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http://dx.doi.org/10.9725/kstle.2009.25.3.163

Development and its Performance Evaluation of a Depth-Sensing Micro-Indentation Testing Device  

Chung, Chin-Sung (Department of Automotive Engineering, Seoul National University of Technology)
Kim, Ho-Kyung (Department of Automotive Engineering, Seoul National University of Technology)
Publication Information
Tribology and Lubricants / v.25, no.3, 2009 , pp. 163-170 More about this Journal
Abstract
We developed a compact micro indentation testing device (designated SNUT) which is capable to measure Young's modulus of a sample using depth and applied load data during indentation. Performance of this device was evaluated using pure Ti, pure Ni, and die steel (SKD11). As a result of analysing the indentation test data, the frame compliance $C_f$ was found to influence mainly the modulus by 80% among several factors affecting accuracy of Young's modulus. Project area, which was determined by indirect indentation method, was modified using direct SEM observation. Finally, Young's modulus error was reduced to 5% after taking into consideration the frame compliance and modified projected area from 80% error without any these two correction factors. The performance of SNUT and MTS instruments was compared using same specimen (pure Ti).
Keywords
micro-indentation testing machine; young's modulus; frame compliance; projected area; Berkovich type diamond indenter;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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