Effect of alloying elements on the microstructure and properties of a hot-rolled low-carbon low-alloy bainitic steel

1976 ◽  
Vol 7 (9) ◽  
pp. 1389-1400 ◽  
Author(s):  
P. L. Mangonon
Keyword(s):  
Alloying Elements ◽  
Bainitic Steel ◽  
Low Carbon ◽  
Microstructure And Properties ◽  
Hot Rolled ◽  
Effect Of Alloying

Mechanical properties and hot-rolled microstructures of a low carbon bainitic steel with Cu–P alloying

2011 ◽  
Vol 528 (21) ◽  
pp. 6401-6406 ◽  
Author(s):  
W.F. Cui ◽  
S.X. Zhang ◽  
Y. Jiang ◽  
J. Dong ◽  
C.M. Liu
Keyword(s):  
Mechanical Properties ◽  
Bainitic Steel ◽  
Low Carbon ◽  
Hot Rolled

Effect of Aging Temperature on the Microstructure and Mechanical Properties of 1000MPa Grade Low Carbon Bainitic Steel

2012 ◽  
Vol 152-154 ◽  
pp. 376-380 ◽  
Author(s):  
Long Fei Zuo ◽  
Zhan Lei Wei ◽  
Ri Ni ◽  
Ben Ma ◽  
Zi Dong Wang
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Yield Strength ◽  
Aging Temperature ◽  
Granular Bainite ◽  
Bainitic Steel ◽  
Low Carbon ◽  
Microstructure And Mechanical Properties ◽  
Effect On Yield ◽  
Hot Rolled

A kind of 1000MPa low carbon bainitic steel belonged to the Fe-Cu-Nb series was hot rolled and aged, the influence of aging temperatures on the microstructure and mechanical properties of the steel were investigated by using Scanning electron microscopy (SEM) and transmission electron microscopy(TEM). The results show that the microstructure of the low carbon bainitic steel consisted of lath-shaped bainite(LB), granular bainite(GB) and quasi-polygonal ferrite(QF), and the proportion of each kind of microstructure changed with the aging temperatures. The strength of steel with the increase of aging temperature first increased, then decreased, Aging temperatures had distinct effect on yield strength of the tested steel, and less effect on the ultimate tensile strength, we can get the best comprehensive properties yield strength 1011.87 MPa and elongation rate 16.38% of good tough match aged at 450°C. Through analysis it is concluded that the strength of the tested steels aged at 450°C reaches the maximum value, which is attributed to the precipitation of a large amount of fine ε-Cu particles(5~10nm) and a small number of(Nb,Ti)(C,N) precipitates.

Effect of Alloying Elements on the Corrosion Behavior of Carbon Steel in CO2 Environments

CORROSION ◽  
10.5006/2705 ◽  
2018 ◽  
Vol 74 (5) ◽  
pp. 566-576 ◽  
Author(s):  
Yoon-Seok Choi ◽  
Srdjan Nešić ◽  
Hwan-Gyo Jung
Keyword(s):  
Carbon Steel ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Low Carbon Steel ◽  
Steel Sample ◽  
Alloying Elements ◽  
Low Carbon ◽  
Surface Analysis Techniques ◽  
Positive Effect ◽  
Effect Of Alloying

The objective of the present study was to evaluate the effect of alloying elements (Cr, Mo, and Cu) on the corrosion behavior of low carbon steel in CO2 environments. Six samples were prepared with varying Cr content from 0 wt% to 2 wt% and with added 0.5 wt% of Mo and Cu; the specimens had ferritic/pearlitic microstructures. Steel samples were exposed to a CO2-saturated 1 wt% NaCl solution with different combinations of pH and temperature (pH 4.0 at 25°C, pH 6.6 at 80°C, and pH 5.9 at 70°C). Changes in corrosion rate with time were determined by linear polarization resistance measurements. The surface morphology and the composition of the corrosion product layers were analyzed by surface analysis techniques (scanning electron microscopy and energy dispersive x-ray spectroscopy). Results showed that the presence of Cr and Cu showed a slight positive effect on the corrosion resistance at pH 4.0 and 25°C. At pH 6.6 and 80°C, regardless of the alloying elements, the trend of corrosion rate with time was similar, i.e., the corrosion rate of all specimens decreased with time resulting from the formation of protective FeCO3. A beneficial effect of Cr presence was clearly seen at “gray zone” conditions: pH 5.9 and 70°C, where steel sample without Cr showed no decrease in corrosion rate with time. The presence of Cr in the steel promoted the formation of protective FeCO3 with Cr enrichment and it decreased the corrosion rate.

The Effect of Stress on Bainite Transformation, Microstructure, and Properties of a Low‐Carbon Bainitic Steel

2019 ◽  
Vol 90 (10) ◽  
pp. 1900159 ◽  
Author(s):  
Man Liu ◽  
Guang Xu ◽  
Junyu Tian ◽  
Qing Yuan ◽  
Mingxing Zhou ◽  
...  
Keyword(s):  
Bainitic Steel ◽  
Low Carbon ◽  
Bainite Transformation ◽  
Microstructure And Properties

Effect of Alloying Elements on Microstructure and Properties of Fe-Al and Fe-Al-Si Alloys Produced by Reactive Sintering

2011 ◽  
Vol 465 ◽  
pp. 407-410 ◽  
Author(s):  
Pavel Novák ◽  
Jan Šerák ◽  
Dalibor Vojtěch ◽  
Michala Zelinková ◽  
Lucie Mejzlíková ◽  
...  
Keyword(s):  
Phase Composition ◽  
Tribological Properties ◽  
Alloy Composition ◽  
Alloying Elements ◽  
High Porosity ◽  
Reactive Sintering ◽  
Microstructure And Properties ◽  
Mechanical And Tribological Properties ◽  
Sintering Behaviour ◽  
Effect Of Alloying

Pressureless reactive sintering production of iron aluminides is always connected with high porosity of the product. Previous research showed that silicon reduces the porosity significantly. In this work, the effect of alloying elements (Cu, Ni) on the reactive sintering behaviour and on the porosity of Fe-Al and Fe-Al-Si alloys was studied. Microstructure, phase composition, mechanical and tribological properties were studied as functions of alloy composition.

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