各向同性磁流变橡胶材料的摩擦实验研究<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.02.014

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Abstract The influence of magnetic field on tribological behavior of isotropic magnetorheological elastomer (MRE) was investigated from both macroscopic and microscopic view. Friction test-bed of MRE was built, and sliding friction experiment was carried out under an external magnetic field. The experimental results showed that the friction coefficient of MRE decreased with the increase of normal pressure under conditions of light load and low speed. The friction coefficient of MRE surface decreased under magnetic field, and the decreasing trend presented a nonlinear change with the increase of volume fraction of carbonyl iron. The maximum reduction of friction coefficient was about 25% when the volume fraction of carbonyl iron was 10%, the normal pressure was 0.25 N and the magnetic field was 250 mT. Then the surface of MRE under magnetic field and nonmagnetic field were further observed by metallographic microscope. The test showed that the magnetic field caused the aggregation of carbonyl iron on the surface of MRE, which changed the material properties and microstructure of the surface, and it was an important reason for the change of tribological behavior of MRE.

Key words： magnetorheological elastomer friction coefficient microscope

Published: 02 May 2018

CLC number:

TB381

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	Articles by authors
	LI Rui
	REN Dejun
	CHEN Xiang
	WANG Xiaojie

Cite this article:

LI Rui,REN Dejun,CHEN Xiang, et al. Experimental Study on the Friction of Isotropic Magnetorheological Elastomer Materials[J]. Materials Reports, 2017, 31(2): 64-68.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.02.014 OR http://www.mater-rep.com/EN/Y2017/V31/I2/64

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