scholarly journals Aluminising of Mild Steel Plates

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Udaya Bhat Kuruveri ◽  
Prashanth Huilgol ◽  
Jithin Joseph
Keyword(s):  
Elevated Temperatures ◽  
Intermetallic Layer ◽  
Low Carbon Steel ◽  
Steel Plates ◽  
Low Carbon ◽  
Local Composition ◽  
Higher Temperature ◽  
Kinetics Of ◽  
Dipping Time ◽  
Intermetallic Layers

Hot dip aluminising of low carbon steel was done at temperatures 690°C and 750°C for dipping time ranging from 300 to 2400 seconds. During aluminising a mixture of ZnCl2 and NH4Cl was used as flux. During aluminising components of the flux decomposed and zinc formed interacted with the Fe and Al. The aluminised samples were characterised for iron-aluminium intermetallic layer formation, morphology, and local composition. It was observed that intermetallic layer was predominantly Fe2Al5 and FeAl3 at 690°C and at 750°C coating consisted of FeAl3 layer and a layer with Al/Fe ratio greater than 3.26. For both temperatures, coating thickness increased with increase in time. For a given dipping time, deposition was less at higher temperature and this is attributed to changes in the kinetics of growth of individual layers due to dissolved zinc in the aluminium, at 750°C. Also, spalling of intermetallic layers was observed at elevated temperatures and longer dipping times.

scholarly journals Hot-Dip Aluminizing of Low Carbon Steel Using Al-7Si-2Cu Alloy Baths

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Prashanth Huilgol ◽  
Suma Bhat ◽  
K. Udaya Bhat
Keyword(s):  
Carbon Steel ◽  
Intermetallic Layer ◽  
Low Carbon Steel ◽  
Base Material ◽  
Intermetallic Phases ◽  
Average Thickness ◽  
Low Carbon ◽  
Parabolic Relationship ◽  
Dipping Time

Hot-dip aluminizing of low carbon steel was done in molten Al-7Si-2Cu bath at 690°C for dipping time ranging from 300 to 2400 seconds. Characterization of the intermetallics layer was done by using scanning electron microscope with energy dispersive spectroscopy. Four intermetallic phases, τ5-Al7Fe2Si, θ-FeAl3, η-Fe2Al5, and τ1-Al2Fe3Si3, were identified in the reaction layer. τ5- Al7Fe2Si phase was observed adjacent to aluminum-silicon topcoat, θ-FeAl3 between τ5 and η-Fe2Al5, η-Fe2Al5 adjacent to base material, and τ1-Al2Fe3Si3 precipitates within Fe2Al5 layer. The average thickness of Fe2Al5 layer increased linearly with square root of dipping time, while for the rest of the layers such relationship was not observed. The tongue-like morphology of Fe2Al5 layer was more pronounced at higher dipping time. Overall intermetallic layer thickness was following parabolic relationship with dipping time.

Kinetics of microdamage accumulation in low-carbon steel in the initial state and after ECAP

2020 ◽  
Author(s):  
I. O. Sinev ◽  
E. N. Beletsky ◽  
M. R. Tyutin ◽  
L. R. Botvina ◽  
O. V. Rybalchenko ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Initial State ◽  
Microdamage Accumulation ◽  
Kinetics Of

scholarly journals Crystallography and Precipitation Kinetics of Copper Sulfide in Strip Casting Low Carbon Steel

2004 ◽  
Vol 44 (9) ◽  
pp. 1560-1567 ◽  
Author(s):  
Zhongzhu Liu ◽  
Yoshinao Kobayashi ◽  
Kotobu Nagai
Keyword(s):  
Carbon Steel ◽  
Copper Sulfide ◽  
Low Carbon Steel ◽  
Strip Casting ◽  
Low Carbon ◽  
Precipitation Kinetics ◽  
Kinetics Of

Kinetics of Passive Film on Low Carbon Steel in Sodium Nitrate Solution by Numerical Analysis Method

2012 ◽  
Vol 457-458 ◽  
pp. 358-364
Author(s):  
Ye Han ◽  
Zhen Duo Cui ◽  
Qiang Wei ◽  
Sheng Li Zhu ◽  
Xian Jin Yang
Keyword(s):  
Numerical Analysis ◽  
Carbon Steel ◽  
Passive Film ◽  
Sodium Nitrate ◽  
Nitrate Solution ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Analysis Method ◽  
Sodium Nitrate Solution ◽  
Kinetics Of

Comparison Study of Oxidation Behavior of Low Carbon Steel at Elevated Temperatures

2014 ◽  
Vol 1025-1026 ◽  
pp. 504-508 ◽  
Author(s):  
Sang An Ha ◽  
Dong Kyun Kim ◽  
Woo Jin Lee ◽  
Chang Yong Kang ◽  
Kwon Hoo Kim ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Oxidation Rate ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Elevated Temperatures ◽  
Low Carbon Steel ◽  
Comparison Study ◽  
Low Carbon ◽  
Increasing Temperature ◽  
Continuous Oxidation

Comparison study of oxidation behavior of low carbon steel was conducted at the temperature range of 500°C to 700°C under a 0.2 atm oxygen pressure by continuous and discontinuous oxidation methods. Oxidation rate of both cases was found to be increased with increasing temperature from 500°C to 700°C and obeyed parabolic rate law. In addition, activation energy for the continuous oxidation of steel was found to be a 164.8 kJ/mole, which means that oxidation rate is proportionally dependant on temperature. In case of cyclic oxidation, the oxidation rate was shown to faster than continuous oxidation at all temperatures due to direction oxidation through spallation of the oxide layer.

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