Effect of re-scanning on tribological characterization of laser surface alloyed layers

S. A. Vaziri; H. R. Shahverdi; S. G. Shabestari; K. Hazeli; M. J. Torkamany

doi:10.1016/j.matdes.2010.02.040

Effect of re-scanning on tribological characterization of laser surface alloyed layers

S. A. Vaziri, H. R. Shahverdi, S. G. Shabestari, K. Hazeli, M. J. Torkamany

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Laser surface alloying (LSA) is increasingly recognized as a powerful surface modification tool for enhancing the wear resistance of engineering components. Experimental investigations have been carried out to examine the influence of re-scanning on tribological behavior in laser surface alloying of Al with Ni. Dry sliding wear tests have been conducted using a reciprocating machine under different normal loads of 10,. 15, and 20. N and at a constant sliding speed of 0.1m/s. Re-scanning was found to substantially affect the laser-alloyed layer, including its phase constitution. Re-scanning leads to higher hardness compared to a single-time scan; however, the specific wear rate following re-scanning is lower. These observations are rationalized in terms of microstructure and the wear mechanism.

Original language	English (US)
Pages (from-to)	3875-3879
Number of pages	5
Journal	Materials and Design
Volume	31
Issue number	8
DOIs	https://doi.org/10.1016/j.matdes.2010.02.040
State	Published - Sep 2010
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matdes.2010.02.040

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title = "Effect of re-scanning on tribological characterization of laser surface alloyed layers",

abstract = "Laser surface alloying (LSA) is increasingly recognized as a powerful surface modification tool for enhancing the wear resistance of engineering components. Experimental investigations have been carried out to examine the influence of re-scanning on tribological behavior in laser surface alloying of Al with Ni. Dry sliding wear tests have been conducted using a reciprocating machine under different normal loads of 10,. 15, and 20. N and at a constant sliding speed of 0.1m/s. Re-scanning was found to substantially affect the laser-alloyed layer, including its phase constitution. Re-scanning leads to higher hardness compared to a single-time scan; however, the specific wear rate following re-scanning is lower. These observations are rationalized in terms of microstructure and the wear mechanism.",

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AU - Vaziri, S. A.

AU - Shahverdi, H. R.

AU - Shabestari, S. G.

AU - Hazeli, K.

AU - Torkamany, M. J.

PY - 2010/9

Y1 - 2010/9

N2 - Laser surface alloying (LSA) is increasingly recognized as a powerful surface modification tool for enhancing the wear resistance of engineering components. Experimental investigations have been carried out to examine the influence of re-scanning on tribological behavior in laser surface alloying of Al with Ni. Dry sliding wear tests have been conducted using a reciprocating machine under different normal loads of 10,. 15, and 20. N and at a constant sliding speed of 0.1m/s. Re-scanning was found to substantially affect the laser-alloyed layer, including its phase constitution. Re-scanning leads to higher hardness compared to a single-time scan; however, the specific wear rate following re-scanning is lower. These observations are rationalized in terms of microstructure and the wear mechanism.

AB - Laser surface alloying (LSA) is increasingly recognized as a powerful surface modification tool for enhancing the wear resistance of engineering components. Experimental investigations have been carried out to examine the influence of re-scanning on tribological behavior in laser surface alloying of Al with Ni. Dry sliding wear tests have been conducted using a reciprocating machine under different normal loads of 10,. 15, and 20. N and at a constant sliding speed of 0.1m/s. Re-scanning was found to substantially affect the laser-alloyed layer, including its phase constitution. Re-scanning leads to higher hardness compared to a single-time scan; however, the specific wear rate following re-scanning is lower. These observations are rationalized in terms of microstructure and the wear mechanism.

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Effect of re-scanning on tribological characterization of laser surface alloyed layers

Abstract

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