Transformation During Aging of Niobium-Rich Carbides in Cast Heat-Resistant Alloys

被引：1
|
作者：
Ortega-Reyes, Rosa [1 ]
Haro-Rodriguez, Sergio [2 ]
Sustaita-Torres, Ireri A. [2 ]
Gonzalez, Francisco A. Perez [1 ]
Ramirez-Ramirez, Javier H. [1 ]
Garza-Montes-De-Oca, Nelson F. [1 ]
Colas, Rafael [1 ]
机构：
[1] Univ Autonoma Nuevo Leon, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66455, Nuevo Leon, Mexico
[2] Univ Autonoma Zacatecas, Unidad Acad Ingn, Zacatecas 98000, Zacatecas, Mexico
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2022年 / 53卷 / 09期
关键词：
AUSTENITIC STAINLESS-STEELS; NB-BEARING SUPERALLOYS; G-PHASE; MICROSTRUCTURE; SOLIDIFICATION; ADDITIONS; SERVICE; CREEP; TI;
D O I：
10.1007/s11661-022-06753-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The changes occurring in two heat-resistant alloys while aged at 750 degrees C for different periods of time were studied. Aging promoted precipitation of secondary M23C6 carbides and transformation of Nb-rich, which were evaluated by SEM. The results show that transformation of the NbC starts from their boundaries to their centre by silicon diffusion; carbon was detected to migrate from these particles promoting precipitation of secondary Cr-rich carbides in regions adjacent to the Nb-rich particles.
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收藏
页码：3232 / 3238
页数：7
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