TY - JOUR
T1 - Thermal aging effect on fracture toughness of GTAW/SMAW of 316L stainless steel
T2 - experiments and applicability of existing CASS models
AU - Youn, Gyo Geun
AU - Kim, Yun Jae
AU - Miura, Yasufumi
N1 - Funding Information:
This research was funded by National Research Foundation of Korea ( NRF ) supported by Ministry of Science and ICT (NRF-2018M2A8A4084016, NRF-2019M2D2A2048296).
Publisher Copyright:
© 2020
PY - 2021/4
Y1 - 2021/4
N2 - This paper presents thermal aging effect on fracture toughness properties of GTAW (gas tungsten arc welding) and SMAW (shielded metal arc welding) of 316L stainless steels, and investigates the applicability of the existing three thermal aging models for CASS (cast stainless steels). Thermal aging was carried out at 350 °C for up to 15,000h and at 400 °C up to 8,000h. After aging, tensile and fracture toughness tests using 0.5T C(T) specimens were carried out at room temperature and at 288 °C. Comparing with the predictions using three (ANL, French and H3T) thermal aging models for CASS show that the predictions can be very non-conservative at operating temperature, and thus that the existing thermal aging models for CASS cannot be applied to the welded stainless steels.
AB - This paper presents thermal aging effect on fracture toughness properties of GTAW (gas tungsten arc welding) and SMAW (shielded metal arc welding) of 316L stainless steels, and investigates the applicability of the existing three thermal aging models for CASS (cast stainless steels). Thermal aging was carried out at 350 °C for up to 15,000h and at 400 °C up to 8,000h. After aging, tensile and fracture toughness tests using 0.5T C(T) specimens were carried out at room temperature and at 288 °C. Comparing with the predictions using three (ANL, French and H3T) thermal aging models for CASS show that the predictions can be very non-conservative at operating temperature, and thus that the existing thermal aging models for CASS cannot be applied to the welded stainless steels.
KW - Applicability of thermal aging models
KW - GTAW 316L stainless Steel
KW - SMAW 316
KW - Thermal aging effect on fracture toughness
UR - http://www.scopus.com/inward/record.url?scp=85092894762&partnerID=8YFLogxK
U2 - 10.1016/j.net.2020.10.007
DO - 10.1016/j.net.2020.10.007
M3 - Article
AN - SCOPUS:85092894762
SN - 1738-5733
VL - 53
SP - 1357
EP - 1368
JO - Nuclear Engineering and Technology
JF - Nuclear Engineering and Technology
IS - 4
ER -