scholarly journals Effect of Pre-Oxidation Treatment of Nano-SiC Particulates on Microstructure and Mechanical Properties of SiC/Mg-8Al-1Sn Composites Fabricated by Powder Metallurgy Combined with Hot Extrusion

Materials ◽  
2016 ◽  
Vol 9 (12) ◽  
pp. 964 ◽  
Author(s):  
Chuan-Peng Li ◽  
Zhi-Guo Wang ◽  
Min Zha ◽  
Cheng Wang ◽  
Hong-Chen Yu ◽  
...  
2010 ◽  
Vol 146-147 ◽  
pp. 734-737
Author(s):  
Hui Yu ◽  
Hua Shun Yu ◽  
Zhen Ya Zhang ◽  
Guang Hui Min ◽  
Cheng Chen

In this study, AZ91 and SiC particulates reinforced AZ91 (SiCp/AZ91) magnesium alloys were successfully fabricated using rapid solidification/powder metallurgy technique followed by hot extrusion. Microstructural evolution and mechanical properties of the monolithic AZ91 and SiCp/AZ91 magnesium alloys were evaluated. SiC particulates were well distributed with only few agglomerated particles. The porosity level and microhardness increased as SiCp content increased because the increased surface area of SiCp, harder ceramic phases and SiCp acted obstacles to the motion of dislocations. In addition, an increase in particulate reinforcement content was observed to decrease mechanical properties of the composite compared with the unreinforced counterpart due to increasing agglomerating regions and porosity, brittle interface debonding between matrix and SiCp.


Author(s):  
P. Babaghorbani ◽  
M. Gupta

The manufacturing techniques of powder metallurgy and casting were used to synthesize a Sn-3.5Ag followed by hot extrusion. In the sintering step of powder metallurgy, two routes of conventional and microwave sintering were investigated. Physical, microstructural, thermomechanical and mechanical properties of the developed solders were examined. These studies revealed that the best combination of the properties is realized from the Sn-3.5Ag synthesized using powder metallurgy incorporating microwave sintering route. An attempt is made to correlate processing-microstructure-properties relationship for Sn-3.5Ag.


2021 ◽  
pp. 100184
Author(s):  
Gyanendra Bhatta ◽  
Luis De Los Santos Valladares ◽  
Xinggang Liu ◽  
Zhaojun Ma ◽  
A. Bustamante Domínguez ◽  
...  

2016 ◽  
Vol 22 (S3) ◽  
pp. 1990-1991
Author(s):  
C.G. Garay-Reyes ◽  
M. A. Ruiz-Esparza-Rodríguez ◽  
E. Cuadros-Lugo ◽  
H. M. Medrano-Prieto ◽  
I. Estrada-Guel ◽  
...  

Author(s):  
Md Mehtab Alam and B.S Motgi

The paper deals with detailed study on microstructure and mechanical properties of aluminum 7068 reinforced with fly ash and silicon carbide by powder metallurgy, aluminum 7068, silicon carbide and fly ash were taken in powder form of required size and mixed together in varying proportion according to specification and compacted with pressure of 400MPa using hydraulic press to make samples and then samples were sintered at 600°c for 2 hours, the samples were tested for density, compressive strength, hardness and microstructure was analyzed using scanning electron microscope, energy dispersive x-ray study was carried out in order to confirm presence of silicon carbide and fly ash in aluminum matrix.


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