Aspects regarding the influence of the processing regime on the surface quality of thermal sprayed coatings

8th International Conference on Advanced Concepts in Mechanical Engineering

Stescu, C.^1 ; Chicet, D.L.^2 ; Munteanu, C.^1 ; Istrate, B.^1 ; Benchea, M.^1 ; Basescu, G.-N.^1

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^1

Materials Science and Engineering, Materials Science Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^2

关键词: Chemical compositions;    Electronic microscopy;    Mechanical machining;    Method of processing;    Processing regimes;    Protecting the surface;    Thermal spray coatings;    Thermal sprayed coating;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/3/032012/pdf
DOI  :  10.1088/1757-899X/444/3/032012

来源: IOP

【 摘 要 】

Thermal spray coatings are increasingly gaining ground in their use for various applications: protecting the surfaces from stresses, temperatures, corrosive or abrasive environments at various temperatures, repairing surfaces and providing new features, etc. One of the important operations in defining the role that a thermal spray layer will have is finishing the surface after coating by mechanical machining. In this paper the surfaces of five thermal coated samples mechanically finished by two different methods were studied. Surface morphology was observed by electronic microscopy, the appearance being correlated with the micro-hardness and roughness of these surfaces before and after processing. It was observed that the choice of the method of processing depends on the hardness of the surface and its chemical composition.