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Paper Information

Journal:   JOURNAL OF ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS   JUNE 2017 , Volume 50 , Number 1; Page(s) 16 To 22.
 
Paper: 

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 TUBES FABRICATED BY MULTI-PASS PARALLEL TUBULAR CHANNEL ANGULAR PRESSING

 
 
Author(s):  ABDOLVAND HOOMAN, FARAJI GHADER*, SHAHBAZI KARAMI JAVAD
 
* SCHOOL OF MECHANICAL ENGINEERING, COLLEGE OF ENGINEERING, UNIVERSITY OF TEHRAN, TEHRAN, 11155-4563, IRAN
 
Abstract: 

Parallel Tubular Channel Angular Pressing (PTCAP) process is a novel recently developed severe plastic deformation (SPD) method for producing ultrafine grained (UFG) and nanograined (NG) tubular specimens with excellent mechanical and physical properties. This process has several advantageous compared to its TCAP counterparts. In this paper, a fine grained AZ91 tube was fabricated via multi pass parallel tubular channel angular pressing (PTCAP) process. Tubes were processed up to three passes PTCAP at 300 °C. Evolution of microstructure, mechanical properties and fracture behavior of the processed tubes after different passes were evaluated. Hardness, strength, and elongation were increased for processed tubes. Mean grain size was notably reduced to 3.8 mm for the tube which processed three passes from a 150 mm for the unprocessed tube. The maximum strength was found for second passes PTCAP processed tube which increased considerably about 108 %. The strength of the first pass processed tube increased about 62.5%. Increasing in elongation at room temperature was occurred, too. Mechanical properties of the third pass processed tube were deteriorated relatively because of appearing microcracks on the surface. Also, the hardness improved and it was increased about 77%. The result showed that the achieved mechanical properties consistent with microstructure.

 
Keyword(s): PTCAP, MECHANICAL BEHAVIOR, AZ91, TUBE, GRAIN REFINEMENT
 
 
References: 
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Click to Cite.
APA: Copy

ABDOLVAND, H., & FARAJI, G., & SHAHBAZI KARAMI, J. (2017). MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 TUBES FABRICATED BY MULTI-PASS PARALLEL TUBULAR CHANNEL ANGULAR PRESSING. JOURNAL OF ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, 50(1), 16-22. https://www.sid.ir/en/journal/ViewPaper.aspx?id=570849



Vancouver: Copy

ABDOLVAND HOOMAN, FARAJI GHADER, SHAHBAZI KARAMI JAVAD. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 TUBES FABRICATED BY MULTI-PASS PARALLEL TUBULAR CHANNEL ANGULAR PRESSING. JOURNAL OF ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS. 2017 [cited 2021May12];50(1):16-22. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=570849



IEEE: Copy

ABDOLVAND, H., FARAJI, G., SHAHBAZI KARAMI, J., 2017. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AZ91 TUBES FABRICATED BY MULTI-PASS PARALLEL TUBULAR CHANNEL ANGULAR PRESSING. JOURNAL OF ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, [online] 50(1), pp.16-22. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=570849.



 
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