Investigation of wear performance for the first generation graphitic white iron

Research output: Contribution to book or proceedingConference articlepeer-review

1 Scopus citations

Abstract

One issue for metal-to-metal wear system is the generation of frictional heat can over-heat the wearing surfaces and result in failure. First generation “graphitic white iron,” was developed by the authors, and graphite was introduced into white iron to accelerate the heat dissipation and extend the service life of the metal-to-metal wear components. Wear property for the first generation graphitic white iron was evaluated utilizing a dry sand/rubber wheel apparatus following ASTM G65. Wear scars were analyzed with various characterization techniques. It was found that 1 vol.% graphite had an equivalent contribution to 2.33 HRC hardness, with respect to wear resistance. Hard M7C3 carbide was found to effectively interfere with the wearing by serving as wear “stopper”, meanwhile the lower hardness cementite carbide worked as wear “buffer” and prevented the removal of the “stopper”. A numerical model was developed to correlate hardness, graphite volume percent and the wear performance.

Original languageEnglish
Title of host publicationMS and T 2019 - Materials Science and Technology 2019
PublisherMaterials Science and Technology
Pages628-630
Number of pages3
ISBN (Electronic)0873397703, 9780873397704
DOIs
StatePublished - 2019
EventMaterials Science and Technology 2019, MS and T 2019 - Portland, United States
Duration: Sep 29 2019Oct 3 2019

Publication series

NameMS and T 2019 - Materials Science and Technology 2019

Conference

ConferenceMaterials Science and Technology 2019, MS and T 2019
Country/TerritoryUnited States
CityPortland
Period09/29/1910/3/19

Keywords

  • ASTM G65
  • Graphitic White Iron
  • Wear Mechanism
  • Wear Resistance

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