Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 6    No. 4    December 1996

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MECHANICAL PROPERTIES AND MICROSTRUCTURES OF Ti(C,N) BASED CERMETS
Liu Ning1, Hu Zhenhua2, Cui Kun2, Liu Canlou3

1.Department of Materials Science and Engineering, Anhui Institute of Technology,Hefei230069
2.Huazhong University of Science and Technology, Wuhan 430074
3.Beijing General Research Institute for Iron and Steel, Beijing100081

Abstract:The mechanical properties and microstructure of Ti(C, N) based cermets have been studied. The experimental results have shown that the cermets investigated are of good mechanical properties, and their microstructures consist of ceramics and metals. The ceramics in cermets are divided into two types depending on their diameter sizes. Small particle ceramics with diameter less than 0.7μm is the single ceramics (Ti, W, Mo)(C, N), and the large one with diameter greater than 1μm consists of core and rim, in which case the core is pure TiC and the rim is (Ti, W, Mo)(C, N). This work suggests that the core and rim have the same crystal structure, lattice parameter and orientation. An orientation relationship between the ceramics and metals has also been found.

 

Key words: Ti(C, N) based cermets mechanical properties microstructure

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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