TY - JOUR
T1 - The effect of friction welding on the mechanical properties and corrosion fatigue resistance of titanium alloy drill pipe
AU - Mou, Yisheng
AU - Lian, Zhanghua
AU - Li, Wei
AU - Zhong, Xiankang
AU - Li, Jiuyi
AU - He, Yuantai
AU - Cao, Jinchao
AU - Eliaz, Noam
N1 - Publisher Copyright: © 2021 John Wiley & Sons, Ltd.
PY - 2022/2
Y1 - 2022/2
N2 - Titanium alloys are the best candidates to replace steels for drill pipes in horizontal wells. However, friction welding (FW) may significantly change the properties of titanium alloy drill pipes. In this work, the microstructure, tensile and impact mechanical properties, and corrosion fatigue performance of the FW zone were compared with those of the base alloy. The results show that the base material is mainly composed of equiaxed globular α (hcp)-Ti, while the acicular α + β (bcc)-Ti is dominant in the FW zone. Due to these differences in microstructure, the FW zone has higher strength but lower stiffness and toughness than the base alloy. In addition, the fatigue performance and corrosion resistance of the material decrease in drilling fluid. These results indicate that FW zones in titanium alloy drill pipes might be the weakest region where crack, fracture, and corrosion are more likely to occur.
AB - Titanium alloys are the best candidates to replace steels for drill pipes in horizontal wells. However, friction welding (FW) may significantly change the properties of titanium alloy drill pipes. In this work, the microstructure, tensile and impact mechanical properties, and corrosion fatigue performance of the FW zone were compared with those of the base alloy. The results show that the base material is mainly composed of equiaxed globular α (hcp)-Ti, while the acicular α + β (bcc)-Ti is dominant in the FW zone. Due to these differences in microstructure, the FW zone has higher strength but lower stiffness and toughness than the base alloy. In addition, the fatigue performance and corrosion resistance of the material decrease in drilling fluid. These results indicate that FW zones in titanium alloy drill pipes might be the weakest region where crack, fracture, and corrosion are more likely to occur.
UR - http://www.scopus.com/inward/record.url?scp=85118368734&partnerID=8YFLogxK
U2 - https://doi.org/10.1111/ffe.13609
DO - https://doi.org/10.1111/ffe.13609
M3 - مقالة
SN - 8756-758X
VL - 45
SP - 466
EP - 481
JO - Fatigue and Fracture of Engineering Materials and Structures
JF - Fatigue and Fracture of Engineering Materials and Structures
IS - 2
ER -