Análise de textura da LIGA 600 após processamento por ECAP e tratamentos térmicos

Abstract

X-ray diffractometry is an important technique of materials characterization. It can be used for qualitative analysis, revealing phases and crystalline structure or quantitative, which can reveal composition, grain size (crystallite) and preferential orientation (texture). In this work the crystallographic texture (deformation and annealing) of the nickel superalloy, Inconel 600 (alloy 600), was analyzed after ECAP processing, Equal Channel Angular Pressing, and subsequent heat treatments. Crystallographic Planes {111}, {200} and {220} were analyzed due to the FCC structure of the material, in the normal direction to the cross-section. The analysis of the sample of 3 passes without heat treatment returned a texture associated with the planes and directions {111} <110>. For the annealed samples an evolution in the texture attached to the planes and directions {113} <110>, <101> <110> and <332> <110> was identified and a texture variation attached to the planes and directions {223} <110 > and {332} <110>. 23o CBECiMat Congresso Brasileiro de Engenharia e Ciência dos Materiais 04 a 08 de Novembro de 2018, Foz do Iguaçu, PR, Brasil