1978
DOI: 10.1016/0043-1648(78)90147-3
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On the velocity dependence of the erosion of ductile metals by solid particles at low angles of incidence

Abstract: TWO-WEEK LOAN COpy This is a Librar~ Circulating Cop~ which ma~ be borrowed for two weeks. For a personal retention cop~, call Tech. Info. D iuision, Ext. '51f6 fa 79;~ DISCLAIMER This document was prepared as an account of work sponsored by the United States Government.

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Cited by 242 publications
(97 citation statements)
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“…An important feature of the theory is its prediction that erosion should depend on the cube of the impact velocity. Velocity exponents reported for the erosion of metals at normal incidence tend in general to be higher than the values of 2.3 -2.4 commonly found in low-angle erosion experiments (34). Velocity exponents from the literature are listed in Table 2; it is noteworthy that values of around 3 are often found for erosion by both angular and spherical particles at normal incidence, although there is some variation.…”
Section: A Comparison Of Theory With Experimentsmentioning
confidence: 97%
“…An important feature of the theory is its prediction that erosion should depend on the cube of the impact velocity. Velocity exponents reported for the erosion of metals at normal incidence tend in general to be higher than the values of 2.3 -2.4 commonly found in low-angle erosion experiments (34). Velocity exponents from the literature are listed in Table 2; it is noteworthy that values of around 3 are often found for erosion by both angular and spherical particles at normal incidence, although there is some variation.…”
Section: A Comparison Of Theory With Experimentsmentioning
confidence: 97%
“…This assumption was used in the present work. A number of mechanisms of base metal erosion have been proposed, the two most common are the cutting mechanism of Finnie 19;20;21;22 and the wear and deformation mechanism of Bitter 23;24. While Bitter's model of erosion is one of the most complete, the number of material dependent constants make it nearly impossible to use in most practical situations.…”
Section: Erosion Modelingmentioning
confidence: 99%
“…The mechanisms were based on a micromachining concept where the impacting particle penetrates the target a small amount, translates along the surface removing material ahead of it in a machining mode and finally leaves the surface. 4 A refined model was developed for this mechanism by Finnie that utilized the equation of motion of the particle tip to define an amount of target 5 material that was removed.' The scanning electron microscope (SEM) with its capability to achieve great depth of field at high magnifications makes it possible to observe what is physically happening on an eroding surface.…”
mentioning
confidence: 99%