Kang, Seung-Kyun and Kim, Ju-Young and Kang, Ingeun and Kwon, Dongil (2009) Effective indenter radius and frame compliance in instrumented indentation testing using a spherical indenter. Journal of Materials Research, 24 (9). pp. 2965-2973. ISSN 0884-2914 http://resolver.caltech.edu/CaltechAUTHORS:20090923-143135393
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We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter. Effective radii were measured directly from residual indentation marks at various contact depths (ratio of contact depth to indenter radius between 0.1 and 0.9) and were determined as a function of contact depth. Frame compliance was found to depend on contact depth especially at small indentation depths, which is successfully explained using the concept of an extended frame boundary. Improved representative stress-strain values as well as hardness and elastic modulus were obtained over the entire contact depth.
|Additional Information:||© 2009, Materials Research Society. (Received 31 January 2009; accepted 22 June 2009) This research was supported in part by the Seoul R&BD Program (Grant No. TR080564) of the Seoul Development Institute, Korea, and in part by the Center for Nanoscale Mechatronics and Manufacturing under The 21st Century Frontier R&D Program (Grant No. M102KN010006-08K1401-00621) of the Ministry of Education, Science and Technology, Korea.|
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|Deposited By:||George Porter|
|Deposited On:||05 Oct 2009 16:38|
|Last Modified:||26 Dec 2012 11:25|
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