International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The features of high-speed primary recrystallization of the cold-worked steels with different chemical composition and structure in the laser impact zone are studied. It has been established that during laser heating of the cold-formed steels, either polygonization or primary recrystallization occurs, which has a dynamic character. It is shown that the range of degrees of cold rolling, at which the character of structure recovery changes from polygonization to recrystallization, increases from 25…30 to 50…60%. The effect of heredity of the cold deformation substructure is revealed. It has been found that the density of dislocations in the surface layer after laser exposure increases by more than an order of magnitude due to plastic shears that introduce forest dislocations. It is shown that in the zone of laser treatment there are signs of columnarity of recrystallized grains and subboundaries, as well as a crystallographic texture.

Due to intentions of Ukrainian economy to join European Union there are many threats and opportunities on the way. Ukraine has a number of industries producing goods, products and services needed in Europe. The growth of economic ties with EU makes Ukrainian manufactures stronger and has become a question of key importance during last decade. Meantime, Ukraine remains within rather tense conditions of technological lag but with some promising abilities in agriculture and food industries supplemented with a great potential in area of information technologies. This distinctive combination of abilities make it feasible for Ukraine both to become a strong partner for EU and to do a great leap of industrial progress within “Industry 4.0” concept. Nevertheless, one of crucial problems for Ukraine is to build an innovative infrastructure to meet requirements of intellectual transport system conforming to EU “Industry 4.0”. This research paper is focused on discussion of these new features of transport industry and opportunities for Ukraine to make its transport industry a leading advantage for the whole economy. Those drastic changes in Ukrainian transport would procure an excellence for other industries implementing “Industry 4.0”, the same as to become a test ground and an exclusive source of experience for EU on “Industry 4.0” implementation.