TY - JOUR
T1 - Creep behaviors of astm a36 welded joints
AU - Preedawiphat, Pavaret
AU - Mahayotsanun, Numpon
AU - Sa-Ngoen, Keerati
AU - Noipitak, Mai
AU - Tuengsook, Pongsak
AU - Sucharitpwatskul, Sedthawatt
AU - Dohda, Kuniaki
N1 - Funding Information:
This research was funded by the Thailand Research Fund (TRF), grant number PHD5910086. The authors would like to acknowledge the supports of LPN Metallurgical Research Center; Department of Mechanical Engineering, Faculty of Engineering, Khon Kaen University; King Mongkut’s University of Technology Thonburi; National Metal and Materials Technology Center (MTEC); and Department of Mechanical Engineering, Northwestern University.
Funding Information:
This research was funded by the Thailand Research Fund (TRF), grant number PHD5910086. The authors would like to acknowledge the supports of LPN Metallurgical Research Center; Department of Mechanical Engineering, Faculty of Engineering, Khon Kaen University; King Mongkut?s University of Technology Thonburi; National Metal and Materials Technology Center (MTEC); and Department of Mechanical Engineering, Northwestern University.
Publisher Copyright:
© 2021, Paulus Editora. All rights reserved.
PY - 2021
Y1 - 2021
N2 - This research work aimed to observe the creep behaviors of the ASTM A36 welded joints. The microstructure and hardness of the base zone (BZ), heat affected zone (HAZ), and weld fusion zone (WFZ) were measured. Afterward, the residual stresses on the welded plate were observed to determine any lead to fatigue failure. The hot tensile tests were then performed to investigate the welded specimens' creep behaviors at varied strain rates and temperatures. The power-law model was applied to describe the creep behaviors at each testing condition. Finally, the scanning electron microscopic (SEM) images of the tested specimens were observed to identify breakage causes. The creep results showed that the weakest locations were found in the base (A36) zones. The areas prone to ductile fracture was the base zones close to HAZ.
AB - This research work aimed to observe the creep behaviors of the ASTM A36 welded joints. The microstructure and hardness of the base zone (BZ), heat affected zone (HAZ), and weld fusion zone (WFZ) were measured. Afterward, the residual stresses on the welded plate were observed to determine any lead to fatigue failure. The hot tensile tests were then performed to investigate the welded specimens' creep behaviors at varied strain rates and temperatures. The power-law model was applied to describe the creep behaviors at each testing condition. Finally, the scanning electron microscopic (SEM) images of the tested specimens were observed to identify breakage causes. The creep results showed that the weakest locations were found in the base (A36) zones. The areas prone to ductile fracture was the base zones close to HAZ.
KW - ASTM A36
KW - Creep
KW - Hot tensile test
KW - Weld
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U2 - 10.14456/easr.2021.47
DO - 10.14456/easr.2021.47
M3 - Article
AN - SCOPUS:85108997844
SN - 2539-6161
VL - 48
SP - 446
EP - 455
JO - Engineering and Applied Science Research
JF - Engineering and Applied Science Research
IS - 4
ER -