Dynamic Continuous Cooling Transformation Behavior of A Novel Cu-bearing Pipeline Steel

Mitigation of microbial corrosion by Cu addition in X65 pipeline steel in presence of Pseudomonas aeruginosa

“…Firstly, the experimental steels were melted in a 200 kg vacuum induction melting furnace, then the steel ingots were forged into blocks of 90 mm × 90 mm × 400 mm and austenitized at 1150 ℃ for 2 h. Finally, these blocks were hot rolled into 12 mm thick from the temperature of 1120 to 830 o C, then a fast cooling was applied to simulate the actual production process. To obtain the best antibacterial activity, the as-rolled plate was aged at 600 o C for 2 h [29]. The microstructures of steels were observed on a Zeiss LSM700 metallographic light microscope (LM).…”

Effect of Cu Alloying on Strain Capacity of Cu-bearing Pipeline Steels

“…The steel ingots were forged into blocks of 70 mm × 70 mm × 80 mm and then austenitized at 1 050°C for 2 h. These blocks were hot rolled into plates about 9 mm thick under a thermo-mechanical controlled processing (TMCP) scheme described in Table 2. 20,21) The microstructures of experimental materials have been reported elsewhere. 13) To study the influence of the existence forms of Cu in steels on the strain capacity, some as-rolled steels were aged at 500°C for 1 hour.…”

Effect of Cu Addition in Pipeline Steels on Microstructure, Mechanical Properties and Microbiologically Influenced Corrosion

“…Firstly, the steel ingots were forged into blocks of 70 mm 9 70 mm 9 80 mm and then austenitized at 1050°C for 2 h. Then, these blocks were hotrolled into plates about 9 mm thick under a thermomechanical-controlled processing (TMCP) scheme described in Table 2. After final rolling, the fast cooling rate was achieved by water spray, which was based on the measurement of continuous cooling transformation (CCT) diagram obtained on a Gleeble-3800 hot simulator [15].…”