Print Email Facebook Twitter Optimization of microstructure and properties of high strength spring steel Title Optimization of microstructure and properties of high strength spring steel Author Choi, S. Contributor Van der Zwaag, S. (promotor) Faculty Aerospace Engineering Department Novel Aerospace Materials Date 2011-01-31 Abstract This thesis describes a research project on the development of a new grade of low cost spring steel with exceptional mechanical properties on the basis of a complete understanding and quantification of the metallurgical processes taking place during the various stages of the heat treatment. The new composition in combination with a new 2-step tempering treatment resulted in a steel with a tensile strength in excess of 2400 MPa and a reduction of area for quasi-static tensile fracture of more than 20%. Subject alloy designquenching and temperingspring steelultra high strengthreduction of areaprecipitation behaviorstep temperingdilatationmodelingdecarburizationoxidation To reference this document use: http://resolver.tudelft.nl/uuid:7ab34006-2323-4779-8ea9-b08e0e43f213 ISBN 9789056230845 Part of collection Institutional Repository Document type doctoral thesis Rights (c) 2011 Choi, S. Files PDF Choi_-_2011-_Optimization ... _steel.pdf 14.08 MB Close viewer /islandora/object/uuid:7ab34006-2323-4779-8ea9-b08e0e43f213/datastream/OBJ/view