Journal Article

PUBDB-2025-00526

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Texture and lattice strain evolution in a pearlitic steel during shear deformation: An in situ synchrotron X-ray diffraction study

da Silva, C. S. A. (Corresponding author) ; Rabelo Coutinho Saraiva, B.Extern* ; Novotný, L. (Corresponding author)Extern* ; Sarvezuk, P. W. C. ; Masoumi, M. ; Silva, C. C. ; Herculano, L. F. G. ; Cardoso, J. L. ; de Abreu, H. F. G. ; Beres, M.Extern*

2024
Pergamon Press Frankfurt, M. [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.ijplas.2024.104083

Abstract: In-situ synchrotron X-ray diffraction experiments were conducted on the pearlitic steel sample with a carbon content of 0.74% by weight. Specimens were subjected to uniaxial loading that induced shear deformation and two-dimensional diffraction patterns were acquired. The evolution of the lattice microstrain and the strain-resolved crystallographic texture development of both ferrite (α-BCC) and cementite (θ-orthorhombic) phases were followed. The analysis revealed that the texture changed from {110}<113>α to {113}<121>α component and then, stabilized at {013}<uvw>α orientations. The θ phase exhibited a weak texture in the {100, 010, and 001}θ family planes. Additionally, it was revealed that the nucleation of interfacial defects at the α/θ interface promotes the amorphization of cementite and the activation of slip systems in less densely packed {310}α planes. The influence of microstructural changes on mechanical properties is discussed.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Helmholtz-Zentrum Hereon (Hereon)
3. Nanolab (FS-NL)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20211274 (I-20211274) (I-20211274)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)
2. DESY NanoLab: Microscopy

Appears in the scientific report 2024

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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