Effect of the ion nitriding and carbonitriding in the wear resistance of chromium coating electroplated - Muñoz Riofano, Rosamel Melita; Casteletti, Luiz Carlos; Benassi, Carlos; Tremiliosi Filho, Germano; Bento, Carlos Alberto da Silva (Congresso Brasileiro de Engenharia Mecânica - COBEM, 2001)