Dry Sliding Friction and Wear Behavior of Surface Hardened Ferrous PM Cam Materials for Automobile Applications

Yue Ying Li; Qi Chao Deng; Ping Shi; Zhen Liang Qiao

doi:10.4028/www.scientific.net/AMR.652-654.1399

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Dry Sliding Friction and Wear Behavior of Surface Hardened Ferrous PM Cam Materials for Automobile Applications
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Dry Sliding Friction and Wear Behavior of Surface...

Dry Sliding Friction and Wear Behavior of Surface Hardened Ferrous PM Cam Materials for Automobile Applications

Abstract:

Two kinds of surface heat treatment (wide-band laser surface quenching and high-frequency induction quenching) had been performed on a ferrous PM cam material for automobile applications. Microstructure, hardness and tribological properties of ferrous PM cam materials were investigated. After laser surface quenching, the sintered cam materials could obtain finer martensite microstructure and higher hardness value, compared to high-frequency induction quenching. Wear tests revealed the superior wear resistance and coefficient of friction of laser surface hardened specimens in comparison with high-frequency induction quenched ones. Laser surface quenching can be a more effective surface heat treatment to improve wear resistance of the sintered cam materials than high-frequency induction quenching. On the lower test loads (such as 50N), the wear mechanism of the surface quenched ferrous PM cam materials is dominated adhesive and abrasive wear, while on the higher test loads (such as 120N and 150N), it is primarily delamination wear and abrasive wear.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

1399-1404

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.1399

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Online since:

January 2013

Authors:

Yue Ying Li, Qi Chao Deng, Ping Shi, Zhen Liang Qiao

Keywords:

Dry Sliding Wear, Ferrous PM Cam Materials, Tribological Behavior, Wear Mechanism, Wide-Band Laser Surface Quenching

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