Effect of Ultra Fast Cooling Coiling Temperature on Microstructures and Properties of X80 Pipeline Steel

5th Annual International Conference on Material Science and Engineering

Feng, Zhou^1 ; Liejun, Li^1 ; Jixiang, Gao^2 ; Haibo, Sun^3 ; Zhengwu, Peng^1

South China University of Technology, China^1

Guangdong Polytechnic Normal University, China^2

Foshan University, China^3

关键词: Coiling temperature;    Energy dispersive spectrometers;    Microstructures and properties;    Minimum value;    Scanning and transmission electron microscopy;    Ultra-fast cooling;    X80 pipeline steels;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/275/1/012037/pdf
DOI  :  10.1088/1757-899X/275/1/012037

来源: IOP

【 摘 要 】

Effect of ultra fast cooling coiling temperature on microstructures and properties of X80 pipeline steel was studied adopting the detection means of energy dispersive spectrometer, scanning and transmission electron microscopy. Result shows that the toughness increases with the increasing of ultra fast cooling coiling temperature. The yield strength decreases firstly and then increases with the increasing of ultra fast cooling coiling temperature. The yield strength reaches the minimum value at the temperature of around 350 °C.