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Article
Microstructure and Mechanical Properties of TA2/304 Weld Seam with Cu Transition Layer under Bias Oscillation Laser Welding Process
In this paper, finite element calculations are used to simulate the melting flow pattern within a titanium/steel dissimilar welded joint with Cu as the transition layer under an oscillating laser welding proce...
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Article
Study on Fusion Zone Size, Pore Characteristics, and Mechanical Properties of 6063 Aluminum Alloy Cold Metal Transfer Mix + Synchropulse Welded Joint
ER5183 filler wire is used as filler metal for CMT MIX + Synchropulse welding of 6063 aluminum alloy sheets. The relationships among the fusion zone (FZ) size, pore characteristics, microstructure and mechanic...
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Article
Effect of low-temperature ausforming on bainitic transformation and mechanical properties in ultrahigh-strength bainitic steel
Low-temperature ausforming (LT-AF) prior to bainitic transformation leads to a noticeable acceleration of bainitic transformation kinetics; however, the effect of LT-AF on the retained austenite (RA) features ...
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Article
A novel approach for the edge rolling force and dog-bone shape by combination of slip-line and exponent velocity field
This study presents a new mathematical model for edge rolling force and dog-bone shape using the combination of slip-line and exponent velocity field. The slip-line field of the dog-bone area is drawn out base...
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Article
Hot Deformation Behavior and Processing Maps of a Medium Manganese TRIP Steel
The hot deformation behavior of a medium-Mn steel was studied in terms of hot compression flow curves in the temperature range of 850–1050 °C and strain rates of 0.05–10 s−1. The thermo-mechanical analysis was ca...
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Article
Effect of Heat Input on M-A Constituent and Toughness of Coarse Grain Heat-Affected Zone in an X100 Pipeline Steel
The joining of 14.8 mm thick pipeline steels was achieved with developments in high-power fiber laser by laser welding or hybrid laser arc welding. However, there were few studies on the effects of single-pass...
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Article
Effect of cooling time t8/5 on microstructure and toughness of Nb–Ti–Mo microalloyed C–Mn steel
In order to further optimize welding process of Nb–Ti–Mo microalloyed steel, welding thermal cycles on coarse-grained heat-affected zone (CGHAZ) of welded joints were simulated using Gleeble 1500. The microstr...
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Article
On significance of initial microstructure in governing mechanical behavior and fracture of dual-phase steels
Different initial microstructures were obtained through combination of intercritical annealing and cold-rolling. Subsequently, steels with different microstructures of ferrite–pearlite (FP), ferrite–martensite...
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Article
Microstructure-Property Correlations in Fiber Laser Welded Nb-Ti Microalloyed C-Mn Steel
Mechanical Performance of traditional gas-shielded arc welded joints of 700 MPa grade microalloyed C-Mn steel cannot meet service requirements. Laser welding, with its characteristic high energy density, is kn...
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Article
A new model for thermo-mechanical coupled analysis of hot rolling
A new sine velocity field is proposed to analyze total power in the roll gap for rolling in hot strip finishing mill. The field and linear geometric midline yield criteria are used to calculate the plastic def...
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Article
Effect of Heat-Treatment Schedule on the Microstructure and Mechanical Properties of Cold-Rolled Dual-Phase Steels
Low-carbon (0.08 wt% C) steel has been subjected to three different heat treatments to obtain dual-phase steels with different microstructures. An understanding of structure–property was established through t...
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Article
Analysis of Sheet Curvature in Asymmetrical Cold Rolling
In asymmetric cold rolling, the workpiece is often bent downwards or upwards. A two-dimensional explicit dynamic finite element model with Arbitrary Lagrangian Eulerian (ALE) adaptive meshing technique has bee...
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Article
Tension and Thickness Control Strategy Analysis of Two Stands Reversible Cold Rolling Mill
In order to lucubrate the rolling characteristic of the two stands reversible cold rolling mill and establish the tension and thickness control strategy, the steady-state characteristic simulating program was ...
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Article
Wettability of 780 MPa Super-High Strength Heavy-Duty Truck Crossbeam Steel
CO2-shielded welding experiments of newly developed, 780 MPa super-high strength heavy-duty truck crossbeam steel were conducted, and the microstructure, microhardness, mechanical properties, and impact toughness...
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Article
Delayed fracture resistance and mechanical properties of 30MnSi high strength steel
To investigate the effect of heat treatment on mechanical properties and delayed fracture resistance of high strength steel, 30MnSi prestressed concrete (PC) steel bars are quenched and tempered. Tensile resul...
