Análise de textura em aços maraging 300 solubilizado em altas temperaturas

Abstract

Maraging steels are ultra-high resistance steels with applications, from vessels of high pressure of operation in critical processes to sportive equipment. currently, maraging steels with 18% of ni are the most used. They can be provided in classes 200, 250, 300 and 350. This study used steel maraging 300, that was treated thermically in upper solubility temperatures of the conventional, with the aim of improving tenacity to the fracture without losses significance of mechanical resistance. The solution annealing in temperatures above recommended by the manufacturers (820 ° c) results in grain growth austenic, which has been very accented above 1000 ° c. maraging steel, when deformed, develops a texture that is enough reduced by solution annealing, which destroys the rolling texture. Analysis of the crystallographic orientation of the material. For that, x-ray difference was made in the samples. Watched that the texture of turned cube persists, after solution annealing, in different intensities. Fiber fiber does not continue after the thermal treatments of solution annealing.".