Mechanical and Wear Behaviour of Hot-Pressed 304 stainless Steel Matrix Composites Containing TiB2 Particles

Abstract

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Production and characterization of AISI 316L stainless steel matrix hybrid composites reinforced with boron carbide and carbon nanotubes

“…(1) thermal mismatch between matrix and reinforcing elements, (2) inhibition of dislocation motion caused by dispersion strengthening as a result of the Orowan looping, (3) grain refinement caused by homogeneous dispersion of fine particles, and (4) shear lag models describing the mechanisms of load transfer from the matrix to the reinforcements. 25–28…”

“…(1) thermal mismatch between matrix and reinforcing elements, (2) inhibition of dislocation motion caused by dispersion strengthening as a result of the Orowan looping, (3) grain refinement caused by homogeneous dispersion of fine particles, and (4) shear lag models describing the mechanisms of load transfer from the matrix to the reinforcements. [25][26][27][28] The effect of thermal mismatch between matrix and reinforcements on strength can be explained by the Arsenault model. 25 According to this model, when there is a difference between the thermal expansion coefficients of the matrix and the reinforcement element, the dislocation density increases at the matrix/reinforcement interface and work hardening occurs in the matrix material.…”

Powder metallurgy processed TiB2-reinforced steel matrix composites: a review

“…Sahoo and her group [135] evaluated the enhancement of yield strength of SMCs reinforced with different contents of TiB 2 by using different strengthening mechanisms (as shown in Figure 11). They reported the predominance effect of thermal mismatch strengthening due to increase in thermal strain and density of geometric dislocation.…”