摘要
介绍了国内外650℃等级超超临界汽轮机高温材料的最新研究情况。通过分析650℃等级材料的发展过程、汽轮关键部件对材料性能的要求等,给出了650℃等级超超临界汽轮机关键部件选材,并对存在的问题进行了分析讨论,表明大型铸锻件材料研究及相关工艺性能研究是650℃机组超超临界汽轮机关键部件选材的核心。
The present study for high temperature materials of 650 ℃ USC steam turnbines is described. By analyzing the development process of materials used at 650 ℃ condition and the property requirements for critical parts of steam turbines, the selection of the materials for critical parts is proposed, then, the existing problems are discussed. It is concluded that the research for heavy forgings and castings materials as well as related process property is the key issues on the materials for critical parts of 650 ℃ USC steam turbines.
出处
《热力透平》
2016年第1期51-56,共6页
Thermal Turbine
关键词
650℃等级汽轮机
高温材料
超超临界
热膨胀系数
650 ℃class steam turbine
high temperature materials
USC
thermal expansion coefficient
