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Title: New Materials Design Through Friction Stir Processing Techniques

Abstract

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 to 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, carried 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.

Authors:
;  [1];  [2]
  1. Dipartimento di Tecnologia Meccanica, Produzione e Ingegneria Gestionale, Universita di Palermo, Viale delle Scienze 90128 Palermo (Italy)
  2. Ohio State University, Department of Industrial, Welding and Systems Engineering, 1971 Neil Avenue, 210 Baker Systems, Columbus, Ohio 43210 (United States)
Publication Date:
OSTI Identifier:
21057080
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729603; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM ALLOYS; COMPOSITE MATERIALS; CRYSTAL STRUCTURE; DESIGN; FRICTION; INTERFACES; MICROSTRUCTURE; PERFORMANCE; PROCESSING; SHEETS; SOLIDS; STRAIN RATE; WELDED JOINTS; WELDING

Citation Formats

Buffa, G., Fratini, L., and Shivpuri, R. New Materials Design Through Friction Stir Processing Techniques. United States: N. p., 2007. Web. doi:10.1063/1.2729603.
Buffa, G., Fratini, L., & Shivpuri, R. New Materials Design Through Friction Stir Processing Techniques. United States. doi:10.1063/1.2729603.
Buffa, G., Fratini, L., and Shivpuri, R. Sat . "New Materials Design Through Friction Stir Processing Techniques". United States. doi:10.1063/1.2729603.
@article{osti_21057080,
title = {New Materials Design Through Friction Stir Processing Techniques},
author = {Buffa, G. and Fratini, L. and Shivpuri, R.},
abstractNote = {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 to 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, carried 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.},
doi = {10.1063/1.2729603},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}