Lopes, Henrique Solowej MedeirosMoreto, Jeferson AparecidoManfrinato, Marcos DorigãoDa Cruz, Nilson Cipriano [UNESP]Rangel, Elidiane Cipriano [UNESP]Rossino, Luciana Sgarbi2018-12-112018-12-112016-05-01Materials Research, v. 19, n. 3, p. 686-694, 2016.1516-1439http://hdl.handle.net/11449/178041P20 steel, which is mainly used in plastic molds, was thermochemically treated by ion plasma nitriding and solid and gas carburization. In this work, the solid and gas carburization were performed at 925 °C for four different durations. The ion plasma nitriding was performed at 520 °C for four different durations. The thermochemical treatment increased the micro abrasive wear resistance of the studied material. The gas carburizing treatment resulted in a greater surface microhardness. Longer treatment times increased the effectiveness of the thickness layer in all cases. The solid carburization produced a larger thickness layer than the gas carburization and ion nitriding.686-694engGas carburizingIon plasma nitridingMicro-abrasive wearP20 steelSolid carburizingArtigo10.1590/1980-5373-MR-2015-0721S1516-14392016000300686Acesso aberto2-s2.0-84971006615S1516-14392016000300686.pdf