A novel approach for nondestructive depth-resolved analysis of residual stress and grain interaction in the near-surface zone applied to an austenitic stainless steel sample subjected to mechanical polishing
Article dans une revue avec comité de lecture
Author
![](/static/icons/feed.png)
230243 Swiss Federal Laboratories for Materials Science and Technology [Dübendorf] [EMPA]
![](/static/icons/feed.png)
220689 Helmholtz-Zentrum Berlin für Materialien und Energie GmbH = Helmholtz Centre Berlin for Materials and Energy = Centre Helmholtz de Berlin pour les matériaux et l'énergie [HZB]
Date
2022-05Journal
MeasurementAbstract
The choice of the grain interaction model is a critical element of residual stress analysis using diffraction methods. For the near-surface region of a mechanically polished austenitic steel, it is shown that the application of the widely used Eshelby-Kr¨oner model does not lead to a satisfactory agreement with experimental observations. Therefore, a new grain interaction model called ’tunable free-surface’ is proposed, allowing for the determination of the in-depth evolution of the elastic interaction between grains. It has a strong physical justification and is adjusted to experimental data using three complementary verification methods. It is shown that a significant relaxation of the intergranular stresses perpendicular to the sample surface occurs in the subsurface layer having a thickness comparable with the average size of the grain. Using the new type of X-ray Stress Factors, the in-depth evolution (up to the depth of 45 μm) of residual stresses and of the strain-free lattice parameter is determined.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureMARCISZKO-WIĄCKOWSKA, Marianna; OPONOWICZ, Adrian; BACZMANSKI, Andrzej; WRÓBEL, Mirosław X.; WAWSZCZAK, Roman;
BRAHAM, Chedly (International Union of Crystallography, 2019)
The multireflection grazing-incidence X-ray diffraction method is used to test surface stresses at depths of several micrometres in the case of metal samples. This work presents new ways of analysing experimental data ... -
Article dans une revue avec comité de lectureMARCISZKO-WIACKOWSKA, M; BACZMANSKI, Andrzej;
BRAHAM, Chedly; WATROBA, M.;
WRONSKI, Sebastian; WAWSZCZAK, R.; GONZALEZ, Gonzalo;
KOT, Piotr; KLAUS, Manuela;
GENZEL, Christoph (Elsevier, 2023-06)
In the presented research, the intergranular elastic interaction and the second-order plastic incompatibility stress in textured ferritic and austenitic steels were investigated by means of diffraction. The lattice strains ... -
Article dans une revue avec comité de lectureMARCISZKO, Marianna; WAWSZCZAK, Roman; SIDHOM, Habib; WROBEL, Mirosław; WRONSKI, Sebastian; OPONOWICZ, Adrian; GENZEL, Christoph; KLAUS, Manuela; BACZMANSKI, Andrzej;
BRAHAM, Chedly (International Union of Crystallography, 2018)
The main focus of the presented work was the investigation of structure and residual stress gradients in the near-surface region of materials studied by X-ray diffraction. The multireflection method was used to measure ... -
Article dans une revue avec comité de lectureMARCISZKO, Marianna; BACZMANSKI, Andrzej; WIERZBANOWSKI, K; WROBEL, Mirosław; CHOPART, J.-P.; LODINI, A; BONARSKI, J; TARKOWSKI, L.; ZAZI, N;
BRAHAM, Chedly (Elsevier, 2012)
Multi-reflection grazing incidence geometry, referred to as MGIXD, characterized by a small and constant incidence angle, was applied to measure low surface stresses in very thin layers of Al–Mg alloy and CrN coating. These ... -
Article dans une revue avec comité de lectureMARCISZKO, Marianna; BACZMANSKI, Andrzej; MIROSŁAW, Wrobel; SEILER, Wilfrid; WRONSKI, Sebastian; WAWSZCZAK, Roman;
BRAHAM, Chedly (International Union of Crystallography, 2015)
Multireflection grazing-incidence X-ray diffraction (MGIXD) was used to determine the stress- and strain-free lattice parameter in the surface layer of mechanically treated (polished and ground) tungsten and austenitic ...