continuous grain-boundary cementite can form and cause THE primary requirements for high-strength wire appliembrittlement.[4,5] Nevertheless, we have found that it is cations are tensile strength, ductility, and formability. Coldpossible to use pearlitic steels with carbon contents greater drawn plain-carbon pearlitic steels have commonly been than 0.8 wt pct without the formation of a continuo...

The influence of loading rate (crosshead speed) on the fracture process of bluntly notched samples of pearlitic steel under hydrogen environment is analyzed in this paper. Results indicate that the location of the zone where fracture initiates (fracture process zone) in pearlitic steel samples with a blunt notch directly depends on the loading rate or crosshead speed. For slow testing rates, su...

High-carbon steels have been used to high-strength steel wire and strands for prestressing concrete. The necessity of levels at increasingly larger diameters rods is a technological challenge. Two with without Nb were obtained in mill, submitted detailed microstructural (previous austenitic grain size, pearlite interlamellar spacing colony size) mechanical characterization through tensile tests...

A new modified Johnson-Cook model is developed to capture the non-linear thermal softening behaviour below austenite transformation temperature (723°C) in C45 ferritic-pearlitic steel, which not captured by original (JC) model. The physical mechanisms responsible for this are also studied. experimental quasi-static and high strain rate axisymmetric compression testing from 20°C 720°C implemente...

This study investigated the microstructures of pearlite and martensite transformed from ultrafine-grained austenite in 0.45C steel and Vadded 0.45C steel. The mean prior austenite grain sizes were refined to be 4.5 μm in the 0.45C specimen and 2.4 μm in the V-added 0.45C specimen through cyclic heat treatment of austenitizing and water quenching, i.e., repetition of martensite § austenite trans...

On the incorporation of length scales associated with pearlitic and bainitic microstructures into a visco-plastic self-consistent model D. Canadinc a,∗,1, H. Sehitoglu a,1, H.J. Maier b,2, P. Kurath a,1 a University of Illinois at Urbana-Champaign, Department of Mechanical Science and Engineering, 1206 W. Green Street, Urbana, IL 61801, United States b University of Paderborn, Lehrstuhl f. Werk...

The present study is an attempt to find out the effect of environmental corrosion on the commonly used pearlitic rail steel. The cases of corrosion of rail under Indian environment have been studied. It has been found that in marine environment both the yield strength and tensile strength decreases with increasing corrosion rate. In acidic environment yield strength increased with increasing co...