Browsing by Author "Palm, Martin"
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Item Open Access Chemically graded Fe–Al/steel samples fabricated by laser metal deposition(Cambridge University Press, 2017-01-30) Lotfian, Saeid; Rolink, Gesa; Weisheit, Andreas; Palm, MartinBy laser metal deposition (LMD) samples from Fe–28Al (at.%) have been built on iron and various steels. Chemically graded iron aluminium and Fe–28Al/steel samples were fabricated with intended concentration gradients by controlling the feed rates of the powders. All samples were subsequently heat treated at 700 °C for 1000 h to study possible reactions between Fe–28Al and the steels and the long-term stability of the composition gradients. Microstructures were characterized by scanning electron microscopy (SEM) and concentration profiles along the building direction were analysed by energy- and wavelength-dispersive spectrometry (EDS, WDS).