This paper reviews the directions and conditions of development of the stru
ctural materials used in modern mechanical engineering. It points out theor
etical and technological bases and methods of production of a new generatio
n advanced materials of so far unattainable properties. Special attention i
s paid to the ways and possibilities of optimization of the chemical compos
ition, technology, structure and properties of materials now in use. Exampl
es of research and the development of structural materials in Polish scienc
e center are given. (C) 2000 Published by Elsevier Science B.V.