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Paper Titles
Ultra-High-Hardness (Ti, W)C Matrix Metal Ceramics Prepared through Combustion Synthesis under High Gravity
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Fracture Toughness of CNTs/AlN Ceramics Tested by Indentation
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Microhardness of Various Bullet-Proof Ceramics
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High Temperature Creep Behavior of In Situ TiC/Ni Composites
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DEM Simulation of Machining Damage in SiC Pre-Stressing Cutting Process
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High Temperature Creep Behavior of In Situ TiC/Ni Composites

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Abstract:

A 70 wt% TiC particulate reinforced Ni matrix composite was in-situ synthesized using self-propagating high-temperature synthesis and combined with pseudo heat isostatic pressing technique. The nearly spherical TiC particle reinforcements were uniformly distributed in the Ni matrix and most of the carbide grains were of 3-4 μm in diameter. Creep behavior of the TiC/Ni composites had been investigated in ambient atmosphere under constant load tensile tests. The stress exponent values of 7.69 and 6.62 were obtained at 923 K and 1023 K, respectively. The creep fracture should be initiated by a mixture of particle cracking, interface debonding and void nucleating, while interface debonding was dominant fracture at high temperature.

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Periodical:

Advanced Materials Research (Volume 177)

Pages:

157-160

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.177.157

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Online since:

December 2010

Authors:

Bin Li, Zong De Liu, Song Wang, Yong Chen

Keywords:

Creep, Fracture, Microstructure, TiC-Ni Composite

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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