The effects of high temperature deformation quenching and deformation magnitude on grain size and martensite shape of 20 dual-phase steel are discussed by microstructure observation and analysis.

Effect of tensile strain rate on spall fracture in 20 steel;

TiC penetration and depositing on 20 steel surface by double-glow plasma alloying;

Flashing butt welding between ferrite spheroidal graphite cast iron and 20 steel;

Taking 20# steel commonly used in heat exchanges as a study object,its anticorrosion of hot-dip aluminizing was researched.

In recent years, thinking of working safe, 20# steel is applied to significant construction project in the homeland more and more, especially to burying field facilities, therefore, The study on 20# steel’s corroding law and forecasts has very strong theory significance and gigantic realistic value.

The tribological properties of GCr15 steel ball against 20# steel disc under unlubricated condition and lubrication of plant oil containing nano calcium carbonate particles were investigated on the Universal Micro-Tribometer.

Production practice on casting the round tube blank of steel 20 with round tube blank continuous caster

The morphology and formation mechanism of the microstructure of the composite ion-nitrided plus chromized layers obtained at various chromization temperatures in a plain low-carbon steel (steel 20) were investigated using metallography, X-ray diffraction and microanalysis.

The microstructure and fracture morpholo gy of steel 20 were studied using scanning electron microscope (SEM) and X-ray diffractometer (XRD).

Critical specimen thickness of hot galvanized dual-phase steel spot welding;

Microstructure formation of fiber dual-phase steel and its effect on properties;

Analysis of interfacial fracture of resistance spot welding of dual-phase steels;