학술논문
Nanostructural Analyses of Intra- and Intergranular Precipitates in High-temperature Heat-treated Nitrogen-added Austenitic Stainless Steel / 高温熱処理を施した窒素添加オーステナイト系ステンレス鋼中析出物のナノ構造解析
Document Type
Journal Article
Author
Source
鉄と鋼 / Tetsu-to-Hagane. 2019, 105(4):418
Subject
Language
Japanese
ISSN
0021-1575
1883-2954
1883-2954
Abstract
More than one thousand intragranular and intergranular precipitates of nitrogen-added austenitic stainless steel, SUSXM15J1, were characterized by FIB-SEM serial-sectioning tomography, by conventional transmission electron microscopy (TEM) and by scanning transmission electron microscopy (STEM). All of intragranular precipitates were found nitrided to form dichromium nitride, Cr2N, Two types of intergranular precipitates were found Cr2N and Cr3Ni2Si(N), and some of them were grown and jointed due to the additional heat treatment during the tensile test at 1173 K. which probably contributed to its high-temperature strength.