Design of lubricants using waste slag in large strain addition strip processing for ultrafine-grained steels

Masashi Nakamoto, Joonho Lee, Toshihiro Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Aiming to design new lubricants in the large strain addition strip process for ultrafine-grained steels, we tested the possibility of using waste slag, which is generated largely from iron and steelmaking processes, municipal waste treatments and so on. We then focused our attention on the slag containing water as the new lubricant. Slag satisfies the requirement of biting the workpiece stably, which cannot be achieved with conventional lubricants, because slag is stable as a solid phase of high hardness at the biting temperature in the strip process (100-200°C). In addition, slag contains water under hydrothermal conditions to provide lubricating effects by lowering glass transition temperature. In the present study, the effect of additive components (Al 2O3, B2O3, CaO, MgO, K2O, Li2O and V2O5) on the glass transition temperature of a SiO2-Na2O-based slag containing water was examined. The glass transition temperature of the slag containing water is 150-300°C, which is lower than that of original slag. It was also found that the glass transition temperature depends on the additive components to the slag.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages319-324
Number of pages6
Volume512
DOIs
Publication statusPublished - 2006 Dec 1
Externally publishedYes
EventInternational Symposium on Advanced Structural and Functional Materials Design, 2004 - Osaka, Japan
Duration: 2004 Nov 102004 Nov 12

Publication series

NameMaterials Science Forum
Volume512
ISSN (Print)02555476

Other

OtherInternational Symposium on Advanced Structural and Functional Materials Design, 2004
CountryJapan
CityOsaka
Period04/11/1004/11/12

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Keywords

  • Glass transition temperature
  • Large strain addition strip processing
  • Lubricant
  • Slag containing water
  • Ultrafine-grained steels
  • Waste slag

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Nakamoto, M., Lee, J., & Tanaka, T. (2006). Design of lubricants using waste slag in large strain addition strip processing for ultrafine-grained steels. In Materials Science Forum (Vol. 512, pp. 319-324). (Materials Science Forum; Vol. 512). https://doi.org/10.4028/0-87849-996-2.319