Experimental and numerical investigation of fracture toughness and abrasion resistance of thermal spray coated surfaces

Document Type : Original Article

Authors

Mostafa Baran pour ¹

Meisam Mohammadi ²

Afshin Iranmanesh ¹

¹ Department of Mechanical Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran.

² Department of Mechanical Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

10.22067/jacsm.2025.90568.1295

Abstract

Fracture toughness is one of the most important factors in engineering designs. Hence, for designing, repair and maintenance of devices in abrasive, corrosive and oxidative environments, thermal spray method is used for coating the surfaces of devices. For determining the toughness of coated parts, and depending on the loading condition and material properties, different methods are used in industries. In the present study, ASTM standard is applied for determining the test samples conditions and also KIC as the toughness parameter is investigated. Thermal spray test is used for coating the surfaces where the effect of different factors in spraying is considered. Latter, finite element analysis using the relevant software is utilized for simulating and analyzing the fracture toughness of coated samples. Finally, the results of empirical tests and finite element method are compared and the effects of coating methods and coating parameters are investigated in details for the first time.

Keywords

ASTM standard

Thermal spray method

Fracture toughness

Finite element solution

Abrasion

Corrosion

Subjects

• Solid mechanics

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