Corrosion of an Aluminum Matrix Composite in situ Based on Al–7Si–1Fe Alloy

2020 ◽  
Vol 61 (1) ◽  
pp. 108-111
Author(s):  
A. B. Finkelstein ◽  
A. V. Shak ◽  
A. A. Schaefer
Keyword(s):  
Matrix Composite ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite

Fabrication and analysis of anti-corrosion coatings on in-situ TiB2p reinforced aluminum matrix composite

2008 ◽  
Vol 203 (3-4) ◽  
pp. 329-334 ◽  
Author(s):  
Huanhuan Sun ◽  
Naiheng Ma ◽  
Dong Chen ◽  
Xianfeng Li ◽  
Haowei Wang
Keyword(s):  
Matrix Composite ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite

Fabrication of Al2O3 Particle Reinforced Aluminum Matrix Composite by In Situ Chemical Reaction

2014 ◽  
Vol 915-916 ◽  
pp. 788-791 ◽  
Author(s):  
Bin Sui ◽  
Jian Min Zeng ◽  
Ping Chen ◽  
Wu Kui Gan ◽  
Jin Bo Lu
Keyword(s):  
Grain Boundary ◽  
Matrix Composite ◽  
Chemical Reaction ◽  
Glass Powder ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Al Matrix Composite ◽  
Al Matrix

A new Al2O3particle reinforced Al matrix composite was fabricated through in-situ chemical reaction between Al and glass powder. The microstructures and element distributions of the composite were observed and analyzed through OM, SEM and EDS, respectively. The results show the reinforced Al2O3particle synthesized by in-situ chemical reaction are aggregated on the grain boundary. The grains can be refined with the increasing of powder. Eutectic silicone with granulous shape was found in the microstructure, which attributes to the modification of Na and Ca to eutectic silicone.

scholarly journals Microstructure and Wear Resistance of TiB2/7075 Composites Produced via Rheocasting

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1068
Author(s):  
Qian Gao ◽  
Bin Yang ◽  
Guisheng Gan ◽  
Yujie Zhong ◽  
Liang Sun ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloy ◽  
Matrix Composite ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Aluminum Matrix Composites ◽  
7075 Aluminum Alloy ◽  
Tib2 Particles ◽  
Better Than

In this study, TiB2/7075 aluminum matrix composites were prepared via in situ synthesis. It was found that TiB2 particles are mainly quadrate. Large TiB2 particles (1–2 μm) agglomerate at grain boundaries, but most of the particles are on the submicron scale. Adding 4.5 wt.% TiB2 particles effectively optimizes α-Al grains in the 7075 aluminum alloy. By combining in situ reinforcing particles with the self-stirring effect of a serpentuator, rheocasting of the 7075 aluminum alloy was achieved in a simple and economical way. The average grain size of the specimen after rheocasting and heat treatment was smaller than 33 μm, and the shape factors were greater than 0.85. The wear resistance of the 4.5 wt.% TiB2/7075 aluminum matrix composite that was prepared via rheocasting and gravity casting was tested with loads of 30, 60, 90, and 120 N at a friction speed of 0.15 m/s for a duration of 30 min. Because of the optimized microstructure and increased hardness, the wear resistance of the 4.5 wt.% TiB2/7075 aluminum matrix composite was significantly better than that of the 7075 aluminum alloy, and the wear resistance of the rheocast TiB2/7075 aluminum matrix composite was better than that of the gravity cast one.

Sign in / Sign up

Export Citation Format

Share Document