Department of Materials Science and Engineering, Technical University of Gdansk
Narutowicza 11/12, 80-952 Gdansk, Poland
E-mail: azielins@sunrise.pg.gda.pl

Professor Andrzej Zielinski has made the research on different aspects of metallic materials degradation: hydrogen embrittleness, stress corrosion cracking, marine corrosion and degradation of metallic layers. He has demonstrated substantial effects of hydrogen on internal friction and ultrasonic attenuation of carbon and alloy steels, nickel and high nickel alloys, copper. He has recognized the sources of the observed effects as originated from hydrogen-dislocation interaction, hydrogen-carbon interaction, hydrogen pinning of magnetic domain walls in a high purity nickel, an appearance of hydrogen microbubbles in a copper monocrystal, appearance of hydrogen cracks. He has estimated the hydrogen-dislocation enthalpy in nickel. In the research on the environmental degradation of high-strength low-alloy steels he showed that the degree of hydrogen embrittlement of HSLA steels is strictly related to the content of a mobile hydrogen. He described the effects of environment and microstructure in a hydrogen-related stress corrosion cracking of Al-Zn-Mg and Al-Mg-Cu alloys.

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