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Development of Low Nickel Austenitic Stainless Steel for High-Temperature Gasoline Turbochargers
Author: Garrett’s contribution to this paper through Prashanth CS, Ragupathy Kannusamy, Philippe Renaud and Arthur Fischer.
A new low-nickel austenitic stainless steel has been developed for use in turbine housings of turbochargers for gasoline applications.
In this paper, you will learn more about the new steel, which is made with nitrogen that acts as a strong austenitic stabilizer and reduces the need for nickel. This makes the new steel more cost-effective than traditional high-nickel stainless steel. The new steel was developed using an integrated computational materials engineering (ICME) methodology, which combines computational and experimental techniques. It has been tested up to 1050°C gas temperature under severe thermal shock loading conditions and compared with existing high-nickel conventional steels. The results show that the new steel is a promising alternative solution providing both better performance and lower cost for high temperature turbocharger applications.
Publisher: Institution on Mechanical Engineers
Publication date: 16 – 17 May 2023, at the 15th International Conference on Turbochargers and Turbocharging, Twickenham Stadium, London
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