Bending Strength of Cast Materials Reinforced with Hard Particles

Setsuo Aso; Hiroyuki Ike; Ken-Ichi Ohguchi; Yoshinari Komastu; Nobuo Konishi

doi:10.4028/www.scientific.net/KEM.457.404

Paper Titles

Mechanical Properties and Thermal Expansion Characteristics of Low Thermal Expansion Ductile Cast Iron with same Nickel Equivalent (NiE)
p.380

Effect of Copper Addition on Mechanical Properties of Nodular Indefinite Chilled Iron (NICI)
p.386

Notch Effects on Impact and Bending Characteristics of Spheroidal Graphite and Compacted Vermicular Graphite Cast Irons with Various Matrices
p.392

Effects of Graphite Shape on Thermal Fatigue Property of Thin Wall Graphitic Cast Irons
p.398

Bending Strength of Cast Materials Reinforced with Hard Particles
p.404

Literature Survey on Porosity and Microporosity in Cast Irons Related to Expansion and Gas Entrapment Phenomena
p.410

On the Formation of Shrinkage Porosity in Gray Iron Castings
p.416

Surface Turbulence at Flow of Gray Cast Iron
p.422

Suppression of Elevated Temperature Brittleness in Spheroidal Graphite Cast Iron by Increasing Phosphorus Content
p.428

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Bending Strength of Cast Materials Reinforced with Hard Particles

Abstract:

Particle reinforcement via the insertion of hard particles is a promising process in materials reinforcing. Particle-reinforced spheroidal graphite martensitic cast iron (SGMC), in which mixed particles of cermet and cemented carbide are dispersed, was achieved by an insertion process. A four-point bending strength test was applied to evaluate the particle composite material. An evaporative pattern process was used on the bending-test specimen to form a composite layer in the central part. Using a combination of three sizes of cermet particles and two sizes of cemented-carbide particles, the bending strength was found to increase with each small-particle combination. The Weibull coefficient m of the four-point bending strength of the particle-reinforced composite material (PRCM) ranged from 4 to 13, and m was large in the specimen with large bending strength.