X-ray diffraction peak profile analysis of maraged Fe-Ni-Mn steels

نویسندگان
Hosseini Nasab, F. ID 1
Hossein Nedjad, S. ID 2
Movaghar Garabagh, M. R. ID 3

1 Faculty of Materials Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran

2 Faculty of Materials Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran

3 Faculty of Materials Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran

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چکیده

X-ray diffraction peak profile analysis was used to identify changes in the lattice distortions during isothermal aging of Fe-10Ni-7Mn (wt. %) maraging steel. Integral peak breadths were analyzed using classical Williamson-Hall equation taking the elastic anisotropy into account. It was found that substantial lattice distortions rise during precipitation hardening which depend strongly on the specific Young’s modulus of a given crystallographic direction. After normalizing by elastic stiffness, the magnitude of average lattice distortions increased reasonably in accordance with age hardening.

کلیدواژه‌ها
X-ray diffraction, peak breadth, maraging, Precipitation, lattice strain