Enhancement of fatigue resistance using the accelerated diffusion/sintering phenomenon near beta transus temperature in Ti-6Al-4V powder metallurgy alloy

2019 ◽  
Vol 165 ◽  
pp. 1-5
Author(s):  
P. Kumar ◽  
K.S. Ravi Chandran
Keyword(s):  
Powder Metallurgy ◽  
Fatigue Resistance ◽  
Beta Transus ◽  
Powder Metallurgy Alloy ◽  
Transus Temperature ◽  
Diffusion Sintering

On development of hypoeutectic aluminium–silicon powder metallurgy alloy

2011 ◽  
Vol 54 (3) ◽  
pp. 432-439 ◽  
Author(s):  
W G Mosher ◽  
G J Kipouros ◽  
W F Caley ◽  
I W Donaldson ◽  
D P Bishop
Keyword(s):  
Powder Metallurgy ◽  
Silicon Powder ◽  
Powder Metallurgy Alloy

scholarly journals Different Formation Routes of Pore Structure in Aluminum Powder Metallurgy Alloy

Materials ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 3724 ◽  
Author(s):  
Jana Bidulská ◽  
Róbert Bidulský ◽  
Marco Actis Grande ◽  
Tibor Kvačkaj
Keyword(s):  
Plastic Deformation ◽  
Powder Metallurgy ◽  
Pore Structure ◽  
Structure Parameters ◽  
Technological Solution ◽  
Porosity Evolution ◽  
Angular Pressing ◽  
Pore Structures ◽  
Powder Metallurgy Alloy ◽  
Size And Morphology

In powder metallurgy (PM), severe plastic deformation (SPD) is a well-known technological solution to achieve interesting properties. However, the occurrence of pores in the final product may limit these properties. Also, for a given type of microstructure, the stereometric parameters of the pore structures, such as shape (represented by Aspect and Dcircle) and distribution (fshape, and fcircle), decisively affect the final properties. The influence of different processing routes (pressing, sintering and equal channel angular pressing (ECAP)) on pore structures in an aluminum PM alloy is discussed. The nature of porosity, porosity evolution and its behavior is explored. The correlation between pore size and morphology is also considered. The final pore structure parameters (Aspect, Dcircle, fshape, and fcircle) of studied aluminum alloys produced by different processing routes depends on the different formation routes.

scholarly journals Effect of Mn on microstructure and properties of Cu-12Al powder metallurgy alloy

2020 ◽  
Vol 7 (1) ◽  
pp. 016546
Author(s):  
Guofei Zhang ◽  
Haiqing Yin ◽  
Cong Zhang ◽  
Zhenghua Deng ◽  
Ruijie Zhang ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Microstructure And Properties ◽  
Powder Metallurgy Alloy

Microstructural Study of Newly Designed Ti-6Al-1Fe Alloy through Deformation

2017 ◽  
Vol 264 ◽  
pp. 54-57
Author(s):  
Ayad Omran Abdalla ◽  
Astuty Amrin ◽  
Roslina Mohammad ◽  
M.A. Azmah Hanim
Keyword(s):  
Titanium Alloy ◽  
Cold Rolling ◽  
Hot Rolling ◽  
Lamellar Microstructure ◽  
Ti Alloy ◽  
Beta Transus ◽  
Complete Replacement ◽  
Microstructural Study ◽  
Equiaxed Microstructure ◽  
Transus Temperature

Recently, iron (Fe) is introduced to substitute vanadium (V) in Ti-alloy. Therefore, new (α+β) titanium alloy, Ti-6Al-1Fe was designed through a complete replacement of V by Fe with major composition modifications of Ti-6Al-4V. This new alloy is believed could provide similar properties of Ti-6Al-4V through modification of its microstructures. Different heat treatments can lead to a diversity of microstructural permutations and combinations. Thus, it is very crucial to study in-depth understanding about the microstructure of Ti-6Al-1Fe. Results reveal that the microstructure of as-received alloy is a typical fine lamellar microstructure. The bi-modal microstructure can be obtained by hot rolling below beta-transus temperature (Tβ) followed by recrystallization treatment at 925°C. While cold rolling followed by recrystallization treatment at 925°C produce equiaxed microstructure.

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