Abrasive Wear Behavior of Hybrid Metal Matrix Composites

Song, Juhun; Bae, Sung In; Ham, Kyung Chun; Han, Kap Su

doi:10.4028/www.scientific.net/kem.183-187.1267

Cited by 3 publications

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“…12 Moreover, some studies have focused on the hybrid effect on the mechanical properties of whisker/particle hybrid metal matrix composites. [13][14][15] Local reinforcement of materials produces lighter components and improves performance in the area required under service conditions. For example, in the brake disc application, ductile aluminium alloy which has high fracture toughness supports the whole disc and the reinforced part by ceramic particles/whiskers is used in the area required (e.g.…”

Section: Introductionmentioning

confidence: 99%

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al₂O₃ whiskers under monotonic and cyclic load

Rafiquzzaman¹,

Arai²,

Tsuchida³

2008

Materials Science and Technology

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In the present paper, fracture mechanisms and corresponding stress distributions in aluminium cast alloy locally reinforced by SiC particles and Al 2 O 3 whiskers under monotonic and cyclic load are investigated experimentally and numerically. The material is monotonically and cyclically deformed to failure at room temperature. The fracture origin and the fracture path are investigated on the fracture surfaces. The fracture occurs in the reinforced part under both monotonic and cyclic loads. Scanning electron microscope (SEM) analysis of fracture surface shows that the fatigue fracture is controlled by the fracture of coarse Al 2 O 3 whiskers. The static fracture (monotonic loading) shows that the fracture mechanism is the combination of reinforcing particle fracture and interfacial debonding between reinforcing ceramics and matrix metal. The stress distributions around the boundary between the reinforced part and the unreinforced part are calculated based on an inclusion array model considering the microscopic inhomogeneous effects. Both the experimental results and the finite element simulation show that the critical location for fracture is changed by the external stress level which controls the local stress distribution through plastic constraint between reinforcing particle and matrix alloy.

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Section: Introductionmentioning

confidence: 99%

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al₂O₃ whiskers under monotonic and cyclic load

Rafiquzzaman¹,

Arai²,

Tsuchida³

2008

Materials Science and Technology

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Wear properties of Saffil/Al, Saffil/Al2O3/Al and Saffil/SiC/Al hybrid metal matrix composites

Han

Song

2004

Wear

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Application of the ASTM Loop Abrasion Test to Cylindrical Specimens

Truhan

Blau

2005

Journal of Testing and Evaluation

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The loop abrasion test (based on ASTM G 174-03) was modified to accommodate cylindrical specimens in place of the usual flat specimens. Hardened AISI 52100 steel, a galling-resistant stainless steel (Nitronic 50), transformation-toughened zirconia ceramic, and an advanced composite containing Ni3Al and TiC (cermet) were used to validate the new testing geometry. The weight change and the scar width were measured, and the calculated wear volumes for each metric were compared with very good correlation. Each test was interrupted periodically in order to determine the effect of sliding distance on the wear rate. In general, a higher wear rate was observed during wear-in followed by a nearly constant steady-state wear rate. The initial high wear rate was contributed primarily by the fresh abrasive and secondarily by the high contact stress. The loop abrasion test has good repeatability and sensitivity for ranking materials. The abrasion resistance of both the cermet and the zirconia was much higher than that of Nitronic 50 and hardened 52100 steel. Even though the hardness of the cermet is lower than zirconia, it had the highest abrasion resistance in this study. Comparative tests on cylindrical and traditional flat specimens (per ASTM G 174-03) showed similar wear behavior with slightly higher wear rate for the cylindrical specimens due to higher contact stress.

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Abrasive Wear Behavior of Hybrid Metal Matrix Composites

Cited by 3 publications

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Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al₂O₃ whiskers under monotonic and cyclic load

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al₂O₃ whiskers under monotonic and cyclic load

Wear properties of Saffil/Al, Saffil/Al2O3/Al and Saffil/SiC/Al hybrid metal matrix composites

Application of the ASTM Loop Abrasion Test to Cylindrical Specimens

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Abrasive Wear Behavior of Hybrid Metal Matrix Composites

Cited by 3 publications

References 0 publications

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al2O3 whiskers under monotonic and cyclic load

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al2O3 whiskers under monotonic and cyclic load

Wear properties of Saffil/Al, Saffil/Al2O3/Al and Saffil/SiC/Al hybrid metal matrix composites

Application of the ASTM Loop Abrasion Test to Cylindrical Specimens

Contact Info

Product

Resources

About

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al₂O₃ whiskers under monotonic and cyclic load

Fracture mechanisms of aluminium cast alloy locally reinforced by SiC particles and Al₂O₃ whiskers under monotonic and cyclic load