After the war "Alagoas" was assigned to the newly formed Alto Uruguai Flotilla, based at Itaqui. In the 1880s the ship's armament was reinforced with a pair of machine guns. "Alagoas" was transferred to Rio de Janeiro in the 1890s and joined the rebels in the Fleet Revolt of 1893–94. Her engines had been removed by this point and she had to be towed into position to fire on the government forts. She was scrapped in 1900.