Published in Journal of Iron and Steel Research International
The combustion properties and grindability of Shenmu low-rank coal (SM) and its four different semi-cokes were studied by the self-designed equipment and Hardgrove method. The four semi-cokes were obtained under the pyrolysis temperature of 400, 500, 600 and 700 °C, named as SM-400, SM-500, SM-600 and SM-700, respectively. The analyses of nitrogen ...
Published in Journal of Iron and Steel Research International
The effects of directional solidification parameters and the coupling of directional solidification parameters and alternating electromagnetic fields on separation and enrichment of the C54–TiSi2 phase were investigated in a directionally solidified hypoeutectic Ti–65 wt.% Si alloy. The results indicated that by increasing the pull-down velocity at...
Published in Journal of Iron and Steel Research International
The nature of the solid erodent particles present in corrosive petroleum fluid can cause transporting pipeline to experience severe erosion and corrosion damages. The effect of erosion on corrosion behavior of API X120 steel was investigated using aluminum oxide and silicon carbide particles with different sizes as erodent and 3.5 wt.% NaCl aqueous...
Published in Journal of Iron and Steel Research International
Blast furnace ironmaking process is the most mature and highly effective process for producing liquid iron. Blast furnace is a gas–solid and gas–solid–liquid countercurrent reactor, and maintaining gas permeability is the precondition of smooth production. Therefore, improving the gas permeability throughout the blast furnace remains a hot issue wh...
Published in Journal of Iron and Steel Research International
Stainless steel pickling sludge (SSPS), generated from the lime neutralization process of spent pickling liquor, is classified as a hazardous waste consisting of abundant metals like Fe, Cr and Ni, and other elements like F, S and Na, etc. Rather than a common disposal in landfill, recovering these metals and other valuable components from SSPS can...
Published in Journal of Iron and Steel Research International
The coarse-grained heat-affected zones (CGHAZs) of X100Q steel were reproduced via simulating their welding thermal cycles with the varying heat input (Ej) from 10 to 55 kJ/cm in Gleeble3500 system. The microstructures were characterized, and the impact toughness was estimated from each simulated sample. The results indicate that the microstructure...
Published in Journal of Iron and Steel Research International
The effects of carbon content (0.078–0.100 wt.%) on the microstructure and properties of 1000 MPa grade deposited metal produced by gas metal arc welding have been investigated. Experimental results show that the microstructure of the deposited metal was mainly composed of martensite, bainite and retained austenite. With increasing carbon content, ...
Published in Journal of Iron and Steel Research International
As the process parameters of pilger cold-rolled seamless steel tubes are basically based on experience leading to the generation of defects, 304 stainless steel was chosen and the important process parameters including the feed, rotation angle and Q value (the ratio of the length of the deformation section to that of the finishing section) were sel...
Published in Journal of Iron and Steel Research International
The by-product gases, which are generated in ironmaking, coking and steelmaking processes, can be used as fuel for the metallurgical processes and on-site power plants. However, if the supply and demand of by-product gases are imbalanced, gas flaring may occur, leading to energy wastage and environmental pollution. Therefore, optimal scheduling of ...
Published in Journal of Iron and Steel Research International
