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We have observed high-dispersion echelle spectra of red giant members in thefive open clusters NGC 1342, NGC 1662, NGC 1912, NGC 2354 and NGC 2447 anddetermined their radial velocities and chemical compositions. These are thefirst chemical abundance measurements for all but NGC 2447. We combined ourclusters from this and previous papers with a sample drawn from the literaturefor which we remeasured the chemical abundances to establish a common abundancescale. With this homogeneous sample of open clusters, we study the relativeelemental abundances of stars in open clusters in comparison with field starsas a function of age and metallicity. We find a range of mild enrichment ofheavy (Ba-Eu) elements in young open cluster giants over field stars of thesame metallicity. Our analysis succinct that the youngest stellar generationsin cluster might be under-represented by the solar neighbourhood field stars.

Comprehensive abundance analysis of red giants in the open clusters NGC 1342, 1662, 1912, 2354 and 2447