Experimental Study to Examine Wear Characteristics and Determine the Wear Coefficient of Ductile Cast Iron (DCI) Roll

The microstructure of a ferrito-pearlitic ductile cast iron has been modified by CO2 laser surface hardening. Analysis of the laser-processed surfaces showed a dramatic increase in microhardness. Dry sliding wear of laser-treated specimens against an alumina counterbody has been investigated by “ball-on-disk” testing. The evolution of the wear coefficient, as well as metallographic observations, revealed an oxidational wear mechanism. The wear resistance of the laser-treated samples was significantly enhanced. The laser-treated cast iron has a better resistance to abrasion and plastic deformation. The improvement of the wear resistance was due to the fine and homogeneous microstructure produced after laser-treatment. Wear plots showing the evolution of wear coefficient with normal load, sliding velocity, and humidity have been established. The wear of the laser-treated cast iron is not influenced by the variation of operating conditions (normal load, sliding velocity, and relative humidity).

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An Experimental Study on the Mechanical Capability of a Rubber Gasket Joint in a Ductile Cast Iron Pipeline under Stretch-Bending

Pipelines 2016 ◽

10.1061/9780784479957.003 ◽

2016 ◽

Author(s):

Yang Han ◽

Junfeng Duan ◽

Jiahao Chen

Keyword(s):

Experimental Study ◽

Cast Iron ◽

Ductile Cast Iron ◽

Rubber Gasket ◽

Stretch Bending

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0213 Wear characteristics of coated carbide tools in the turning of ductile cast iron.

Proceedings of International Conference on Leading Edge Manufacturing in 21st century LEM21 ◽

10.1299/jsmelem.2015.8._0213-1_ ◽

2015 ◽

Vol 2015.8 (0) ◽

pp. _0213-1_-_0213-6_

Author(s):

Israel MARTINEZ ◽

Ryutaro TANAKA ◽

Yasuo YAMANE ◽

Katsuhiko SEKIYA ◽

Keiji YAMADA ◽

...

Keyword(s):

Cast Iron ◽

Ductile Cast Iron ◽

Wear Characteristics ◽

Coated Carbide ◽

Coated Carbide Tools

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High Pressure Wear Characteristics of Alloyed Ductile Cast Iron - Effect of Cu, Mn, Si and Mo

Materials Science Forum ◽

10.4028/www.scientific.net/msf.475-479.4223 ◽

2005 ◽

Vol 475-479 ◽

pp. 4223-4226 ◽

Cited By ~ 1

Author(s):

Woong Ho Bang ◽

C.S. Kang ◽

J.H. Park ◽

Kyu Hwan Oh

Keyword(s):

High Pressure ◽

Cast Iron ◽

Ductile Cast Iron ◽

Wear Properties ◽

Severe Wear ◽

Wear Characteristics ◽

Mild Wear ◽

Drastic Increase ◽

Wear Mode ◽

Wear Region

Under a high-pressure condition, the wear characteristics of alloyed and unalloyed ductile cast iron were investigated. Mn, Cu, Si and Mo were chosen as alloying elements, and their effects on mechanical properties of hardness and toughness were correlated with wear properties. In most cases, high-pressure wear of alloyed and unalloyed DCI were sequentially developed by mild wear region followed by severe wear. The transition of wear mode was indicated by the drastic increase of friction coefficient and wear rate. The observation of worn surface at mild-wear region suggested that wear had been concentrated at graphite phases, whereas severe wear mode damaged both of graphite and matrix. It was found that DCI alloyed with Si-Mo exhibited the most prominent resistance to the beginning of severe wear while the toughness of DCI was also a crucial factor.

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