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Article
Influence of Dual-Phase Microstructures on the Properties of High Strength Grade Line Pipes
The influence of dual-phase microstructures on mechanical properties of X70, X80, and X90 line pipes is investigated. It is found that the line pipes with dual-phase microstructures possess both larger unifor...
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Article
The Microstructure Evolution of Dual-Phase Pipeline Steel with Plastic Deformation at Different Strain Rates
Tensile properties of the high-deformability dual-phase ferrite-bainite X70 pipeline steel have been investigated at room temperature under the strain rates of 2.5 × 10−5, 1.25 × 10−4, 2.5 × 10−3, and 1.25 × 10−2
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Article
Microstructural Evolution and the Precipitation Behavior in X90 Linepipe Steel During Isothermal Processing
Thermomechanical controlled processing of 560-MPa (X90) linepipe steel was simulated in the laboratory using a thermomechanical simulator to study the microstructural evolution and precipitation behavior durin...