Load and abrasive size effects on the high write cast iron with 19,9% chromium and 2,9% carbon wear

Abstract:

In this research the effects of different applied load and abrasive size on the
martensitic high-chromium write cast iron (with a chemical composition: 2,9% carbon and 19,9% chromium) wear was investigated. Abrasive wear tests using a pin test on silica and garnet paper were carried out using three different abrasives sizes: 63 μm, 149 μm e 177 μm and two applied load: 5 N e 10 N. And the rubber wheel abrasion test (ASTM standard G-65) was carried out using three abrasives sizes: 87 μm, 115 μm e 170 μm and three applied loads: 44 N, 80 N e 130 N. The results of the pin test on silica paper show a change in the magnitude of the volume lost in wear abrasion by varying the applied load of 5 N to 10 N. In rubbers wheel abrasion test were observed that the mass loss of the write cast iron alloy increases linearly with the increase of particle size until the critical particle size is reached. In general, the mass loss increases with the increase of the load applied and the abrasive size.


Reference:
TOZETTI, Karla Dubberstein; ALBERTIN, Eduardo; SCANDIAN, Cherlio. Efeito da carga e do tamanho do grão abrasivo no desgaste do ferro fundido branco 19,9% cromo e 2,9% carbono. In: CONGRESSO ANUAL DA ABM; ABM INTERNATIONAL ANNUAL CONGRESS, 68., 2013, Belo Horizonte. Anais… 12 p.

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