Kinetics of Austenitic Nitriding and Properties of Ni - Co - Cr - W - Ti Alloy

被引：1
|
作者：
Akhmedzyanov, M., V [1 ]
Ovsepyan, S., V [1 ]
Rodin, A. O. [2 ]
Lomberg, B. S. [1 ]
Rastorgueva, O., I [1 ]
机构：
[1] Kurchatov Inst Res Ctr VIAM, Moscow, Russia
[2] NITU MISiS, Moscow, Russia
来源：
METAL SCIENCE AND HEAT TREATMENT | 2022年 / 64卷 / 3-4期
关键词：
nitriding; nitrides; structure; heat-resistant nickel alloy; phase; thermochemical treatment; kinetics; strength; INTERNAL NITRIDATION;
D O I：
10.1007/s11041-022-00790-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The kinetics of high-temperature nitriding and changes in the structure and properties of heat-resistant Ni - Co - Cr - W - Ti nickel alloy VZh171 depending on its duration were studied. Short-term pulling and long-term strength tests were carried out. An analysis of the microstructure of a nitrided case is presented along with a mathematical description of the process. Recommendations are given for determining the optimal nitriding conditions of the VZh171 alloy in order to achieve the highest short-term and long-term strength. The established dependencies allow the nitriding time during the course of manufacturing items of various thicknesses from the VZh171 alloy to be determined.
引用
收藏
页码：231 / 235
页数：5
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