Plasma-Assisted Surface Modification of Two-Phase Intermetallic Alloy Composed of Ni3X Type Structures

被引：0
作者：
Kaneno, Y. [1 ]
Matsumoto, N. [1 ]
Tsuji, N.
Tanaka, S.
Takasugi, T. [1 ]
机构：
[1] Osaka Prefecture Univ, Dept Mat Sci, Naka Ku, 1-1 Gakuen Cho, Osaka 5998531, Japan
来源：
ADVANCED INTERMETALLIC-BASED ALLOYS FOR EXTREME ENVIRONMENT AND ENERGY APPLICATIONS | 2009年 / 1128卷
关键词：
V TYPE STRUCTURES; AL; TI;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A two-phase intermetallic alloy composed of Ni3Al (L1(2)) and Ni3V (D0(22)) was plasma-nitrided or -carburized in dependence of temperature and time. It was found that the hardness of the surface layer of the present intermetallic alloy was enhanced by both plasma-nitriding (PN) and -carburizing (PC), and primarily depended on treating temperature; the maximum surface hardness of the alloy was shown by nitriding at around 850 K and by carburizing at 1025 K. In addition, the hardened layers due to PN and PC effectively kept their hardness up to a high temperature. The XRD analysis revealed that vanadium nitride (VN) and vanadium carbide (VC) were formed in the surface of the nitrided and carburized alloy, respectively, suggesting that the enhanced surface hardness was attributed to the dispersion hardening due to the nitrides and carbides.
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页码：251 / +
页数：2
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