|About this Abstract
||Materials Science & Technology 2012
||MS&T'12 Poster Session
||F10: Optimization of Microstructure and Properties of High Strength Spring Steels
||Sangwoo Choi, Sybrand van der Zwaag
|On-Site Speaker (Planned)
This study focuses on a new spring steel with a high tensile strength and a high reduction of area upon tensile failure. The strengthening and softening mechanism was discussed to explain the mechanical properties and the microstructural change. The fine precipitates of ε-carbide and cementite may be mainly used to improve the tensile strength and reduction of area simultaneously. With increasing the tempering temperature, ε-carbide dissolves and cementite is formed simultaneously. The size distribution of the (V,Ti,Mo)4C3 carbides remained more or less constant during tempering and hence these precipitates do not play a significant role in the optimization of the tempering conditions. A large prior austenite grain size may contribute to a decrease in the reduction of area.
||Definite: A CD-only volume