Improving mechanical properties and retained-austenite stability of a medium carbon Q&P steel by adjusting phase ratio

XX Dong, YF Shen, N Jia, YT Zhu - Materials Science and Engineering: A, 2022 - Elsevier
In this study we explored mechanisms for improving the mechanical properties and retained-
austenite (RA) stability of a Q&P steel by adjusting the phase ratio. With increasing …

Elucidating the temperature dependence of TRIP in Q&P steels using synchrotron X-Ray diffraction, constituent phase properties, and strain-based kinetics models

CB Finfrock, B Ellyson, SRJ Likith, D Smith, CJ Rietema… - Acta Materialia, 2022 - Elsevier
Understanding the deformation-induced martensitic transformation (DIMT) is critical for
interpreting the structure-property relationships that govern the performance of …

Strain rate dependent ductility and strain hardening in Q&P steels

CB Finfrock, MM Thrun, D Bhattacharya… - … Materials Transactions A, 2021 - Springer
Due to their high strength, formability and affordable cost, quenched and partitioned (Q&P)
steels have shown the potential to reduce the mass of vehicles, thereby decreasing fuel …

Effect of partitioning treatment on the microstructure and properties of low-carbon ferritic stainless steel treated by a quenching and partitioning process

L Meng, W Li, Q Shi, H Guo, W Liang, H Lu - Materials Science and …, 2022 - Elsevier
We carried out a quenching and partitioning (Q&P) process to some samples of AISI 430
ferritic stainless steel and applied intercritical annealing treatment to others as a …

Decoupling the Impacts of Strain Rate and Temperature on TRIP in a Q&P Steel

CB Finfrock, D Bhattacharya, BNL McBride, TJ Ballard… - Jom, 2022 - Springer
The individual effects of strain rate and temperature on the strain hardening rate of a
quenched and partitioned steel have been examined. During quasistatic tests, resistive …

[HTML][HTML] Short fatigue crack growth and retained austenite in steels processed via quenching and partitioning

P Garcia-Chao, JM Molina-Aldareguia, BM Linke… - Materials & Design, 2024 - Elsevier
Previous research has consistently found that introducing metastable retained austenite
(RA) as a second phase retards the failure of steel under fatigue. However, the reasons for …

Dependence of strengthing and toughening on retained austenite of quenched and partitioned AISI 430 ferritic stainless steel

L Meng, W Li, Q Shi, L Zheng, J Ma, L Yin… - Materials Science and …, 2023 - Elsevier
The quenching and partitioning (Q&P) process was applied to AISI 430 ferritic stainless steel
(FSS). As a comparison, the quenching and tempering (Q&T) process was also applied to …

On the strain hardening and tensile properties of AISI 4140 steel via single‐step quenching and partitioning treatments

M Belfi, S Barella, A Gruttadauria… - steel research …, 2024 - Wiley Online Library
The present study explores the application of single‐step quenching and partitioning (QP)
treatments to low‐silicon commercial AISI 4140 steel. Fractions between 4.6% and 7.8% of …

[HTML][HTML] Comparative study on microstructures and mechanical properties of Q&P steels prepared with hot-rolled and cold-rolled C–Si–Mn sheets

YY Cheng, G Zhao, DM Xu, XP Mao, SQ Bao… - Journal of Materials …, 2022 - Elsevier
In this study, we investigate the microstructures and mechanical properties of quenching and
partitioning (Q&P) steels prepared with hot-rolled (HR) and cold-rolled (CR) sheets at …

[HTML][HTML] A constitutive model for the uniaxial tensile plastic behavior of metals based on the instantaneous strain-hardening exponent

TB Gonoring, MG de Miranda Salustre… - Journal of Materials …, 2022 - Elsevier
The present work develops a new constitutive equation model for strain-hardening behavior
of metallic materials (named herein as the Gonoring model) based on the definition of the …