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

علوم کاربردی و محاسباتی در مکانیک

Articles in Press, Accepted Manuscript, Available Online from 12 July 2025   

Document Type: Original Article

DOI: 10.22067/jacsm.2025.90568.1295

Authors

Mostafa Baran pour¹; Meisam Mohammadi^{* 2}; Afshin Iranmanesh³

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

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

³Department of Civil Engineering, Vali-e-Asr University of Rafsanjan

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

References