タイトルまたは説明

The vacuum-grade degassed chromium billet is based on the secondary processing of metallic chromium, which has a lower gas content than the raw material metallic chromium. It is suitable for the preparation of high-end superalloys and can effectively improve its comprehensive high-temperature resistance.
Chromium is one of the main elements of high-temperature alloys, accounting for ***0%. The gas in high-temperature alloys (DZ**5L, K**7G and K**8), among which DZ**5L, K**7G body elements and impurities are mostly derived from metallic chromium raw materials.
Three kinds of master alloy ingots are prepared by vacuum-grade high-purity degassed chromium billet (the nitrogen content of the two master alloys is controlled at 3ppm, and the nitrogen content of K**8 alloy is controlled at 5ppm, reaching the international advanced level. The experimental results show that the vacuum level is high Pure degassed chromium billet is an effective raw material for preparing high-end low-nitrogen superalloys.