On the Ductile Behavior of Nominally Brittle Materials During Erosive Cutting

[+] Author and Article Information
G. L. Sheldon

Washington State University, Pullman, Wash.

I. Finnie

University of California, Berkeley, Calif.

J. Eng. Ind 88(4), 387-392 (Nov 01, 1966) (6 pages) doi:10.1115/1.3672666 History: Received July 09, 1965; Online December 08, 2011


It is known that nominally brittle materials may exhibit plastic deformation in indentation, scratching, and microcutting when the loaded region is sufficiently small. The present investigation is concerned with the erosive cutting of nominally brittle materials by the impact of a stream of solid particles and it is shown that ductile behavior should be observed when the particle size and velocity are within certain limits. Experiments on a number of nominally brittle materials confirm this prediction; the ductile behavior being inferred from both the rippled appearance of the eroded surface and the variation of volume removal with angle of impingement.

Copyright © 1966 by ASME
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