Results 201 to 210 of about 467,100 (247)

Formation of Austenite During Intercritical Annealing of Dual-Phase Steels

Metallurgical Transactions A, 1981
The formation of austenite during intercritical annealing at temperatures between 740 and 900 °C was studied in a series of 1.5 pct manganese steels containing 0.06 to 0.20 pct carbon and with a ferrite-pearlite starting microstructure, typical of most dual-phase steels.
G. R. Speich, V. A. Demarest, R. L. Miller   +2 more
openaire   +1 more source

Phase-Field Modeling for Intercritical Annealing of a Dual-Phase Steel

Metallurgical and Materials Transactions A, 2014
A phase-field model has been developed to describe microstructure evolution during intercritical annealing of a commercial DP600 dual-phase steel. The simulations emphasize the interaction between ferrite recrystallization and austenite formation from a cold-rolled pearlite/ferrite microstructure at high heating rates.
Benqiang Zhu, Matthias Militzer
openaire   +1 more source

Mn Diffusion at Early Stage of Intercritical Annealing of 5Mn Steel

Journal of Iron and Steel Research International, 2015
Mn distribution and austenite morphology at the early stage of intercritical annealing of 5Mn steel were investigated. It was experimentally demonstrated that a newly formed 20 nm-thick austenite was formed without the partitioning of Mn. The elemental analysis confirmed that the growth of austenite should be controlled by the diffusion of C prior to ...
Xi-nan Luo, Xiao-yan Zhong, Hai-wen Luo, Hui-hua Zhou, Cun-yu Wang, Jie Shi   +5 more
openaire   +1 more source

Intercritical annealing as a means of improving impact properties of plate steel

Metallurgical Transactions A, 1988
The influence of long time intercritical heat-treatments (720 to 750 °C) on the impact and tensile properties of ferrite/pearlite steels has been examined. Intercritical annealing enables Mn to diffuse to the α/ γ boundaries and refine the grain-boundary carbides on cooling to room temperature.
B. Mintz, J. Kolahi-Aval
openaire   +1 more source

Effect of intercritical temperature and cold‐deformation on the kinetics of austenite formation during the intercritical annealing of dual‐phase steels

Steel Research, 1990
The objective of this investigation was to study the effect of the intercritical temperature and percentage of cold‐deformation on the kinetics auf austenite formation during the intercritical annealing in the alpha + gammy (α + γ) phase field of the iron‐carbon phase diagram.
Ismail A. El‐Sesy, Hans‐Joachim Klaar, Abdel‐Hamid A. Hussein   +2 more
openaire   +1 more source

Effect of intercritical annealing temperature on equilibrium between ferrite and austenite

Materials Science and Engineering, 1987
Abstract The martensite content of the dual phase Fe-1.0%Mn-0.5%Cr-0.5%Si-0.2%C steel intercritically annealed for 20 min at temperatures up to 770 °C was the same as that calculated by partial equilibrium. This implies that partitioning of carbon occurs and not partitioning of substitutional solutes.
M.C. Chaturvedi, A.K. Jena
openaire   +1 more source

On the significance of intercritical annealing time in governing mechanical properties of lean composition dual-phase steel

Archives of Civil and Mechanical Engineering, 2023
F. Khorasani, Roohollah Jamaati, H. Aval
semanticscholar   +1 more source

Improving the Ductility of Quenching and Partitioning Steel by Cyclic Intercritical Annealing

steel research international
The influences of cyclic intercritical annealing on the microstructure and mechanical properties of cold‐rolled and martensite‐based quenching and partitioning (CR/M‐QP) steels were studied. It was found that with increasing annealing cycles, the ductility of CR/M‐QP steel improved significantly without a notable decease in strength.
Yali Zhang, Xianguang Zhang, Yong Zhong, Meng Chen, Yiwu Pei, Zihang Guan, Haoran Han, Shouli Feng   +7 more
openaire   +1 more source

Influence of intercritical annealing temperature on microstructure, microtexture, and tensile behavior of TRIP-assisted medium manganese steel

Materialia, 2023
Sudipta Mohapatra, Arka Mandal, Govardhana Poojari, Siddhartha Das, K. Das   +4 more
semanticscholar   +1 more source

Formation of austenite from a ferrite-pearlite microstructure during intercritical annealing

Journal of Materials Science, 1985
The formation of austenite from a coarse grained ferrite-pearlite microstructure during intercritical annealing was studied. According to the variation of the microhardness values in ferrite and austenite with intercritical annealing time, austenite formation was classified into four stages: (a) austenite growth into pearlite at a slower rate than the ...
Woo Chang Jeong, Chong Hee Kim
openaire   +1 more source