6533b82cfe1ef96bd128f74b

RESEARCH PRODUCT

New Materials Design Through Friction Stir Processing Techniques

Livan FratiniRajiv ShivpuriGianluca Buffa

subject

Insert (composites)Friction stir processingMaterials scienceMetallurgyWeldingFriction Stir ProcessingMicrostructureMaterial flowlaw.inventionlawFriction stir weldingFriction weldingJoint (geology)Settore ING-IND/16 - Tecnologie E Sistemi Di Lavorazione

description

Friction Stir Welding (FSW) has reached a large interest in the scientific community and in the last years also in the industrial environment, due to the advantages of such solid state welding process with respect 1(o) the classic ones. The complex material flow occurring during the process plays a fundamental role in such solid state welding process, since it determines dramatic changes in the material microstructure of the so called weld nugget, which affects the effectiveness of the joints. What is more, Friction Stir Processing (FSP) is mainly being considered for producing high-strain-rate-superplastic (HSRS) microstructure in commercial aluminum alloys. The aim of the present research is the development of a locally composite material through the Friction Stir Processing (FSP) of two AA7075-T6 blanks and a different material insert. The results of a preliminary experimental campaign, carded out at the varying of the additional material placed at the sheets interface under different conditions, are presented. Micro and macro observation of the such obtained joints permitted to investigate the effects of such process on the overall joint performance.

yearjournalcountryeditionlanguage
2007-01-01
10.1063/1.2729603http://hdl.handle.net/10447/28954