One of the most promising ways to produce a grain-refined microstructure in some steel materials is the thermomechanical processing route of subcritical recrystallization annealing of a cold-deformed martensite structure. In the present study, the microstructural evolutions and the associated recrystallization kinetics under various subcritical annealing heat treatment conditions are explored i...

The effect of cold swaging and subsequent annealing on the structure mechanical properties a 321-type metastable austenitic stainless steel was studied. Cold to strain 90% produced gradient with gradual decrease in α-phase content from edge center bar. Globular lamellar regions both strain-induced martensite retained austenite were found center, meanwhile, completely globular austenite–martensi...

Hot rolled plate steel as a material to be used for armor needs have the characteristics of high hardness value. Medium carbon basic is quenched at temperature 900 oC and tempering carried out 125 175 with holding time 30 minutes. The Ms value benchmark changes in martensite which influenced by constituent elements material. use water quench medium structure austenite martensite. that occurs in...

The microstructure and properties of a 5 wt.% Cr cold work tool steel were studied after austenitisation at 1020°C, 1050°C or 1075°C followed by single, double and triple tempering treatments at 525°C. The microstructures were investigated with scanning electron microscopy and X-ray diffraction and phase transformations were studied by dilatometry. Furthermore, hardness and Charpy un-notched an...

Major improvements in new advanced high strength steels, especially related to microstructural features, have been made by the steel sector access trade-off between and ductility. In this context, present study provides a detailed analysis of microstructure cold rolled with minimum tensile 980 MPa, which possesses superior elongation when compared other conceptions steels from same level. The a...

Cold rolling of austenitic stainless steel results in increase of residual stresses, hardness, and tensile strength and dislocation density. We have studied the response of eddy current impedance to austenitic change, hardness and its lift off phase in stainless steels during cold reductions. A series of samples of austenitic stainless steel alloys were cold rolled and found that only percentag...

electrical steels are important alloys widely used in electrical instruments. the magnetic properties and low core loss of grain oriented silicon steels are closely related to the sharpness of goss texture ({110} ).the direction of is the softest direction for magnetism.  in this work, the microstructure and dependence of orientation density along the major texture fibers on the applied cold ro...

The detrimental precipitation at the 2205 duplex stainless steel (DSS) grain boundaries has characterized material to have poor workability after being hot-rolled. However, in microstructure is largely influenced by cooling rate or method. There an insufficient investigation of this steel's grade interfaces and rationale its workability. This study investigates influence heat treatment hot-roll...