scholarly journals Effect of preform processing conditions on microstructure and properties of Al2O3, Ti particle dispersed Mg matrix composite fabricated by pressureless infiltration method

2010 ◽  
Vol 60 (8) ◽  
pp. 403-408 ◽  
Author(s):  
Makoto Kobashi ◽  
Yoichi Fukuda ◽  
Naoyuki Kanetake
Keyword(s):  
Matrix Composite ◽  
Pressureless Infiltration ◽  
Processing Conditions ◽  
Microstructure And Properties ◽  
Infiltration Method

Microstructure and properties of Ti-Al-Sn-Zr-Nb-Si matrix composite reinforced with in-situ TiC and Ti5Si3 prepared by powder metallurgy

2019 ◽  
Vol 6 (10) ◽  
pp. 1065b3 ◽  
Author(s):  
Xiaojing Xu ◽  
Chong Li ◽  
Vitus Mwinteribo Tabie ◽  
Saifu Wang ◽  
Chengbin Cai ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Matrix Composite ◽  
Microstructure And Properties ◽  
In Situ Tic

Fabrication of BN/Al(-Mg) Metal Matrix Composite (MMC) by Pressureless Infiltration Technique

2004 ◽  
Vol 449-452 ◽  
pp. 301-304
Author(s):  
Woo Gwang Jung ◽  
Hoon Kwon
Keyword(s):  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Al Alloy ◽  
Pressureless Infiltration ◽  
Reaction Products ◽  
Thermodynamic Investigation ◽  
The Matrix ◽  
Infiltration Technique ◽  
Plate Type

BN/Al(-Mg) metal matrix composite (MMC) was fabricated by the pressureless infiltration technique. The phase characterizations of the composites were analyzed using the SEM, TEM, EDS and EPMA on reaction products after the electrochemical dissolution of the matrix. It is confirmed that aluminum nitride (AlN) was formed by the reaction of Mg3N2and Al alloy melt. Plate type AlN and polyhedral type Mg(-Al) boride were formed by the reaction between Mg2N2, BN and molten Al in the composite. The reaction mechanism in the fabrication of BN/Al(-Mg)MMC was derived from the phase analysis results and the thermodynamic investigation.

Microstructure and Oxidation of Al/BN Composites Fabricated by the Pressureless Infiltration Method

2006 ◽  
Vol 522-523 ◽  
pp. 657-664 ◽  
Author(s):  
Dong Bok Lee
Keyword(s):  
Metal Matrix Composites ◽  
Oxidation Resistance ◽  
Metal Matrix ◽  
Pressureless Infiltration ◽  
Matrix Composites ◽  
Infiltration Method ◽  
Al Matrix

Metal matrix composites (MMCs) consisting of an Al matrix reinforced with initially added BN particles and newly formed AlN dispersoids were fabricated using the pressureless infiltration method. This method led to the incorporation of Mg and nitrogen into the Al matrix. In the retained BN dispersoids, the depletion of nitrogen and enrichment of Al and Mg occurred. The more Mg available, the more AlN formed in the MMCs. The oxidation resistance of the prepared MMCs at 773 and 823 K in air was not satisfactory, owing to the formation of MgO-rich scale. Mg, which was used as an infiltration enhancer precursor, oxidized preferentially, and thereby decreased the oxidation resistance of the prepared MMCs.

Ti/B4C Composites Prepared by In Situ Reaction Using Inductive Hot Pressing

2017 ◽  
Vol 742 ◽  
pp. 121-128 ◽  
Author(s):  
Enrique Ariza Galván ◽  
Isabel Montealegre-Meléndez ◽  
Cristina Arévalo ◽  
Michael Kitzmantel ◽  
Erich Neubauer
Keyword(s):  
Mechanical Properties ◽  
Hot Pressing ◽  
Manufacturing Process ◽  
Processing Conditions ◽  
Microstructure And Properties ◽  
Microstructure Observation ◽  
Suitable Processing

In the present work, in situ reinforced titanium composites (TMCs) synthesized using inductive hot pressing (iHP) are studied. The effects of B4C phases and applied processing conditions, on the microstructure and properties of TMCs, are investigated. With the addition of B4C particles, the microstructure of TMCs is refined and the strength is improved.Products of reactions which occur during the manufacturing process are analysed in detail. Microstructure observation illustrates, that B4C survives - depending on the processing conditions. The reinforcing phases are homogeneously distributed in Ti matrix. Moreover, results of densification, mechanical properties and hardness measurements help to identify the most suitable processing conditions to produce this kind of TMCs.

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