The key objective of the present study is to analyze friction coefficient and wear rate for ductile cast iron. Three different microstructures were chosen upon which perform experimental tests under sliding time, load, speed conditions. These specimens perlite + ferrite, bainitic. Moreover, an artificial neural network (ANN) model was developed in order predict using a set data collected during...

The boron-free S700MC steel is usually produced by exploiting the properties of a ferrite-bainite mixed microstructure formed coiling strips at temperature about 450?C, i.e.below bainite starting temperature. With aim further enhancing mechanical 6 to 10 mm thick strips, industrial tests were carried out 600?C promote formation structure ferrite and carbides, which also acceptable for this type...

This laboratory study aimed to reveal the inner connects between microstructure and corrosion properties of a RE microalloyed ultra-thin cast strip (UCS) steel. The mainly consisted homogeneous polygonal ferrite (PF) with small amount pearlite (P), while adding multiple alloying elements led appearance granular bainite (GB) bainitic (BF). strongly promoted homogenization refinement by segregati...

Some applications of phase transformation theory towards the exploitation of bainitic microstructures are discussed , with particular emphasis on the quantitative aspects of alloying element effects. Examples are used to illustrate the principles involved in the design of advanced bainitic alloys of the type currently under investigation in the steel industry.

In this study, the changes in microstructure and mechanical properties during isothermal heat treatment of cast steel before after hot deformation were investigated using medium-carbon with low alloy content. The microstructural characteristics hot-rolled under heat-treatment conditions examined optical microscopy scanning electron conjunction backscatter diffraction. variation was evaluated Ro...

The addition of high-content alloying elements and the unbefitting process make carbide-free bainite steel difficult in industrial production. Thus, we adopted a dynamic continuous cooling for developing high-strength cold-rolled low-alloy bainitic steels this study. influence rates on microstructure mechanical properties was investigated by dilatometry, scanning electron microscopy (SEM), X-ra...

In order to suppress global warming, it is necessary reduce the weight of autobodies, whereas improvement collision safety automobiles required which results in a increase. Research and development high-strength steel sheets for autobodies are being carried out achieve both two objectives. Among various sheets, low alloy steels utilizing transformation-induced plasticity retained austenite (TRI...