of SS316L wire deposited on SS316 substrate using wire arc additive manufacturing (WAAM) was studied to assess its potential for fabrication and repair applications. Five initial notch locations near the WAAM-substrate interface were considered for FCGR. Cracks in the deposition direction propagated towards the WAAM region. FCGR of cracks in the build direction accelerated in the WAAM region due to its favorable columnar grain orientation. Overall, FCGR behavior near the WAAM-substrate interface is comparable with wrought alloy, suggesting WAAM's viability for SS316 fabrication and repair, with satisfactory structural integrity observed in tensile and FCGR behavior.
KW - Fatigue crack growth behaviour
KW - Stainless steel
KW - Substrate-WAAM interface
KW - Wire arc additive manufacturing
UR - http://www.scopus.com/inward/record.url?scp=85196011702&partnerID=8YFLogxK
U2 - 10.1016/j.tafmec.2024.104527
DO - 10.1016/j.tafmec.2024.104527
M3 - Article
AN - SCOPUS:85196011702
SN - 0167-8442
VL - 133
JO - Theoretical and Applied Fracture Mechanics
JF - Theoretical and Applied Fracture Mechanics
IS - Part A
M1 - 104527
ER -