Investigation of application-specific phenomena to improve the lifetime assessment for turbine housings of turbochargers

Laengler, Frank; Mao, Tongsheng; Scholz, Alfred

doi:10.1016/j.proeng.2011.04.194

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…In turbocharger system, the most crucial component of is the turbine. Turbocharger turbine is important as it recovers the exhaust gases from the combustion chamber and convert it to kinetic energy for charging (Laengler et al, 2011;Yang et al, 2015). For decades, ceramic materials have been an excellent Thermal Barrier Coating (TBC) in automotive industry.…”

Section: A Ceramic Application As Tbc On Turbocharger Turbinementioning

confidence: 99%

Coating Characterizations and Evaluation of Ceramic Metal Mixture Slurry Based Thermal Barrier Coating for Automotive Turbocharger Turbine Application

noor¹,

Nadrah²,

UDAY³

2018

Seventh International Conference on Advances in Mechanical and Robotics Engineering AMRE 2018

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Turbocharging the internal combustion engine (ICE) is to increase the power density of the engine or known as the downsizing of the engine. Large amount of heat energy is wasted through the exhaust manifold, coolant, convective and radiate heat transfer. The amount of heat loss generated to the surrounding by operating turbine volute will affect the service life of some automotive components. The current material tungsten used for heavy duty automotive turbine volute casing is heavier and costly if to compare to a new suggested material nickel with thermal barrier ceramic coating as an alternative. Thermal barrier coating is an alternative method for insulating cheaper and lighter engineering components operating in extreme temperature condition, there exist different coating techniques, but high installation cost and high technical skills requirement have restricted their widespread acceptance. The need of simple and cost effective thermal barrier coating has become necessary for the alternative coating method. In this study, slurry based coating method was adopted and the Ni/Basalt slurry mixture was coated by using an automatic film applicator in order ensures a uniform thickness of the coating. Appropriate amount of nickel powder and basalt fibre were mixed to produce the slurry mixture. A composition of 70wt% nickel powder and 30wt% basalt fibre was used in depositing the thermal barrier coating layer on nickel substrate. The coating microstructures were analyzed and evaluated by using Optical Microscopy (OM) and Scanning Electron Microscopy (SEM). The coatings were also examined with EDX line (Energy Dispersive X-ray Spectroscopy) in order to determine the phases formed during the coating process. The mechanical properties including adhesion strength and Vickers micro hardness were measured. The results shown that the Ni/Basalt slurry based coating was suitable and appropriate for the coating process of the substrate as an application in the inner passage of the casing.

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Section: A Ceramic Application As Tbc On Turbocharger Turbinementioning

confidence: 99%

Coating Characterizations and Evaluation of Ceramic Metal Mixture Slurry Based Thermal Barrier Coating for Automotive Turbocharger Turbine Application

noor¹,

Nadrah²,

UDAY³

2018

Seventh International Conference on Advances in Mechanical and Robotics Engineering AMRE 2018

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“…Austenitic ductile iron Ni-resist Type D-5S, also known as cast iron, is widely used for exhaust manifolds and turbocharger housings due to its high strength and high oxidation resistance at elevated temperatures. 1–3 Both elastoplastic and viscoplastic material properties play a very important role when these components are exposed to extensive cyclic thermomechanical loads. 4–7 Material properties are most commonly represented by a model with a certain number of material parameters, whereby the parameters are usually pre-extracted from raw test data and then fed into an appropriate model.…”

Section: Introductionmentioning

confidence: 99%

“…Simulations were partly performed by Abaqus 6.10 and partly by self-developed software for thermomechanical damage calculation (TLAE) which follows the equations given in section ‘Material modelling and damage calculation’. Because a turbocharger is usually loaded with a TMF cycle, 1–3 one of the four available TMF cycles has been chosen for simulation. The material parameters had to be set so as to optimally describe this cycle, and the search for the optimal set of material parameters with different approaches is highlighted in this article.…”

Section: Introductionmentioning

confidence: 99%

Identification of material parameters from low cycle fatigue, thermomechanical fatigue and creep tests for damage prediction of thermomechanically loaded Ni-resist Type D-5S

Šeruga

Gosar

Längler

et al. 2014

The Journal of Strain Analysis for Engineering Design

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An experimental and numerical study of the mechanical behaviour of cast iron during a thermomechanical fatigue is presented here. The cast iron specimens under investigation were made of austenitic ductile iron Ni-resist Type D-5S which is mostly used for exhaust manifolds and turbocharger housings. Elastoplastic and viscoplastic material parameters were determined from low cycle fatigue tests at different strain rates and thermomechanical fatigue tests, respectively, and then compared to material parameters previously gained by a combination of low cycle fatigue tests at a single strain rate and creep tests. These material parameters were then used to perform thermal and structural finite element analyses from which fatigue and creep damages on the cast iron were calculated. While damage predictions calculated here vary, they are comparable to experimental observations.

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Cyclic plasticity models and fatigue criteria for exhaust manifold life assessment in the context of limited material data available

Kostal

Šebek

Petruška

et al. 2021

Materials at High Temperatures

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Investigation of application-specific phenomena to improve the lifetime assessment for turbine housings of turbochargers

Cited by 3 publications

References 8 publications

Coating Characterizations and Evaluation of Ceramic Metal Mixture Slurry Based Thermal Barrier Coating for Automotive Turbocharger Turbine Application

Coating Characterizations and Evaluation of Ceramic Metal Mixture Slurry Based Thermal Barrier Coating for Automotive Turbocharger Turbine Application

Identification of material parameters from low cycle fatigue, thermomechanical fatigue and creep tests for damage prediction of thermomechanically loaded Ni-resist Type D-5S

Cyclic plasticity models and fatigue criteria for exhaust manifold life assessment in the context of limited material data available

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