| About this Abstract |
| Meeting |
Materials Science & Technology 2012
|
| Symposium
|
MS&T'12 Poster Session
|
| Presentation Title |
F10: Optimization of Microstructure and Properties of High Strength Spring Steels |
| Author(s) |
Sangwoo Choi, Sybrand van der Zwaag |
| On-Site Speaker (Planned) |
Sangwoo Choi |
| Abstract Scope |
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. |
| Proceedings Inclusion? |
Definite: A CD-only volume |