High Temperature Life Prediction of TiAl Turbine Blade &nbsp;for Vehicle Radial Turbocharger

WANG Zheng1; LI Sheng2; YANG Ce3; ZHANG Wei4; LIU Jilin4

doi:10.3969/j.issn.1001-2222.2017.06.015

Vehicle Engine >

2017 , Vol. 0 >Issue 6: 75 - 78

DOI: https://doi.org/10.3969/j.issn.1001-2222.2017.06.015

High Temperature Life Prediction of TiAl Turbine Blade for Vehicle Radial Turbocharger

WANG Zheng1 ,
LI Sheng2 ,
YANG Ce3 ,
ZHANG Wei4 ,
LIU Jilin4

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(1.Key Laboratory of Diesel Engine Turbocharging Technology,China North Engine Research Institute(Tianjin),Tianjin 300400,China;
2.High Temperature Materials Division,China lron and Steel Research Institute Group,Beijing 100081,China;
3.Institute of product development,Shanxi Diesel Engine Co.,Ltd.,Datong 037036,China;
4.The Military Representative Office of PLA in 616 Factory,Datong 037036,China)

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Abstract

The spatial distribution characteristics of load and stress of turbine blade for the TiAl turbine of vehicle turbocharger were analyzed and the turbine blade fracture caused by high temperature was determined as one of the potential turbine failure modes. Then the high temperature rupture property of TiAl turbine was studied through test and the mathematical relationship between the high temperature life and the stress and temperature parameters was built. Based on the endurance test profile of vehicle engine, the high temperature life prediction model of TiAl turbine was further developed and the high temperature rupture life of TiAl turbine was predicted with the model. The result shows that the high temperature life of TiAl turbine is longer than the set service life, which can meet the application demands.

Key words： TiAl alloy; turbine; turbine blade; high temperature characteristic; life prediction

Cite this article

WANG Zheng1 , LI Sheng2 , YANG Ce3 , ZHANG Wei4 , LIU Jilin4 . High Temperature Life Prediction of TiAl Turbine Blade for Vehicle Radial Turbocharger[J]. Vehicle Engine, 2017 , 0(6) : 75 -78 . DOI: 10.3969/j.issn.1001-2222.2017.06.015

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