Abstract
Due to their enhanced tribological properties that contribute to an increased useful life of components, martensitic stainless steels are an excellent option for industrial applications such as hydroelectric, petrochemical, civil construction and mineral processing plants. In the present investigation, the erosive wear of AISI 410 martensitic stainless steel is evaluated after thermal treatment by quenching and tempering by mass loss, under erosive attack at 30° and 90° incidence angles, using a self-made jet slurry erosion equipment controlling parameters such as speed, volume of fluid, temperature and concentration of erosive particles of erodent. The characterization of the eroded samples was carried out in terms of the microstructure (SEM) and microhardness as well as the particle size distribution (LG) and morphology of the erodent. It was possible to establish the relationship between the slurry erosive wear and the physical properties inherent of stainless steel for this particular experimental configuration, concluding that the steel presents better resistance to jet slurry erosion wear when compared to austenitic steel commonly used in the industry.
Highlights
In different industrial applications, such as hydraulic turbines in hydroelectric plants, petrochemical industry, construction, and in the processing of minerals, the loss of metal due to slurry erosion caused by the particulate material in the liquid represents a major industrial problem affecting the life of the components and reducing their performance
Due to their enhanced tribological properties that contribute to an increased useful life of components, martensitic stainless steels are an excellent option for industrial applications such as hydroelectric, petrochemical, civil construction and mineral processing plants
The erosive wear of AISI 410 martensitic stainless steel is evaluated after thermal treatment by quenching and tempering by mass loss, under erosive attack at 30◦ and 90◦ incidence angles, using a self-made jet slurry erosion equipment controlling parameters such as speed, volume of fluid, temperature and concentration of erosive particles of erodent
Summary
In different industrial applications, such as hydraulic turbines in hydroelectric plants, petrochemical industry, construction, and in the processing of minerals, the loss of metal due to slurry erosion caused by the particulate material in the liquid represents a major industrial problem affecting the life of the components and reducing their performance. Among the different alternatives for such applications, the most current being studied is the austenitic and martensitic stainless steels. Under the mechanical action of hard particles, they present a high plastic deformation and wear [1]. Martensitic stainless steel presents better mechanical resistance to erosive particles than austenitic steel, with the compromise of a lower corrosion resistance [2,3,4,5]
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