期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 33, 期 10, 页码 1128-1133出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2017.05.001
关键词
Fracture toughness; Elastic modulus; Electron work function
资金
- Natural Science and Engineering Research Council of Canada
- Camber Technology Corporation, Suncor Energy Inc.
- Shell Canada Ltd.
- Magna International Inc.
- Volant Products Inc.
Fracture toughness determines materials' resistance to fracture, which is measured often using impact or bending tests. However, it is difficult to evaluate fracture toughness of coatings and small samples. In this article, using white irons as sample materials, we explore a possible approach of using electron work function (EWF) as an indicator in evaluating fracture toughness of hard metallic materials. This parameter is promising for being utilized to analyze toughness of protective coatings and small objects as well as bulk materials. Through comparison with results obtained from impact tests and elastic modulus measurement, effectiveness of this EWF approach is demonstrated. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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