Spatially resolved deformation studies on carbon steel employing X‐rays and positron annihilation | Zendy

Haaks Matz | Zendy; Müller Ingo | Zendy; Schoeps Andreas | Zendy; Franz Hermann | Zendy

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Spatially resolved deformation studies on carbon steel employing X‐rays and positron annihilation

Author(s) -

Haaks Matz,

Müller Ingo,

Schoeps Andreas,

Franz Hermann

Publication year - 2006

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200622063

Subject(s) - materials science , positron lifetime spectroscopy , deformation (meteorology) , annihilation , positron , crystallite , plasticity , spectroscopy , positron annihilation spectroscopy , physics , composite material , positron annihilation , nuclear physics , metallurgy , electron , quantum mechanics

Spatially resolved studies on plasticity in a polycrystalline sample of the ferritic carbon steel C45E (AISI 1045) were performed after deformation in a three‐point bending test. The local effects of deformation were investigated by scanning the sample with two different methods: Positron Annihilation Spectroscopy ( S ‐parameter) and Debye–Scherrer diffraction (reflex broadening). A simple relation between the results of both experiments and the true strain over the cross‐section of the bent sample is presented in this letter. Comparing the methods a linear correlation between the lattice distortion of α‐iron and the defect sensitive positron annihilation parameter is found. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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