Archive: 2008 - Moldavian Journal of the Physical Sciences

05 Oct 2008

2008
V. 7
4
(p.438 - 448)

Influence of conditions of friction indentation loading of some metals on the microhardness scale effect

Authors:

Jitaru, Raisa; Parşutin, Vladimir; Paramonov, Anatolii; Covali, Alexandru; Agafii, Vasile

Summary:

A new approach explaining the microhardness dependence on indentation load is pro- posed. It is assumed that the scale effect of microhardness is due to stage pattern of plastic strain and to gradual transition from the dislocation strain to the rotation one according to increasing force of indentor penetration. It is established that lubrication influence on the microhardness value is determined by stages of the microindentation process: at the loading stage, by modification in the structural condition of the surface metal layer in the indentor- metal contact region; at the unloading stage, by value of elastic recovery of stresses formed under loading. The joint action of both factors determines variations in the microhardness with the use of lubricant media. The same factors determine the microhardness dependence on indentation load value in lubricant media.

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BibTeX

@article{ibn_3943,
author = {Jitaru, R.P. and Parşutin, V.V. and Paramonov, A.M. and Covali, A.V. and Agafii, V.I.},
title = {Influence of conditions of friction indentation loading of some metals on the microhardness scale effect},
journal = {Moldavian Journal of the Physical Sciences},
year = {2008},
volume = {7 (4)},
pages = {438-448},
month = {Oct},
abstract = {(EN) A new approach explaining the microhardness dependence on indentation load is pro-

posed. It is assumed that the scale effect of microhardness is due to stage pattern of plastic 
strain and to gradual transition from the dislocation strain to the rotation one according to increasing force of indentor penetration. It is established that lubrication influence on the microhardness value is determined by stages of  the microindentation process: at the loading 
stage, by modification in the structural condition of the surface metal layer in the indentor-
metal contact region; at the unloading stage, by value of elastic recovery of stresses formed 
under loading. The joint action of both factors  determines variations  in the microhardness 
with the use of lubricant media. The same factors determine the microhardness dependence on 
indentation load value in lubricant media. },
url = {https://ibn.idsi.md/vizualizare_articol/3943},
}

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metal contact region; at the unloading stage, by value of elastic recovery of stresses formed 
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posed. It is assumed that the scale effect of microhardness is due to stage pattern of plastic 
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stage, by modification in the structural condition of the surface metal layer in the indentor-
metal contact region; at the unloading stage, by value of elastic recovery of stresses formed 
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“ ... ”

SM ISO690:2012

JITARU, Raisa; PARSHUTIN, Vladimir; PARAMONOV, Anatolii; KOVALI, Alexandr; AGAFII, Vasile. Influence of conditions of friction indentation loading of some metals on the microhardness scale effect. In: Moldavian Journal of the Physical Sciences. 2008, nr. 4(7), pp. 438-448. ISSN 1810-648X.