the quenching and partitioning (q&p;) process is a new heat treatment cycle to produce the third generation of advanced high strength steels based on diffusion of carbon from martensite to retained austenite phase. the application of this process for various steels leads to a remarkable combination of mechanical properties including high strength and good ductility. using this process in automo...

The negative corona discharge has been generated in flowing oxygen and carbon dioxide. Electrodes in the reactor were in coaxial geometry. The inner (wire) electrode was made of molybdenum and the outer electrode was made of stainless steel, aluminium or brass. The negative corona discharge has been generated in flowing pure oxygen and carbon dioxide at atmospheric pressure and ambient temperat...

To investigate the modification of type B inclusions in high-carbon hard-wire steel with Ca treatment, Si-Ca alloy was added to hard-steel, and composition, morphology, size, quantity, distribution were observed. The samples investigated by scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS). experimental thermal results showed that effect inclusion better Al 0.0053% 0.0029% t...

Abstract In contrast to conventional components made from a single material, hybrid multi-material allow the production of load-adapted parts with different materials in structural and functional areas. Hardenable forgeable steels high carbon content are suitable for increasing fatigue wear resistance thus an extension component life. However, equivalent more than 0.6 considered difficult weld ...

the unique properties of air-cooled bainitic steels have been described. a series of mn containing air-cooled bainitic steels invented by authors is presented in this paper: including low carbon granular bainitic steels, low carbon grain-boundary allotriomorphic ferrite/granular bainite duplex steels, medium and medium high carbon bainite/martensite duplex steel, and low carbon carbide free bai...

The metallic low and intermediate level radioactive waste generally consists of carbon steel and stainless steels. The corrosion rate of carbon steel in deep groundwater is typically low, unless the water is very acidic or microbial activity in the environment is high. Therefore, the assessment of microbially induced corrosion of carbon steel in deep bedrock environment has become important for...