Influence of Work Media on Surface Property of Compacted Graphite Cast Iron Processed by Laser Local Processing

Yan Liu; Hong Zhou; Jing Yan Cheng; Chun Yan Yang; Peng Zhang

doi:10.4028/www.scientific.net/MSF.817.385

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Si Purity Control and Separation from Solidification of Al–30Si Melt under Pulse Electromagnetic Field
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Influence of Work Media on Surface Property of Compacted Graphite Cast Iron Processed by Laser Local Processing
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Effect of Pulse Current on the Plastic Deformation Behavior of Tungsten
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Optimizing Homogenization Heat Treatment of Al-Zn-Mg-Cu-Zr-0.15Er Alloy
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Arrhenius-Type Constitutive Model for 316LN Stainless Steel during Hot Deformation
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Grain Refinement of Pure Al by Inoculation and Rotating Magnetic Field
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HomeMaterials Science ForumMaterials Science Forum Vol. 817Influence of Work Media on Surface Property of...

Influence of Work Media on Surface Property of Compacted Graphite Cast Iron Processed by Laser Local Processing

Abstract:

In order to enhance surface property of brake materials, compacted graphite cast iron (CGI) with non-smooth surface was processed by laser local processing. This study focuses on the influence of the work media on wear resistance and thermal fatigue resistance of specimens. The results showed that when the work media were air and water respectively, laser local processing could enhance surface property of CGI. Changing work media could not change phase compositions of the laser processing area, but refined their microstructures, which enhanced their micro-hardness. By this way, the specimens’ wear resistance and resistance to thermal crack initiation were further improved, while their resistance to thermal crack propagation was influenced by cracks on bionic units.

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Periodical:

Materials Science Forum (Volume 817)

Pages:

385-391

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.817.385

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Online since:

April 2015

Authors:

Yan Liu, Hong Zhou, Jing Yan Cheng, Chun Yan Yang, Peng Zhang

Keywords:

Compacted Graphite Cast Iron, Laser, Thermal Fatigue Resistance, Wear Resistance, Work Media

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