Open AccessA study on the static recrystallization behavior of an ultrahigh-strength stainless steel
Author(s) -
Xiao Hui Wang,
Zhenbao Liu,
Jianxiong Liang,
ZuPo Yang,
Yilong Sun,
Changjun Wang,
Yue Qi
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
ISSN - 2053-1591
DOI - 10.1088/2053-1591/abfb0b
Subject(s) - materials science , recrystallization (geology) , dynamic recrystallization , microstructure , metallurgy , carbide , isothermal process , grain boundary , deformation (meteorology) , precipitation , composite material , hot working , thermodynamics , geology , paleontology , physics , meteorology
The static recrystallization (SRX) behavior of an ultrahigh-strength stainless steel (UHSSS) was investigated via double-hit isothermal compression tests. The results revealed that the kinetics of static recrystallization and the corresponding microstructural evolution were not only prominently influenced by the deformation parameters and initial microstructures but also suppressed due to the precipitation of M 6 C carbides below 1050 °C, which sufficiently pinned the boundaries. Numerical models for predicting the recrystallized fraction and grain sizes were proposed based on the experimental results. The kinetics model could predict the process of SRX in the deformation temperature range from 1050 °C to 1150 °C well, whereas there were some deviations between the predictions and experimental results due to the interaction of the M 6 C carbides and SRX when the deformation temperature was below 1050 °C.