Structure and properties of the precipitation-hardening Ti–Nb–C material with a binder

被引：0
|
作者：
O. S. Manakova
V. V. Kurbatkina
E. A. Levashov
机构：
[1] National University of Science and Technology “MISiS”,
[2] Scientific-and-Educational Center of Self-Propagating High-Temperature Synthesis MISiS–ISMAN (National University of Science and Technology “MISiS”–Institute of Structural Macrokinetics,undefined
[3] Russian Academy of Sciences),undefined
来源：
Russian Journal of Non-Ferrous Metals | 2015年 / 56卷
关键词：
precipitation-hardening ceramic materials; self-propagating high-temperature synthesis (SHS); phase composition; structure; strength; heat resistance;
D O I：
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中图分类号：
学科分类号：
摘要：
The influence of a metallic nickel-based binder on the structure and properties of the (Ti, Nb)C ceramic material is investigated. The samples are fabricated according to the SHS forced compaction technology with subsequent thermal treatment in a vacuum furnace at 850°C for 1 h. The composition and structure of fabricated samples were investigated by XRD, SEM, and EDS. Supersaturated solid solutions based on (Ti, Nb)C carbide decompose after annealing with the formation of nanodimensional NbCo2, Ni3NbAl, and Ni2NbAl phases. The β-(Ti, Nb) solid solution is a dispersed phase at a low binder content (5%) and the (Cr, Al) solid solution is a dispersed phase at a binder content of 20%. Properties of fabricated materials such as density, porosity, hardness, strength, and heat resistance are determined. The precipitation-hardening material of the Ti–Nb–C system with binder contents of 20 and 30% is recommended for the application as the constructive and functional ceramics.
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页码：486 / 491
页数：5
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