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Article
Microstructure and hydrogen embrittlement of Q690 bainitic steel welded using electron beam
This investigation focused on the welding of Q690 bainitic steel using vacuum electron beam welding with currents of 350 and 500 mA, yielding samples with diverse microstructures and distinct fusion and heat-a...
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Article
Numerical Simulation Study of Welding Process of AH32 Ship Plate Steel
To finely optimize and synergistically control the welding efficiency along with the microstructural properties of AH32 steel plates, computational simulations via COMSOL Multiphysics software were employed. T...
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Article
Microstructure Evolution Behavior of Titanium Microalloyed Steel during Heat Treatment
To study the microstructure evolution behavior of titanium microalloyed steel during heat treatment, we studied the effects of different heat treatment temperatures on the microstructures and properties of tit...
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Article
Corrosion Dynamics of Low Carbon Steel in Salt Spray Environment
In order to study the corrosion dynamics of low carbon steel in neutral salt spray environment, the low carbon steel samples were carried out neutral salt spray corrosion test (SST). The corrosive behavior of ...
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Article
Effect of Laser-Arc Heat Input Ratio on the Formation, Microstructure, and Properties of EH36 Steel with Laser-Metal Inert Gas Hybrid Welding
In the present study, 20 mm EH36 steel was welded by multi-layer and multi-pass laser-MIG hybrid welding, and the influence of different laser-arc heat input ratios (LHI/AHI) on weld formation was studied. Ten...
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Article
Strengthening and toughening mechanism of coarse-grained heat-affected zone for the Cr-/Mo-free Cu-bearing HSLA steel under high heat input welding conditions
In this study, Cr-/Mo-free Cu-bearing steel with the addition of 1.5 wt% Cu was designed to improve the strength and toughness of the coarse-grained heat-affected zone (CGHAZ) at high heat input. A comparative...
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Article
Open AccessRelationship of the Microstructure and Toughness of the Coarse Grain Heat-Affected Zone of TiNbV Microalloyed Steels Based on Electron Backscatter Diffraction Analysis
The microstructure evolution and impact toughness of the coarse grain heat-affected zone (CGHAZ) of TiNbV microalloyed steels were investigated by using a thermal simulation test. The samples were treated with...
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Chapter and Conference Paper
Effect of Pipe Body Alloy on Weldability of X80 Steel
Effect of Mo, Ni, and Cr on impact property of pipe seam and heat-affected zone (HAZ) of X80 steel was investigated by thermal simulation test and butt welding test. The results showed that, there was an obvio...
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Chapter and Conference Paper
Effects of the Performance of Ship Steel for High Heat Input Welding by Micro-Alloy Element
Orthogonal experimental design is used to study the effects of alloying elements Ti, Nb and Zr on strength, toughness of base metal and quantity of M-A constituent in HAZ of ship plate. The results show that N...
