Peng Yan

TL;DR: In this article, the evolution of microstructures and high-temperature strength of 9Cr-3W-3Co martensitic heat resistant steel after aging at 650°C and 700°C for different time durations have been experimentally investigated using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), field emission transmission electron microscope (FETEM), and post-aged tensile tests.

TL;DR: In this article, the authors investigated the structural and room temperature strength of 9Cr-3W-3Co martensitic heat resistant steel after normalizing at 900-1200°C for 1 1/h and then tempering at 750-1/h for 1/4h.

TL;DR: Toughness of G115 martensitic heat resistant steel after heat treatment and aging for different time at 650 ÂC was tested at room temperature as mentioned in this paper, and the results showed that the absorbed energy of G 115 steel can reach 115 ÂJ after a heat treatment, and then keeps almost stable with further increasing aging time to 8000 Â

TL;DR: In this paper, a steam-temperature ultra-supercritical thermal power unit and a preparation method of heat resistant steel are described. And the steel comprises the following chemical compositions by weight percentage: 0.06-0.10 percent of carbon, 0.30-1.5 percent of vanadium, 1.5-3.8 percent of manganese, not more than 0.004 percent of phosphorous, 8.0-9.0 percent of chromium, 2.5