Phase transformation induced high-strength titanium carbide reinforced stainless steel composites with stable thermo-mechanical properties for high temperature applications

Abstract

The high-temperature properties such as the tensile strength, hardness, coefficient of thermal expansion (CTE), and thermal conductivity of titanium carbide (TiC)-reinforced stainless steel (SS) matrix composites fabricated by the infiltration process were investigated at various temperatures. Highly concentrated, closely adjacent TiC particulate reinforcement effectively suppressed dramatic variations in the CTE and thermal conductivity properties originating from the phase transformation of the SS431 matrix with superior mechanical properties. The strengthening effect of the addition of TiC increased as the temperature increased and showed a higher value after the phase transformation. The TiC–SS431 composite showed great applicability for advanced high-temperature-resistant structural materials.

Ceramic–Metal (Cermet) Composites: A Review of Key Properties and Synthesis Methods Focused on Nuclear Waste Immobilization

“…In this plot, composites located in the lower-right quadrant are desirable, and material discovery efforts should be expended to reveal as such. Composite compositions and references from Figure are captured in Table S3 (Supporting Information). − Similar to thermal conductivity, it is also useful to model the coefficient of thermal expansion (CTE) for a given composite. Several models have been proposed to predict the CTE of the particle containing composites and are listed in Table , where α c is the linear CTE, V is the volume fraction, K is the bulk modulus, and G is the shear modulus.…”