The Austenite-to-Pearlite/Ferrite Transformation

2017 ◽  
pp. 106-113 ◽  
Keyword(s):  
Ferrite Transformation

Spinel ferrite transformation for enhanced upgrading nickel grade in laterite ore of various types

2021 ◽  
Vol 163 ◽  
pp. 106795
Author(s):  
Jian-ming Gao ◽  
Wenjie Li ◽  
Shujia Ma ◽  
Zongyuan Du ◽  
Fangqin Cheng
Keyword(s):  
Spinel Ferrite ◽  
Ferrite Transformation ◽  
Nickel Grade ◽  
Laterite Ore

scholarly journals A Comparative Study of Acicular Ferrite Transformation Behavior between Surface and Interior in a Low C–Mn Steel by HT-LSCM

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 699
Author(s):  
Xiaojin Liu ◽  
Guo Yuan ◽  
Raja. Devesh Kumar Misra ◽  
Guodong Wang
Keyword(s):  
Grain Boundaries ◽  
Cooling Rate ◽  
Acicular Ferrite ◽  
Laser Scanning ◽  
Sample Surface ◽  
Surface Microstructure ◽  
In Situ Observation ◽  
Low Carbon ◽  
Transformation Behavior ◽  
Ferrite Transformation

In this study, the acicular ferrite transformation behavior of a Ti–Ca deoxidized low carbon steel was studied using a high-temperature laser scanning confocal microscopy (HT-LSCM). The in situ observation of the transformation behavior on the sample surface with different cooling rates was achieved by HT-LSCM. The microstructure between the surface and interior of the HT-LSCM sample was compared. The results showed that Ti–Ca oxide particles were effective sites for acicular ferrite (AF) nucleation. The start transformation temperature at grain boundaries and intragranular particles decreased with an increase in cooling rate, but the AF nucleation rate increased and the surface microstructure was more interlocked. The sample surface microstructure obtained at 3 °C/s was dominated by ferrite side plates, while the ferrite nucleating sites transferred from grain boundaries to intragranular particles when the cooling rate was 15 °C/s. Moreover, it was interesting that the microstructure and microhardness of the sample surface and interior were different. The AF dominating microstructure, obtained in the sample interior, was much finer than the sample surface, and the microhardness of the sample surface was much lower than the sample interior. The combined factors led to a coarse size of AF on the sample surface. AF formed at a higher temperature resulted in the coarse size. The available particles for AF nucleation on the sample surface were quite limited, such that hard impingement between AF plates was much weaker than that in the sample interior. In addition, the transformation stress in austenite on the sample surface could be largely released, which contributed to a coarser AF plate size. The coarse grain size, low dislocation concentration and low carbon content led to lower hardness on the sample surface.

scholarly journals The Role of Nucleation Behavior in Phase-Field Simulations of the Austenite to Ferrite Transformation

2008 ◽  
Vol 39 (6) ◽  
pp. 1237-1247 ◽  
Author(s):  
M.G. Mecozzi ◽  
M. Militzer ◽  
J. Sietsma ◽  
S. van der Zwaag
Keyword(s):  
Phase Field ◽  
Nucleation Behavior ◽  
Ferrite Transformation

Numerical simulation of dynamic strain-induced austenite–ferrite transformation in a low carbon steel

2009 ◽  
Vol 57 (10) ◽  
pp. 2956-2968 ◽  
Author(s):  
Chengwu Zheng ◽  
Namin Xiao ◽  
Luhan Hao ◽  
Dianzhong Li ◽  
Yiyi Li
Keyword(s):  
Numerical Simulation ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Dynamic Strain ◽  
Low Carbon ◽  
Ferrite Transformation

Temporal oscillatory behavior in deformation induced ferrite transformation in an Fe–C binary system

2004 ◽  
Vol 50 (6) ◽  
pp. 909-913 ◽  
Author(s):  
Mingming Tong ◽  
Jun Ni ◽  
Yutuo Zhang ◽  
Dianzhong Li ◽  
Yiyi Li
Keyword(s):  
Binary System ◽  
Oscillatory Behavior ◽  
Ferrite Transformation ◽  
Deformation Induced Ferrite Transformation

Influence of magnetic field on ferrite transformation in a Fe–C–Mn alloy

2009 ◽  
Vol 321 (24) ◽  
pp. 4010-4016 ◽  
Author(s):  
G.H. Zhang ◽  
M. Enomoto ◽  
N. Hosokawa ◽  
M. Kagayama ◽  
Y. Adachi
Keyword(s):  
Magnetic Field ◽  
Ferrite Transformation
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