|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced High-Strength Steels
||Influences of Thermomechanical Treatments on the Microstructure Evolution and Mechanical Properties of Nano-precipitates Strengthened Steels
||Yu Zhao, Songsong Xu, Hao Guo, Junpeng Li, Z.W. Zhang
|On-Site Speaker (Planned)
Nano-precipitates strengthened steels exhibit excellent combination of high strength, high toughness and good weldability. In this study, the optimized themomechanical processing and aging treatments are used to control simultaneously the matrix microstructure and nano scale preciptiates. The size and number density of nano scale precipitates are characterized by the small-angle neutron scattering (SANS) and atom probe tomography. The matrix microstructure evolution is observed by transmission electron microscopic (TEM). It is found that the low tempereature properties are significantly influenced by themomechanical processing. The aging temperature plays a key role to control the low temperature toughness. The effects of alloying elements and thermomechanical processing on the microstructure evolution and mechanical properties are discussed.
||Planned: Supplemental Proceedings volume