TiAl合金涡轮的设计及工程化应用研究进展  

Research progress on design and engineering application of TiAl alloy turbine

作　　者：刘烨 王增全 程江华 闫瑞乾 何洪 朱春雷[2] LIU Ye;WANG Zeng-quan;CHEN Jiang-hua;YAN Rui-qian;HE Hong;ZHU Chun-lei(China North Engine Research Institute,Tianjin 300400,China;High Temperature Institute,Central Iron and Steel Research Institute,Beijing 100081,China)

机构地区：[1]中国北方发动机研究所,天津300400 [2]钢铁研究总院高温材料研究所,北京100081

出　　处：《重型机械》2022年第5期1-6,共6页Heavy Machinery

摘　　要：采用轻质TiAl合金代替较重的镍基高温合金制作车辆柴油机增压器涡轮,是改善车辆柴油机加速响应性、实现轻量化的有效技术途径。本文围绕降低增压器涡轮转动惯量的设计需求,总结了TiAl合金性能与涡轮设计的关联性、涡轮制造及连接技术水平以及应用考核试验情况;指出国内现有TiAl合金涡轮设计、制造技术已经达到工程化应用水平,但尚需在铸造质量稳定性、生产周期以及专用验收标准等方面继续开展工作。Using lightweight TiAl alloys instead of heavy nickel-based superalloys to make vehicle diesel engine turbochargers is an effective technical way to improve the acceleration response of vehicle diesel engines and achieve lightweight.Focusing on the design requirements of reducing the rotational inertia of turbocharger turbines,this paper summarizes the correlation between the performance of TiAl alloys and turbine design,the technical level of turbine manufacturing and connection,and the application test results.Pointing out that the existing domestic TiAl alloy turbine design and manufacturing technology has reached the engineering application level,but the work still needs to be continued in the aspects of casting quality stability,production cycle and special acceptance standards.

关 键 词：TIAL合金 增压器涡轮 比强度 自振频率 铸造 连接 

分 类 号：TG166.5[金属学及工艺—热处理]