TY - JOUR
T1 - Effect of Q&P parameters on microstructure development and mechanical behaviour of Q&P steels
AU - De Diego-Calderón, Irene
AU - De Knijf, Dorien
AU - Molina-Aldareguia, Jon M.
AU - Sabirov, Ilchat
AU - Föjer, Cecilia
AU - Petrov, Roumen
PY - 2015
Y1 - 2015
N2 - Steel with a nominal composition of 0.25C-1.5Si-3Mn-0.023Al (mass %) was subjected to Quenching and Partitioning (Q&P) with varying parameters (quenching temperature, partitioning temperature and partitioning time) resulting in formation of multi-phase microstructure, which was thoroughly studied using X-ray (XRD) and Electron Backscatter Diffraction (EBSD). Mechanical properties of the Q&P steel were measured by tensile tests. Plastic deformation of Q&P steel at micro-scale was investigated by in situ tensile testing and digital image correlation analysis. The effect of Q&P parameters on the microstructure (phase composition, size and volume fraction of micro constituents, texture and carbon content in retained austenite) is discussed. After analyzing the mechanical properties, plastic deformation at the micro-scale and the microstructure, it is shown that the strain partitioning between phases strongly depends on the microstructure of the Q&P steel, which, in turn, can be tuned via manipulation with Q&P parameters.
AB - Steel with a nominal composition of 0.25C-1.5Si-3Mn-0.023Al (mass %) was subjected to Quenching and Partitioning (Q&P) with varying parameters (quenching temperature, partitioning temperature and partitioning time) resulting in formation of multi-phase microstructure, which was thoroughly studied using X-ray (XRD) and Electron Backscatter Diffraction (EBSD). Mechanical properties of the Q&P steel were measured by tensile tests. Plastic deformation of Q&P steel at micro-scale was investigated by in situ tensile testing and digital image correlation analysis. The effect of Q&P parameters on the microstructure (phase composition, size and volume fraction of micro constituents, texture and carbon content in retained austenite) is discussed. After analyzing the mechanical properties, plastic deformation at the micro-scale and the microstructure, it is shown that the strain partitioning between phases strongly depends on the microstructure of the Q&P steel, which, in turn, can be tuned via manipulation with Q&P parameters.
KW - Deformation
KW - Mechanical properties
KW - Phase transformation
KW - Quenching and partitioning
KW - Retained austenite
KW - Steels
UR - http://www.scopus.com/inward/record.url?scp=84925423152&partnerID=8YFLogxK
U2 - 10.3989/revmetalm.035
DO - 10.3989/revmetalm.035
M3 - Article
AN - SCOPUS:84925423152
SN - 0034-8570
VL - 51
JO - Revista de Metalurgia
JF - Revista de Metalurgia
IS - 1
M1 - e035
ER -