Chemically graded Fe–Al/steel samples fabricated by laser metal deposition. (30th January 2017)

• Record Type: Journal Article
• Authors: Lotfian, Saeid; Rolink, Gesa; Weisheit, Andreas; Palm, Martin
• Is Part Of: MRS advances. Volume 2:Number 26(2017)
• Page Start: 1393
• Page End: 1398
• Publication Date: 2017-01-30
• Subjects: microstructure, -- powder processing, -- scanning electron microscopy (SEM); Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/adv.2017.124
• Languages: English
• ISSNs: 2059-8521

Abstract

ABSTRACT: By 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).