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Purpose: of this paper is to review the effect of heat treatments and of strain hardening on microstructure and properties of superduplex stainless steels. Design/methodology/approach: Annealing and strain hardening treatments influences microstructures and properties. Findings: The characteristics and the properties of the industrially employed superduplex grade has been discussed, moreover the presence...
Purpose: of that paper was analysing main plastic properties of welds made by MIG method with micro-jet cooling. The main reason of it was investigate possibilities of getting better plastic properties of welds made by MIG method with micro-jet cooling than welds made by ordinary welding method. It is possible because higher amount of acicular ferrite (AF) in WMD (weld metal deposit) is obtained in...
Purpose: The phase transformations during continuous cooling from the two-phase α+β range in Ti6Al7Nb alloy has been determined. Design/methodology/approach: The phase transformations during continuous cooling of investigated alloy was elaborated using an L78 R.I.T.A dilatometer of the German Linseis Company. The microstructure of investigated alloy cooled from the two-phase α+β range was examinated...
Purpose: In the work is described the method that enables identification of controller of simulation procedures which ensures compliance of experimental research results of changes in material physical characteristics with the characteristics of the numerical model. Design/methodology/approach: The work presents the method of diagnostic assessment of residual strength of composite pipes produced with...
Purpose: The aim of this paper was to investigate changes in surface morphology and optical properties of thin films of Al2O3. Thin films were prepared using atomic layer deposition (ALD) method. Design/methodology/approach: The microanalysis was investigated by the Energy-dispersive X-ray spectroscopy EDS. The changes in surface topography was observed by the atomic force microscope AFM XE-100 and...
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