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Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2019

Theses/Dissertations

Doctoral Dissertations

Missouri University of Science and Technology

Alloy design

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Full-Text Articles in Engineering

On Developing A Graphitic White Iron For Metal-To-Metal Wear Systems, Jie Wan Jan 2019

On Developing A Graphitic White Iron For Metal-To-Metal Wear Systems, Jie Wan

Doctoral Dissertations

"This research addressed heat dissipation issues related to the adhesive wear observed in metal-to-metal wear systems, by developing a graphitic white iron to increase thermal diffusivity of the wear components. One of the premium materials commonly used in current metal-to-metal wear systems is Fe15Mo18Cr and field returned parts were characterized as part of this study. Failure analysis showed that white layers were formed on the wearing surface due to frictional heating and surface deformation. These white layers were extremely brittle and could be fractured easily during use, which in turn led to micro-galling defects that caused parts leakage. Increasing thermal …