Self-lubrication of Cl-implanted titanium nitride coating for dry metal forming

Atsushi Mitsuo, Thananan Akhadejdamrong, Tatsuhiko Aizawa

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Various kinds of lubricants are utilized in every aspect of manufacturing for mass production. To prolong the life time of tools or dies, much amount of lubricants must be used for mechanical machining or metal forming, resulting in massive emission of wasted lubricants. Dematerialization in the environmentally benign manufacturing requires less use and less emission of lubricants as possible to significantly reduce the environmental burden. For that purpose, dry machining or dry metal forming becomes a challenging issue to be solved. In the present paper, new tribological coating design is proposed to significantly reduce the wear volume and friction coefficient and to minimize the emission of wastes in wear. Titanium nitride coating has been widely used for protection of dies and tools from severe wear. Due to high friction coefficient and less wear endurance, adhesive wear often takes place against the stainless steel or ductile metallic alloy counter parts. Hence, even using this type of protective coating, lubricants are indispensable to reduce the friction coefficient and to be free from metallic sticking. Self-lubrication mechanism can be imprinted into titanium nitride coating only by chlorine implantation into it. Under the presence of chlorine in the wear track, the plastically deforming intermediate oxide film is in-situ formed to sustain low friction and low wearing mode in the relatively wide range of normal pressure and sliding velocity on the contact surface. Through the feasibility study, total amount of chlorine used for this self-lubrication is found to be negligibly small, but the self-lubrication mechanism is sustained to be working until the initial titanium nitride coating is completely worn out from the substrate.

Original languageEnglish
Pages (from-to)1295-1302
Number of pages8
JournalMaterials Transactions
Volume44
Issue number7
Publication statusPublished - 2003 Jul
Externally publishedYes

Fingerprint

self lubrication
metal forming
Titanium nitride
titanium nitrides
Metal forming
Lubrication
lubricants
Lubricants
Wear of materials
coatings
Coatings
Chlorine
coefficient of friction
Friction
chlorine
machining
Machining
manufacturing
protective coatings
endurance

Keywords

  • Chlorine implantation
  • Dry forming
  • Low friction and wear
  • Self-lubrication
  • TiN

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Mitsuo, A., Akhadejdamrong, T., & Aizawa, T. (2003). Self-lubrication of Cl-implanted titanium nitride coating for dry metal forming. Materials Transactions, 44(7), 1295-1302.

Self-lubrication of Cl-implanted titanium nitride coating for dry metal forming. / Mitsuo, Atsushi; Akhadejdamrong, Thananan; Aizawa, Tatsuhiko.

In: Materials Transactions, Vol. 44, No. 7, 07.2003, p. 1295-1302.

Research output: Contribution to journalArticle

Mitsuo, A, Akhadejdamrong, T & Aizawa, T 2003, 'Self-lubrication of Cl-implanted titanium nitride coating for dry metal forming', Materials Transactions, vol. 44, no. 7, pp. 1295-1302.
Mitsuo, Atsushi ; Akhadejdamrong, Thananan ; Aizawa, Tatsuhiko. / Self-lubrication of Cl-implanted titanium nitride coating for dry metal forming. In: Materials Transactions. 2003 ; Vol. 44, No. 7. pp. 1295-1302.
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