Mahato, Anirban and Xia, Shuman and Perry, Tom and Sachdev, Anil and Biswas, SK (2010) Role of silicon in resisting subsurface plastic deformation in tribology of aluminium-silicon alloys. In: Tribology International, 43 (1-2). pp. 381-387.
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Silicon particles standing proud on aluminium-silicon alloy surfaces provide protection in tribology. Permanent sinking of such particles into the matrix under load can be deleterious. The mechanical response of the alloy to nano-indentation of single silicon particles embedded in the matrix is explored. A nominal critical pressure required to plastically deform the matrix to permanently embed the particle is determined experimentally. Within a framework suggested by two-dimensional models of plastic response to indentation, a probable correlation is established between the normal mean pressure required to cause permanent sinking of silicon particles and a factor which relates the relevant particle dimensions.
|Item Type:||Journal Article|
|Additional Information:||Copyright for this article belongs to Elsevier Science.|
|Keywords:||Aluminium-silicon alloy; Silicon particles; Plastic sinking|
|Department/Centre:||Division of Mechanical Sciences > Mechanical Engineering|
|Date Deposited:||03 Dec 2009 09:10|
|Last Modified:||19 Sep 2010 05:53|
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