Effect of Interface Strength of M_(23)C6 in Steel Matrix on Tensile Toughness and Strength

摘要

Using methods which are applied for estimating strength and toughness of composites reduces rate of trial-and-error in their design. One of the mechanisms for strengthening and increasing toughness of composites is application of reinforcement pull-out mechanism. Interface strength of reinforcement with matrix and effective surface of pulled-out greatly affect toughness and strength of these types of materials. In this study, a model was proposed to estimate interface and matrix strength of composites and share in increasing tensile toughness and strength. Then, strength of interface and its share in increasing tensile toughness and strength were calculated in a case study of composites containing M_(23)C6 particle reinforcement in matrix of 1.2542 tool steel.