Redistribution of hydrogen in calibrated wire

The model formed by distributing the concentration of hydrogen in a wire in fluenced by acidic removal of scales and further calibration has been devel oped. It is shown that hydrogen strengthens steel, developing homogeneous a nd inhomogeneous solid solutions, and blocking the movement of dislocations . Besides, hydrogen causes steel to be brittle, forming micropores and micr ocracks. The transition from strengthening to brittleness of steel occurs w ith a slight change of hydrogen concentration and alloy elements. The devel oped electron-microscopic investigations of steels, of ferrite-pearlite cla ss influenced by hydrogenation, brought to light the specific role of hydro gen in the formation of substructure during drawing, and further deformatio n by compression. (C) 2001 International Association for Hydrogen Energy. P ublished by Elsevier Science Ltd. All rights reserved.