A Mathematical Model for Abrasive Erosion Wear in Composite Fe-Based Matrix With Wc-Co Reinforcement

Abstract

This paper presents a new functional-computational model for metal-matrix composites (MMC), specifically for coatings with coarse spherical WC-Co reinforcement. We have developed, simulated and optimized the model based on previous classical approximations. The experimental data to validate this model are the laboratory tribotest-abrasion measurements and complementary appropriate numerical reports published internationally. Programming software was designed both with nonlinear optimization and curve-fitting subroutines. Results comprise the model construction from theory to computational validation on the laboratory statistical and numerical database. Additional simulations/optimization related to other models are also shown together with conceptual details of the next generation of functional models.

Modeling, Integration, and Automation of Degradation to Generate Asset Lifespan Analytics Using

“…Each degradation mechanism amongst corrosion, erosion, and fatigue has different sets of mathematical models that an analyst may employ to estimate its degradation rate and, thereafter, the lifespan of the member subjected to that degradation mechanism. In their works, many researchers have either stated mathematic models for asset lifespan estimation (ASM International, 2020; Ebeling, 1997;Elfergani et al, 2017;Jones, 1996;Kececi, 2019;Levy, 1995;Obi, 2008;Okonkwo, 2014) or have advanced numerous mathematical formulas with which lifespan of asset members subjected to the specified degradation mechanism can be computed (Casesnoves et al, 2017;Kosa et al, 2017;Levy et al, 1983;Stack et al, 1995). The primary purpose of the AssessLIFE software is to estimate the life of a machine or structural member, given the use conditions of the part or member.…”

“…Erosion can be described as the continuous removal of tiny pieces of the target alloy by either a rapidly flowing turbulent fluid or by solid particles transported by the fluid. Many researchers (Casesnoves et al, 2017;Kosa et al, 2017;Levy, 1995;Levy et al, 1983, Okonkwo, 2014Stack et al, 1995) modeled and advanced mathematical formulation of the degradation caused by erosion. A model of the erosion attack on alloys was postulated via the works of Okonkwo (2014) and Wada et al (1987) as…”