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Influence of environment, temperature and time of the thermal modification of ash wood (Fraxinus excelsior L.) on the cellulose weight average degree of polymerization

100%

Gawron J.

tom 116

Safety exploitation of aluminium technical constructions in the aspect of seawater environment influence

100%

Jurczak W.

Polish Journal of Environmental Studies

2005

tom 14

nr Suppl.1

Degree of mechanical properties degradation of AlZn5Mgl (PA47) alloy and its weldments under the influence of seawater environment and exploitation stresses has been shown. The superstructure of the 620-class ship was made of the AlZn5Mgl (PA47) alloy, which was the reason of serious problems during the intense exploitation and with technical processing [1]. To eliminate such problems, the chemical structure of AlZn5Mgl (PA47) alloy was modified, and it was subjected to comparative researches. Comparison and analysis of the obtained results confirmed that Al-Zn-Mg alloy can be used for welded light ship constructions that are working under strong stresses and have good corrosion resistance in seawater.

Czego nas nauczyły letnie upały? cz.1. Stres cieplny i jego skutki

88%

Kowalski Z. M.

nr 4