Effect of metallic binder content on the microhardness of TiCN-based cermets

被引：33

作者：

Gong, JH ^{[1
]}

Pan, XT

Miao, HZ

Zhao, Z

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

[2] Univ Stockholm, Arrhenius Lab, Dept Inorgan Chem, SE-10691 Stockholm, Sweden

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 359卷 / 1-2期

关键词：

microhardness; indentation size effect; TiCN-based cermets; metallic binders;

D O I：

10.1016/S0921-5093(03)00396-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microhardness testing was conducted on a series of TiCN-based cermets with different contents of metallic binders in the applied load range from 0.49 to 9.8 N. Significant indentation size effect (ISE) in the measured microhardness was observed for each test sample. The traditional Meyer's law and the modified proportional specimen resistance (MPSR) model were employed to analyze the load-dependence of the measured hardness. It was found that the Meyer's exponent n increases with the metallic binder content, implying that increasing the metallic binder content would restrain the ISE. The load-independent hardness was found to decrease with the increasing metallic binder content. This can be attributed to the fact that the hardness of metallic binder is lower than that of the TiCN matrix. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：391 / 395

页数：5

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