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Relationship Between Test Severity and Wear Mode Transition in Micro-abrasive Wear Tests by R.C. Cozza; J.D.B. de Mello; D.K. Tanaka; R.M. Souza is a Engineering article available to read on EtoBox.

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Recently, the micro-scale abrasive wear test has gained large acceptance in universities and research centers, being widely used in studies on the abrasive wear of materials. The purpose of this work is to relate a quantity called test severity (S test ) with the abrasive wear mode transition. The analysis took into consideration the hardness of the materials; the contact pressure (P) between the specimen and the ball and the equipment configuration (fixed-ball or free-ball). Tests were conducted with balls of AISI 52100 steel and specimens of ISO P20 cemented carbide (WC-Co) and AISI M2 tool steel. The abrasive slurry was prepared with black silicon carbide (SiC) particles (average particle size of 5 m) and distilled water. The results were analyzed in plots of S test and A g /A p as a function of test time (t) and V as a function of P, where A g is the projected area fraction with grooving abrasion; A p the total projected area and V is the volume of the worn crater. The results allowed observing that the value of S test decreased from the beginning to the end of all tests. When the results obtained with fixed-ball and free-ball equipment were compared, this decrease in S test wa

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Author

R.C. Cozza; J.D.B. de Mello; D.K. Tanaka; R.M. Souza

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0043-1648)

Published

2007

Language

EN

Field

Engineering (Physical Sciences)