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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   JULY 2017 , Volume 17 , Number 4 ; Page(s) 52 To 60.
 
Paper: 

EXPERIMENTAL INVESTIGATION OF THE EFFECT OF TEMPERATURE IN EXTRUSION PROCESS OF ECAPED NANOSTRUCTURED TITANIUM

 
 
Author(s):  EFTEKHARI MOHAMMAD, FARAJI GHADER*, SHAPOORGAN OMID, BANIASSADI MAJID
 
* DEPARTMENT OF MECHANICAL ENGINEERING, TEHRAN UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Today, many researchers focus on proposing severe plastic deformation (SPD) methods due to the superior mechanical and physical properties of achieved ultra-fine grain material. In all SPD methods a large strain is implied without any substantial dimensional change of work piece to generate UFG and even nanograin (NG) materials. Equal Channel Angular Pressing (ECAP) is one of the most successful techniques for industrial applications. Using a long and thin rod is limited in ECAP process. In the present study, a combined process composed of ECAP and Extrusion processes is used on Titanium grade 2. Titanium is extensively used in aviation and other industries because of its high strength to weight value. Using the combined process leads to production of long length and thin nanostructured rod. The main goal of this process is evaluation of the temperature in Extrusion process on nanostructures Titanium rods. At first, Titanium rods were processed for 4 passes by ECAP process at 400oC and then they were processed by Extrusion process at 5 different temperatures including 300, 350, 400, 450 and 500oC. The result showed that the best mechanical properties achieved for the specimen were extruded at 300oC. Strength and hardness were severely improved. Also, the microstructure was very homogenous and refined. The mechanical properties of titanium grade 2 after combined process were equivalent to titanium grade 5 which is used in medical applications and is expensive.

 
Keyword(s): SPD, ECAP, EXTRUSION, TITANIUM, MECHANICAL PROPERTIES, TEMPERATURE
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

EFTEKHARI, M., & FARAJI, G., & SHAPOORGAN, O., & BANIASSADI, M. (2017). EXPERIMENTAL INVESTIGATION OF THE EFFECT OF TEMPERATURE IN EXTRUSION PROCESS OF ECAPED NANOSTRUCTURED TITANIUM. MODARES MECHANICAL ENGINEERING, 17(4 ), 52-60. https://www.sid.ir/en/journal/ViewPaper.aspx?id=572632



Vancouver: Copy

EFTEKHARI MOHAMMAD, FARAJI GHADER, SHAPOORGAN OMID, BANIASSADI MAJID. EXPERIMENTAL INVESTIGATION OF THE EFFECT OF TEMPERATURE IN EXTRUSION PROCESS OF ECAPED NANOSTRUCTURED TITANIUM. MODARES MECHANICAL ENGINEERING. 2017 [cited 2021July28];17(4 ):52-60. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572632



IEEE: Copy

EFTEKHARI, M., FARAJI, G., SHAPOORGAN, O., BANIASSADI, M., 2017. EXPERIMENTAL INVESTIGATION OF THE EFFECT OF TEMPERATURE IN EXTRUSION PROCESS OF ECAPED NANOSTRUCTURED TITANIUM. MODARES MECHANICAL ENGINEERING, [online] 17(4 ), pp.52-60. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572632.



 
 
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