Influence of Copper Addition on Mechanical Properties and Microstructure of Eutectic Al-12Si-Xcu Alloy Produced Through Powder Metallurgy Process

2020 ◽  
Vol 05 (02) ◽  
pp. 1-5
Author(s):  
Dolon Kumar Das ◽  
Ranjit Barua ◽  
Sudipto Datta
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Copper Addition ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

Characterization and Properties of Copper-Silica Sand Nanoparticle Composites

2011 ◽  
Vol 319-320 ◽  
pp. 95-105 ◽  
Author(s):  
Tahir Ahmad ◽  
Othman Mamat
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Plastic Deformation ◽  
Powder Metallurgy ◽  
Silica Sand ◽  
Prealloyed Powder ◽  
Powder Metallurgy Process ◽  
Rearrangement Mechanism ◽  
Nanoparticle Composites ◽  
Metallurgy Process

Copper-based microcomposites fabricated by powder metallurgy with subsequent plastic deformation have received increasing attention over recent years. These microcomposites possess good electrical conductivity in combination with high mechanical properties. The present study aims to explore potential technical merits in developing a prealloyed powder metallurgy copper based composites with silica sand nanoparticles reinforcement. Relevant mechanical properties and electrical conductivity improvements are the main targets. A copper based composite with 5, 10, 15 and 20 wt.% of silica sand nanoparticles were developed through the powder metallurgy process. It was observed that by addition of silica sand nanoparticles with 20% increased the hardness up to 143HV. Optimum electrical conductivity of the composites was achieved in the 15 wt.% silica sand nanoparticles. Advanced particle rearrangement mechanism due to homogeneous and fine distribution of silica sand nanoparticles into pore sites of the composites was also observed. The silica sand nanoparticles composites properties that are much more surface-related seen to be improved convincingly compared with the bulk controlled.

scholarly journals Mechanical Properties of Mg2Si/Mg Composites via Powder Metallurgy Process

2003 ◽  
Vol 46 (3) ◽  
pp. 247-250 ◽  
Author(s):  
Hiroshi MURAMATSU ◽  
Katsuyoshi KONDOH ◽  
Eiji YUASA ◽  
Tatsuhiko AIZAWA
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

Corrosion Behavior of Fe-Mn-C Alloy as Degradable Materials Candidate Fabricated via Powder Metallurgy Process

2012 ◽  
Vol 576 ◽  
pp. 386-389 ◽  
Author(s):  
Sri Harjanto ◽  
Yudha Pratesa ◽  
Bambang Suharno ◽  
Junaidi Syarif
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Austenite Phase ◽  
Coronary Stents ◽  
Powder Metallurgy Process ◽  
Degradable Biomaterials ◽  
Degradable Materials ◽  
Metallurgy Process

Fe-Mn alloys are prospective degradable materials for coronary stents. Several methods and strategies are investigated to produce excellence properties for this application, such as addition of alloying elements. The study is focused on the corrosion behavior of novel Fe-Mn alloys, i.e. Fe-25Mn-1C and Fe-35Mn-1C fabricated by powder metallurgy process. Addition of carbon is intended to obtain the phase that has ability to easily degradable without compromising its mechanical properties. The results show that austenite phase formed from this process and corrosion rate increased in proportion with the manganese addition from 32.2 mpy (Fe-25Mn-1C) to 43.7 mpy (Fe-35Mn-1C) using polarization methods. The presence of porosity, which cannot be extinguished by sintering, makes the degradation favorable. The results of this study indicate that these alloys have prospective properties to be applied as degradable biomaterials.

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