Search results for " friction stir processing"

showing 3 items of 3 documents

Wavelets Image Analysis for Friction Stir Processed TiNi Functional Behavior Characterization

2015

Abstract A key topic regarding Ti Ni Shape Memory materials concerns the possibility to attain welded junctions that preserves the shape memory properties of material. Other research topic for SMAs regards the retention of the shape memory effect cyclic stability; in fact, good shape memory properties frequently decrease during SME cycling of material. A method able to improve the cyclic stability of TiNi shape memory effect is the grain refinement. Considering these above mentioned research topics, a solid state welding process, as the Friction Stir Welding, is thus attractive for SMA joining and it exhibits potentials for achieving welded joints affected by microstructural changes that pr…

AusteniteWavelets image analysis Friction Stir Processing Shape memory alloyFriction stir processingMaterials scienceShape memory alloys.MetallurgyWavelets image analysisGeneral MedicineWeldingShape-memory alloyFriction Stir ProcessingMicrostructurelaw.inventionlawDiffusionless transformationMartensiteFriction stir weldingComposite materialEngineering(all)Procedia Engineering
researchProduct

Image Enhancement Algorithm for Optical Microstructural Characterization of Shape Memory TiNi Friction Stir Processed

2017

Abstract A key topic regarding TiNi alloys concerns the possibility to attain junctions that preserve the shape memory properties of material. Experimental tests, previously performed on TiNi sheet friction stir processed, have highlighted the need to develop an appropriate image analysis method to quantify the various phases percentages present in the characteristics zones of Friction Stir Welding process. A proper Image Processing procedure has been performed in order to quantify the amount of the martensitic phase and to detect its morphology modification along to the processed region. Particularly each micrographic image, firstly, has been denoised using the 2D Wavelet transform techniq…

0209 industrial biotechnologyFriction stir processingMaterials scienceWavelet transformImage processing02 engineering and technologyGeneral MedicineShape-memory alloyImage enhancement shape memory alloy friction stir processingHaar wavelet020901 industrial engineering & automationWavelet0202 electrical engineering electronic engineering information engineeringFriction stir welding020201 artificial intelligence & image processingAdaptive histogram equalizationAlgorithmProcedia Engineering
researchProduct

Properties Augmentation of Cast Hypereutectic Al–Si Alloy Through Friction Stir Processing

2022

AbstractThe present endeavour is to augment mechanical attributes via friction stir processing (FSP) in hypereutectic aluminium–silicon castings by the means of microstructural modifications and defects reduction. Wherein, the study proceeds with mainly two approaches namely, alteration in tool revolution (TR) and the number of FSP passes. The prepared specimens were evaluated investigating volume fraction of porosities, microstructural characterizations and microhardness. Therefrom, the specimen with highest number of passes delivered most uniform properties resulting from the reduction in casting porosities and refined silicon particle uniform distribution throughout friction stir process…

Casting modification; Materials processing; Friction stir processing; Aluminium; Porosity; Grain refinementMechanics of MaterialsMetals and AlloysMetallurgy and Metallic MaterialsMaterials ChemistryMaterialkemiAluminium Casting modification Friction stir processing Grain refinement Materials processing PorosityMetallurgi och metalliska materialCondensed Matter PhysicsSettore ING-IND/16 - Tecnologie E Sistemi Di Lavorazione
researchProduct