PMID- 35683108
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220716
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 15
IP  - 11
DP  - 2022 May 27
TI  - Mechanical and Microstructural Properties of HDPE Pipes Manufactured via Orbital 
      Friction Stir Welding.
LID - 10.3390/ma15113810 [doi]
LID - 3810
AB  - In recent decades, extensive research has been performed on the friction stir 
      welding of flat-shaped materials while pipe welding, particularly polymer pipes, 
      still encounters challenging issues. This work presents a feasible route for 
      joining high-density polyethylene (HDPE) pipes using an orbital friction stir 
      welding (OFSW) set-up properly designed with a retractable pin tool. Fully 
      consolidated joints were achieved using a portable heating-assisted OFSW system 
      suited for on-site pipeline welding. The obtained joined pipes were characterized 
      by a high-quality weld surface and a lack of defects arising from the tool-pin 
      hole. The samples welded with the optimum parameters presented comparable 
      properties with the base materials and even a slight increase in the tensile 
      strength. The highest tensile and impact strengths were 14.4 MPa and 2.45 
      kJ/m(2), respectively, which is 105% and 89% of those of the base material. XRD, 
      FTIR, and SEM were also applied to assess the property changes in the HDPE pipes 
      after the FSW process. The morphological analysis evidenced that the crystalline 
      structure of the welded sample was similar to that of the base material, proving 
      the effectiveness of the proposed technology.
FAU - Mehdikhani, Hesam
AU  - Mehdikhani H
AD  - Faculty of Mechanical Engineering, University of Tabriz, Tabriz P.O. Box 
      51666-16471, Iran.
FAU - Mostafapour, Amir
AU  - Mostafapour A
AD  - Faculty of Mechanical Engineering, University of Tabriz, Tabriz P.O. Box 
      51666-16471, Iran.
FAU - Laieghi, Hossein
AU  - Laieghi H
AUID- ORCID: 0000-0002-8470-662X
AD  - Department of Mechanical Engineering, Gazi University, Ankara 06570, Turkey.
AD  - Additive Manufacturing Technologies Research and Application Center-EKTAM, Gazi 
      University, Ankara 06560, Turkey.
FAU - Najjar, Reza
AU  - Najjar R
AD  - Polymer Research Laboratory, Faculty of Chemistry, University of Tabriz, Tabriz 
      P.O. Box 51666-16471, Iran.
FAU - Lionetto, Francesca
AU  - Lionetto F
AUID- ORCID: 0000-0003-4466-1161
AD  - Department of Engineering for Innovation, University of Salento, Via Monteroni, 
      73100 Lecce, Italy.
LA  - eng
PT  - Journal Article
DEP - 20220527
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC9180996
OTO - NOTNLM
OT  - HDPE pipe
OT  - mechanical properties
OT  - microstructural evaluation
OT  - morphology
OT  - orbital friction stir welding (OFSW)
OT  - tool design
COIS- The authors declare no conflict of interest.
EDAT- 2022/06/11 06:00
MHDA- 2022/06/11 06:01
PMCR- 2022/05/27
CRDT- 2022/06/10 01:17
PHST- 2022/04/13 00:00 [received]
PHST- 2022/05/17 00:00 [revised]
PHST- 2022/05/25 00:00 [accepted]
PHST- 2022/06/10 01:17 [entrez]
PHST- 2022/06/11 06:00 [pubmed]
PHST- 2022/06/11 06:01 [medline]
PHST- 2022/05/27 00:00 [pmc-release]
AID - ma15113810 [pii]
AID - materials-15-03810 [pii]
AID - 10.3390/ma15113810 [doi]
PST - epublish
SO  - Materials (Basel). 2022 May 27;15(11):3810. doi: 10.3390/ma15113810.