High-Temperature Compression Behavior and Phase Transformations During Continuous Cooling of a Low-Alloy Cr-Ni-Mo Ultra-High Strength Steel
Abstract
A quenching and deformation dilatometer simulated the effect of different thermomechanical processing routes on the microstructure and mechanical properties of a Cr-Ni-Mo ultrahigh-strength steel. Hot compression tests were performed in the temperature range of 900–1200 °C and strain rates of 0.01–1 s−1, aiming at modeling the flow stress dependence based on the Zener-Hollomon parameter. Prior austenite grain size was evaluated under different austenitizing conditions and the effect of prior deformation on austenite transformation kinetics during continuous cooling are discussed. The effect of second-phase particles on deformation and recrystallization was determined utilizing scanning electron microscopy and energy dispersive X-ray spectroscopy. Keywords: Cr-Ni-Mo steel, ultrahigh-strength steel, dilatometry, high-temperature compression.
Recommended Citation
Cardoso, R.; Buchely, Mario F.; Athavale, Viraj A.; Chakraborty, S.; O'Malley, Ronald J.; Bartlett, Laura; Limmer, Krista; Sebeck, Katherine; and Field, Daniel, "High-Temperature Compression Behavior and Phase Transformations During Continuous Cooling of a Low-Alloy Cr-Ni-Mo Ultra-High Strength Steel" (2022). PSMRC Faculty Research. 15.
https://scholarsmine.mst.edu/psmrc_facwork/15
Department(s)
Materials Science and Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Association for Iron & Steel Technology, All Rights Reserved
Publication Date
May 2022
