Please use this identifier to cite or link to this item:
Title: Nanoindentation study of nanocrystalline nickel
Authors: Jayaganthan, R. 
Mohankumar, K.
Tay, A.A.O. 
Keywords: Mechanical behavior
Nanocrystalline nickel
Issue Date: Apr-2005
Citation: Jayaganthan, R., Mohankumar, K., Tay, A.A.O. (2005-04). Nanoindentation study of nanocrystalline nickel. International Journal of Nanoscience 4 (2) : 197-205. ScholarBank@NUS Repository.
Abstract: The mechanical properties of nanocrystalline (Nc) Ni (electrodeposited, sintered, rolled) and microcrystalline (Mc) Ni were investigated by nanoindentation technique. Force-displacement curves generated during loading and unloading of the nanoindenter tip (Berkovich diamond tip) were used to determine the hardness and elastic properties of the Nc-nickel. The influence of loading rate on the hardness of electrodeposited Nc-Ni and microcrystalline (Mc) Ni were studied in the present work. The electrodeposited Nc-nickel exhibits higher hardness and elastic modulus when compared to sintered Nc-nickel. The higher modulus of elasticity is observed for the rolled Nc-nickel due to the increased defect density and less porosity in the samples. The higher modulus of elasticity is observed for Mc-nickel when compared to that of Nc-nickel (electrodeposited) with varying load rate. The strain rate sensitivity of Nc-nickel is due to the grain boundary affected zone. © World Scientific Publishing Company.
Source Title: International Journal of Nanoscience
ISSN: 0219581X
DOI: 10.1142/S0219581X05003048
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jul 11, 2018

Page view(s)

checked on Jul 6, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.