Numerical and Experimental Investigation of the Effects of Thin Hard Coatings on the Strength of Spur Gears. J. Mater. Sci. Technol. Res. [Internet]. 2025 Oct. 2 [cited 2025 Oct. 5];9:74-86. Available from: https://www.zealpress.com/index.php/jmstr/article/view/455