Failure analysis as a tool to optimize the design of a ring on disc tribotest investigating the role of surface roughness
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- 作者：Ana Cecí ; lia Pontes Rodriguesa ; Paulo Jorge Nunes Ribeiroa ; Werner Ö ; sterleb ; Cesar Roberto de Farias Azevedoa ;
- 关键词：Ring-on-disc tribotest ; Surface roughness ; EDM processing ; Rapid solidification ; Grey cast iron
- 刊名：Engineering Failure Analysis
- 出版年：2015
- 出版时间：October 2015
- 年：2015
- 卷：56
- 期：Complete
- 页码：131-141
- 全文大小：4374 K
文摘
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The influence of surface roughness of grey cast iron on friction was investigated.
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Electro discharge machining (EDM) was used to produce diverse topographies.
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The role of surface roughness on friction coefficient could not be determined.
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EDM process promoted the incipient fusion of the grey cast iron surfaces.
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A layer with dendritic microstructure was formed on the surface of EDMed discs.