Division of character zones and elements distribution of Fe3Al/Cr–Ni alloy fusion bonded joint
Authors: Ma, H. J.; Li, Y. J.; Li, J. N.; Wang, J.
Source: Materials Science and Technology, Volume 23, Number 7, July 2007 , pp. 799-802(4)
Publisher: Maney Publishing
Abstract:A Fe3Al/Cr–Ni alloy fusion bonded joint was divided into four character zones of a homogeneous mixture zone, a partial mixture zone, a partially fused zone and a heat affected zone. The microstructures, elements distribution and phase constitutions of the various character zones were analysed via metalloscope, SEM, electron probe microanalysis and X-ray diffraction. The results indicated that the microstructures were dissimilar in the different character zones. A 0·04–0·05 mm austenite rich band existed in the partial mixture zone. The diffusion of Fe, Al, Cr, Ni and C mainly occurred in fusion zone where Cr and Ni diffused into Fe3Al to substitute some Fe on α 1, α 2, and β sublattices to form substitutional solid solution. The phase constitutions of Fe3Al/Cr–Ni joint were Fe3Al, γ-Fe, FeAl, NiAl, an unidentified Fe–C compound and an Fe–Cr–C compound (Cr9Fe)7C3.
Document Type: Research Article
Publication date: 2007-07-01
Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.Materials Science and Technology is the successor of two previous titles, for which digitised archives are available: Metal Science (Vols. 1—17; 1967—84) and Metals Technology (Vols. 1—11; 1974—84).
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