STABILITY OF COMPLEX NITRIDES IN HEAT RESISTANT STEELS

被引：0
|
作者：
Vodarek, Vlastimil [1 ]
Holesinsky, Jan [1 ]
机构：
[1] VSB Tech Univ Ostrava, Ostrava, Czech Republic
来源：
21ST INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2012) | 2012年
关键词：
heat-resistant steels; precipitation; nitrides; TEM; PRECIPITATION; EVOLUTION;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of two levels of niobium (0.1 and 0.3wt.% Nb) in AISI 316LN austenitic steels and intentional additions of nickel (0.5 and 1.15wt% Ni) to 12CrMoVNbN martensitic steels on precipitation reactions was studied. Minor phase evolution at temperatures 475-650 degrees C was studied on creep ruptured specimens with times to rupture extending up to 220,000 hours. Thermodynamic and dimensional stability of nitrogen rich Z-phase and M6X (Cr3Ni2SiX type) precipitates in dependence on chemical composition of steels and the temperature of exposure was investigated.
引用
收藏
页码：490 / 496
页数：7
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