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Kim, Young-Cheon
Robust Multifunctional Materials Lab
Research Interests
  • Effect of Material Characteristic Lengths on Mechanical Behavior of Metals

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Evaluation of high-temperature Vickers hardness using instrumented indentation system

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Title
Evaluation of high-temperature Vickers hardness using instrumented indentation system
Author
Park, Chan-PyoungLee, Jung-JunKang, Seung-KyunKim, Young-CheonWoo, Kwan-SikJeon, Seung-WonKwon, Dongil
Issue Date
2016-01
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.650, pp.15 - 19
Abstract
Instrumented indentation testing is more advanced than conventional hardness testing in measuring various mechanical properties of materials. To evaluate these mechanical properties, information about indentation contact area is required. In particular, the deformation behavior of metals at high-temperatures seems to differ from that at room temperature, and thus for accurate evaluation of mechanical characteristics at high-temperatures, the high-temperature contact area should be used. In this study, an instrumented indentation system for high-temperatures was developed and measurement-errors caused by equipment temperature were calibrated. In addition, the pileup effect during indentation was studied at different temperatures. A new equation for the high-temperature contact area is proposed. For verification, conventional hardness testing was performed to compare the results with high-temperature instrumented indentation testing.
URI
https://scholarworks.unist.ac.kr/handle/201301/17841
URL
http://www.sciencedirect.com/science/article/pii/S0921509315304974
DOI
10.1016/j.msea.2015.10.034
ISSN
0921-5093
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MSE_Journal Papers
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