A method to calculate the bulk hardness of metal matrix composite using Hadfield steel reinforced with niobium carbide particles as an example

被引：12

作者：

Ma, Liang ^{[1
]}

Huang, Cheng ^{[1
]}

Dolman, Kevin ^{[2
]}

Tang, Xinhu ^{[2
]}

Yang, Jianjun ^{[1
]}

Shi, Zheng ^{[1
]}

Liu, Zhong-Sheng ^{[1
]}

机构：

[1] Natl Res Council Canada, Energy Min & Environm Portfolio, 4250 Wesbrook Mall, Vancouver, BC V6T 1W5, Canada

[2] Weir Minerals Australia Ltd, 1 Marden St, Artarmon, NSW 2064, Australia

来源：

MECHANICS OF MATERIALS | 2017年 / 112卷

关键词：

Metal matrix composite; Microstructure; Hardness; Finite element method; Hadfield steel; Niobiuin carbide; Representative equivalent volume; SURFACES;

D O I：

10.1016/j.mechmat.2017.06.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A conceptual model is proposed in this paper to calculate the bulk hardness of particle-reinforced metal matrix composites. Hadfield steel with niobium carbide particles is taken as an example to show the feasibility of this proposed method. A micro-scale concept called representative equivalent volume is used to investigate the heterogeneous microstructure and the impact of water quenching on the equivalent mechanical properties of the metal matrix composite. Furthermore, the continuum-scale indentation process used in laboratory hardness testing is simulated by the finite element method based on the stress-strain curves obtained from the micro-scale modeling. The simulated hardness is compared with laboratory measurements and a good agreement is observed confirming the model. Crown Copyright (C) 2017 Published by Elsevier Ltd. All rights reserved.

引用

页码：154 / 162

页数：9

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