scholarly journals Microstructure And Mechanical Properties Of Al-WC Composites

2015 ◽  
Vol 60 (2) ◽  
pp. 1517-1521 ◽  
Author(s):  
A. Simon ◽  
D. Lipusz ◽  
P. Baumli ◽  
P. Balint ◽  
G. Kaptay ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Research Work ◽  
Synthesis Process ◽  
Al Alloy ◽  
Matrix Composites ◽  
Weak Interface ◽  
Microstructure And Mechanical Properties ◽  
Al Matrix Composites ◽  
Interface Bond

Abstract The scope of the research work is the production and characterization of Al matrix composites reinforced with WC ceramic nanoparticles. The synthesis process was powder metallurgy. The produced composites were examined as far as their microstructure and mechanical properties (resistance to wear, micro/macrohardness). Intermetallic phases (Al12W and Al2Cu) were identified in the microstrucutre. Al4C3 was not detected in the composites. Adding more than 5 wt% WC to the aluminum, microhardness and wear resistance exceed the values of Al alloy. Composites having weak interface bond performed the highest wear rate.

Microstructure and Mechanical Properties of Reaction Squeeze Cast Hybrid Al Matrix Composites

2001 ◽  
Vol 35 (17) ◽  
pp. 1570-1586
Author(s):  
Changwook Son ◽  
Ikwoo Kim ◽  
Ikmin Park ◽  
Kyung-Mox Cho ◽  
Ildong Choi
Keyword(s):  
Mechanical Properties ◽  
Matrix Composites ◽  
Squeeze Cast ◽  
Microstructure And Mechanical Properties ◽  
Al Matrix Composites ◽  
Al Matrix

Microstructure and Mechanical Properties of Reaction Squeeze Cast Hybrid Al Matrix Composites

2001 ◽  
Vol 35 (17) ◽  
pp. 1570-1586 ◽  
Author(s):  
Changwook Son ◽  
Ikwoo Kim ◽  
Ikmin Park ◽  
Kyung-Mox Cho ◽  
Ildong Choi
Keyword(s):  
Mechanical Properties ◽  
Matrix Composites ◽  
Squeeze Cast ◽  
Microstructure And Mechanical Properties ◽  
Al Matrix Composites ◽  
Al Matrix

scholarly journals Effect of Ti Addition on the Microstructure and Mechanical Properties of SiC Matrix Composites Infiltrated by Al–Si (10 wt.%)–xTi Alloy

Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 318
Author(s):  
Yajun Yu ◽  
An Du ◽  
Xue Zhao ◽  
Yongzhe Fan ◽  
Ruina Ma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Intermetallic Compounds ◽  
Bending Strength ◽  
Al Alloys ◽  
Al Alloy ◽  
Matrix Composites ◽  
Sic Ceramics ◽  
Microstructure And Mechanical Properties ◽  
Ti Addition

This paper proposes a simple reactive melt infiltration process to improve the mechanical properties of silicon carbide (SiC) ceramics. SiC matrix composites were infiltrated by Al–Si (10 wt.%)–xTi melts at 900 °C for 4 h. The effects of Ti addition on the microstructure and mechanical properties of the composites were investigated. The results showed that the three-point bending strength, fracture toughness (by single-edge notched beam test), and fracture toughness (by Vickers indentation method) of the SiC ceramics increased most by 34.3%, 48.5%, and 128.5%, respectively, following an infiltration with the Al–Si (10 wt.%)–Ti (15 wt.%) melt. A distinct white reaction layer mainly containing a Ti3Si(Al)C2 phase was formed on the surface of the composites infiltrated by Al alloys containing Ti. Ti–Al intermetallic compounds were scattered in the inner regions of the composites. With the increase in the Ti content (from 0 to 15 wt.%) in the Al alloy, the relative contents of Ti3Si(Al)C2 and Ti–Al intermetallic compounds increased. Compared with the fabricated composite infiltrated by an Al alloy without Ti, the fabricated composites infiltrated by Al alloys containing Ti showed improved overall mechanical properties owing to formation of higher relative content Ti3Si(Al)C2 phase and small amounts of Ti–Al intermetallic compounds.

Synthesis, microstructure, and mechanical properties of in situ TiB2/Al-4.5Cu composites

2018 ◽  
Vol 25 (3) ◽  
pp. 453-462 ◽  
Author(s):  
Hongying Li ◽  
Shouxin Zhao ◽  
Yangxun Ou ◽  
Yongqiu Lai
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Yield Strength ◽  
Particle Distribution ◽  
Matrix Composites ◽  
Strengthening Mechanisms ◽  
Microstructure And Mechanical Properties ◽  
Al Matrix Composites ◽  
Al Matrix

Abstract In situ TiB2/Al-4.5Cu composites with different TiB2 particle amounts were fabricated by the salt-metal reaction technique. The effects of in situ TiB2 on the microstructure and mechanical properties of Al-4.5Cu alloy were studied in this paper. The results showed that in situ TiB2 particles had significant effect on refining grain size and improving mechanical properties of as-cast Al-4.5Cu alloy. With the amounts of TiB2 particles increasing, the yield strength and ultimate tensile strength were improved, while the elongation reduced. The strengthening mechanisms of the in situ particle-reinforcing Al matrix composites were discussed, and the yield strength was predicted accurately by accounting for the three strengthening mechanisms and particle distribution.

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