고체입자 충돌침식으로 인한 배관 재질의 손상에 관한 연구
A Study of Damage on the Pipe Flow Materials Caused by Solid Particle Erosion
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초록
Wall thinning can be classified into three types: flow-accelerated corrosion, cavitation erosion and solidparticle erosion. This article presents a study of solid particle erosion, which frequently causes damagesto power plants’ pipe system. Unlike previous studies, this study uses a mechanism to make solid particlesin a fluid flow collide with pipe materials in underwater condition. Experiment is conducted in three casesof velocity according to solid-water ratio using the three types of the materials of A106B, SS400, andA6061. The experiments were performed for 30 days, and the surface morphology and hardness of thematerials were examined for every 7 days. Based on the velocity change of the solid particles in a fluidflow, the surface changes, the change in the amount of erosion, the erosion rate and the variation in thehardness of carbon steel and aluminum family pipe materials can all be determined. In addition, factorbasederosion rates are verified and a wall-thinning relation function is suggested for the pipe materials
Abstract
Wall thinning can be classified into three types: flow-accelerated corrosion, cavitation erosion and solidparticle erosion. This article presents a study of solid particle erosion, which frequently causes damagesto power plants’ pipe system. Unlike previous studies, this study uses a mechanism to make solid particlesin a fluid flow collide with pipe materials in underwater condition. Experiment is conducted in three casesof velocity according to solid-water ratio using the three types of the materials of A106B, SS400, andA6061. The experiments were performed for 30 days, and the surface morphology and hardness of thematerials were examined for every 7 days. Based on the velocity change of the solid particles in a fluidflow, the surface changes, the change in the amount of erosion, the erosion rate and the variation in thehardness of carbon steel and aluminum family pipe materials can all be determined. In addition, factorbasederosion rates are verified and a wall-thinning relation function is suggested for the pipe materials
참고문헌 (11)
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