Application of multireﬂection grazing incidence method for stress measurements in polished Al–Mg alloy and CrN coating
TypeArticles dans des revues avec comité de lecture
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 two materials were selected in order to deal with the low and high levels of residual stress, respectively. The inﬂuence of different mechanical treatments on residual stresses was studied for Al–Mg samples. It was found that both rolling and mechanical polishing inﬂuence the distribution and amplitude of residual stress in surface layers. In the case of CrN coating, a very high compressive stress was generated during the deposition process. The stress distributions determined by the MGIXD method is in good agreement with the classic sin2 technique results for all studied samples. In performing stress measurements for a powder sample, it was found that the application of the Göbel mirror in the incident beam strongly reduces statistical and misalignment errors. Additionally, the root mean square values of the third order lattice strain within diffracting grains were determined.
Showing items related by title, author, creator and subject.
Stress distribution correlated with damage in duplex stainless steel studied by synchrotron diffraction during plastic necking ZHAO, Yuchen; LE JONCOUR, L; BACZMANSKI, Andrzej; GADALIŃSKA, E; WRONSKI, Sebastian; PANICAUD, B; FRANÇOIS, M; BRAHAM, Chedly; BUSLAPS, T (Elsevier, 2017)The goal of this work was the determination of lattice strains distribution in two phases of duplex steel during plastic necking. Subsequently, the stress heterogeneity in the neck was studied in order to determine the ...
Stress measurements by multi-reflection grazing-incidence X-ray diffraction method (MGIXD) using different radiation wavelengths and different incident angles MARCISZKO, Marianna; BACZMANSKI, Andrzej; BRAHAM, Chedly; WROBEL, Mirosław; WRONSKI, Sebastian; CIOS, Grzegorz (Elsevier, 2017)The presented study introduces the development of the multi-reflection grazing-incidence X-ray diffraction method (MGIXD) for residual stress determination. The proposed new methodology is aimed at obtaining more reliable ...
Effect of interlamellar spacing on the elastoplastic behavior of C70 pearlitic steel: Experimental results and self-consistent modeling YAHYAOUI, Houda; SIDHOM, H; BRAHAM, Chedly; BACZMANSKI, Andrzej (ELSEVIER, 2014)The effect of pearlite microstructure characteristics on strength and deformation of C70 pearlitic steel was investigated. Tensile tests under X-ray diffraction coupled with self-consistent model have been used to identify ...
Problem of elastic anisotropy and stacking faults in stress analysis using multireflection grazing-incidence X-ray diffraction MARCISZKO, Marianna; BACZMANSKI, Andrzej; MIROSŁAW, Wrobel; SEILER, Wilfrid; BRAHAM, Chedly; WRONSKI, Sebastian; WAWSZCZAK, Roman (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 ...
WRONSKI, Sebastian; TARASIUK, J; BACROIX, Brigitte; BACZMANSKI, Andrzej; BRAHAM, Chedly (ELSEVIER, 2012)An EBSD analysis of a duplex steel (austeno-ferritic) deformed in tension up to fracture is presented. The main purpose of the paper is to describe, qualitatively and quantitatively, the differences in the behavior of the ...