Effect of Cooling Rate and Austenitic Grain Size on the Austenite Decomposition Kinetics in a Low-Carbon Steel

2021 ◽  
Author(s):  
C. Barajas-Miguel ◽  
◽  
O. Vazquez-Gomez ◽  
A. Oliver-Reynoso ◽  
E. Lopez-Martinez ◽  
...  
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Cooling Rate ◽  
Low Carbon Steel ◽  
Decomposition Kinetics ◽  
Austenite Decomposition ◽  
Low Carbon ◽  
Austenitic Grain Size

Effect of Titanium Sulfide Particles on Grain Size in Low Carbon Steel

2017 ◽  
pp. 701-708
Author(s):  
Yuan Wu ◽  
Bowen Peng ◽  
Fangjie Li ◽  
Shaobo Zheng ◽  
Huigai Li
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Titanium Sulfide

Effects of grain size gradients on the fretting wear of a specially-processed low carbon steel against AISI E52100 bearing steel

Wear ◽  
2018 ◽  
Vol 412-413 ◽  
pp. 1-13 ◽  
Author(s):  
Prabhat K. Rai ◽  
S. Shekhar ◽  
K. Mondal
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Bearing Steel ◽  
Fretting Wear ◽  
Low Carbon

Coupling Effect of Prior Austenite Grain Size and Inclusion Characteristics on Acicular Ferrite Formation in Ti-Zr Deoxidized Low Carbon Steel

2020 ◽  
Vol 51 (2) ◽  
pp. 480-491
Author(s):  
Yongkun Yang ◽  
Dongping Zhan ◽  
Hong Lei ◽  
Yulu Li ◽  
Guoxing Qiu ◽  
...  
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Prior Austenite ◽  
Coupling Effect ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Austenite Grain Size ◽  
Austenite Grain ◽  
Prior Austenite Grain Size ◽  
Prior Austenite Grain

scholarly journals Effect of Carbon Partitioning, Carbide Precipitation, and Grain Size on Brittle Fracture of Ultra-High-Strength, Low-Carbon Steel after Welding by a Quenching and Partitioning Process

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 747 ◽  
Author(s):  
Farnoosh Forouzan ◽  
M. Guitar ◽  
Esa Vuorinen ◽  
Frank Mücklich
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Weld Zone ◽  
Low Carbon Steel ◽  
High Strength ◽  
Precipitate Size ◽  
Low Carbon ◽  
Quenching And Partitioning ◽  
High Level ◽  
The Impact

To improve the weld zone properties of Advanced High Strength Steel (AHSS), quenching and partitioning (Q&P) has been used immediately after laser welding of a low-carbon steel. However, the mechanical properties can be affected for several reasons: (i) The carbon content and amount of retained austenite, bainite, and fresh martensite; (ii) Precipitate size and distribution; (iii) Grain size. In this work, carbon movements during the partitioning stage and prediction of Ti (C, N), and MoC precipitation at different partitioning temperatures have been simulated by using Thermocalc, Dictra, and TC-PRISMA. Verification and comparison of the experimental results were performed by optical microscopy, X-ray diffraction (XRD), Scanning Electron Microscop (SEM), and Scanning Transmission Electron Microscopy (STEM), and Energy Dispersive Spectroscopy (EDS) and Electron Backscatter Scanning Diffraction (EBSD) analysis were used to investigate the effect of martensitic/bainitic packet size. Results show that the increase in the number density of small precipitates in the sample partitioned at 640 °C compensates for the increase in crystallographic packets size. The strength and ductility values are kept at a high level, but the impact toughness will decrease considerably.

scholarly journals Effect of Starting Microstructures on the Reverse Transformation Kinetics in Low-Carbon Steel

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1601
Author(s):  
Junhua Hou ◽  
Binbin He
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Reverse Transformation ◽  
Transformation Rate ◽  
Low Carbon ◽  
Transformation Kinetics ◽  
Forward Transformation ◽  
Different Grain Size ◽  
Initial Starting

The effect of the initial starting microstructures on the austenite reverse transformation kinetics is thoroughly studied in low-carbon steel. The different initial starting microstructures including the ferrite + pearlite, bainite, and martensite are obtained through varied forward transformation. It is found that the bainite phase demonstrates highest reverse transformation rate while the ferrite + pearlite shows the lowest transformation rate. The above observation can be explained through the different grain size of the initial starting microstructures as the grain boundaries could act as the nucleation sites for austenite reverse transformation. The explanation is further substantiated based on the consideration of the reverse transformation kinetics from the martensite microstructure with different grain size.

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