汽轮机大型锻件脆性转变温度的研究  

Study on Brittle Transition Temperature of Large Forgings of Steam Turbine

作　　者：李永安 

机构地区：[1]中国长江动力集团有限公司,武汉430205

出　　处：《汽轮机技术》2016年第6期475-478,共4页Turbine Technology

摘　　要：脆性转变温度是大型锻件设计比较重视的性能指标之一,它直接影响大型锻件其它的性能指标。通过对国内汽轮机、工业汽轮机、汽轮发电机整锻转子体、主轴、复合转子锻件脆性转变温度具体参数的分析研究,了解电站设备大型锻件的脆性转变温度参数的使用现状,确定锻件的脆性转变温度理想的参数范围。找出电站设备大型锻件不同材料、不同强度等级脆性转变温度存在的不足或需要改进的地方。希望能够给电站设备大型锻件设计、锻件厂锻件的工艺研究、改进提供一定的技术支持。Brittle transition temperature is one of the largest forging design more emphasis on performance indicators. Itdirectly affects the performance of other large forgings. Through domestic steam turbine industrial steam turbines, SteamTurbine Generator rotor forging the whole body, spindle, composite rotor forging brittle transition temperature of the specificparameters of analysis to understand the power station equipment, large forgings brittle transition temperature parametersusing conditions to determine the brittle transition forgings ideal temperature parameter ranges. Identify different materials,different intensity levels less brittle transition temperature or the presence of heavy forgings for improvement power plantequipment. Hope to be able to heavy forgings for power plant equipment design, research and technology forging plantForging and improved to provide some technical support.

关 键 词：汽轮机 脆性 韧性 转变温度 断裂形貌 

分 类 号：TG142.1[一般工业技术—材料科学与工程]