{"title":"Simulation Studies of Solid-Particle and Liquid-Drop Erosion of NiAl Alloy","authors":"Rong Liu, Kuiying Chen, Ju Chen, Jingrong Zhao, Ming Liang","volume":101,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":460,"pagesEnd":468,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10001184","abstract":"
This article presents modeling studies of NiAl alloy
\r\nunder solid-particle erosion and liquid-drop erosion. In the
\r\nsolid-particle erosion simulation, attention is paid to the oxide scale
\r\nthickness variation on the alloy in high-temperature erosion
\r\nenvironments. The erosion damage is assumed to be deformation wear
\r\nand cutting wear mechanisms, incorporating the influence of the oxide
\r\nscale on the eroded surface; thus the instantaneous oxide thickness is
\r\nthe result of synergetic effect of erosion and oxidation. For liquid-drop
\r\nerosion, special interest is in investigating the effects of drop velocity
\r\nand drop size on the damage of the target surface. The models of
\r\nimpact stress wave, mean depth of penetration, and maximum depth of
\r\nerosion rate (Max DER) are employed to develop various maps for
\r\nNiAl alloy, including target thickness vs. drop size (diameter), rate of
\r\nmean depth of penetration (MDRP) vs. drop impact velocity, and
\r\ndamage threshold velocity (DTV) vs. drop size.<\/p>\r\n","references":"[1] P. J. Blau, Friction and Wear Transitions of Materials. Noyes\r\nPublications: Park Ridge, 1989.\r\n[2] G. S. Springer, Erosion by Liquid Impact. John Wiley & Sons Inc.:\r\nWashington D.C., 1976.\r\n[3] I. Finnie, \u201cErosion of surfaces by solid particles,\u201d Wear, vol. 3, pp. 87-103,\r\n1960.\r\n[4] J. G. A. Bitter, \u201cA study of erosion phenomena, Part I,\u201d Wear, vol. 6, no.\r\n1, pp. 5-21, 1963.\r\n[5] J. G. A. Bitter, \u201cA study of erosion phenomena, Part II,\u201d Wear, vol. 6, no.\r\n3, pp. 169-190, 1963.\r\n[6] J. H. Neilson and A. Gilchrist, \u201cErosion by a stream of solid particles,\u201d\r\nWear, vol. 11, no. 2, pp. 111-122, 1968.\r\n[7] G. Sundararajan, \u201cAn analysis of the erosion-oxidation interaction\r\nmechanisms,\u201d Wear, vol. 145, no. 2, pp. 251\u2013282, 1991.\r\n[8] S. Hogmark, A. Hammersten, and S. 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