Oxygen diffusion enables anti-wear boundary film formation on titanium surfaces in zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricants

Jun Qu; Peter J. Blau; Jane Y. Howe; Harry M. Meyer

doi:10.1016/j.scriptamat.2009.02.009

Oxygen diffusion enables anti-wear boundary film formation on titanium surfaces in zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricants

Jun Qu, Peter J. Blau, Jane Y. Howe, Harry M. Meyer

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

44 Scopus citations

Abstract

This paper reports a wear reduction by up to six orders of magnitude for Ti-6Al-4V alloy when treated by an oxygen diffusion (OD) process and subsequently tested in a zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricant. In addition to case hardening, it is discovered that OD enables the formation of an anti-wear boundary film on the titanium surface. Transmission electron microscopy and surface chemical analyses revealed that this boundary film has a two-layer structure comprising an amorphous oxide interlayer and a ZDDP-based top film with complex compounds.

Original language	English
Pages (from-to)	886-889
Number of pages	4
Journal	Scripta Materialia
Volume	60
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2009.02.009
State	Published - May 2009

Keywords

Boundary film
Oxygen diffusion
Titanium alloys
Wear
ZDDP

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10.1016/j.scriptamat.2009.02.009

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title = "Oxygen diffusion enables anti-wear boundary film formation on titanium surfaces in zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricants",

abstract = "This paper reports a wear reduction by up to six orders of magnitude for Ti-6Al-4V alloy when treated by an oxygen diffusion (OD) process and subsequently tested in a zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricant. In addition to case hardening, it is discovered that OD enables the formation of an anti-wear boundary film on the titanium surface. Transmission electron microscopy and surface chemical analyses revealed that this boundary film has a two-layer structure comprising an amorphous oxide interlayer and a ZDDP-based top film with complex compounds.",

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AU - Qu, Jun

AU - Blau, Peter J.

AU - Howe, Jane Y.

AU - Meyer, Harry M.

PY - 2009/5

Y1 - 2009/5

N2 - This paper reports a wear reduction by up to six orders of magnitude for Ti-6Al-4V alloy when treated by an oxygen diffusion (OD) process and subsequently tested in a zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricant. In addition to case hardening, it is discovered that OD enables the formation of an anti-wear boundary film on the titanium surface. Transmission electron microscopy and surface chemical analyses revealed that this boundary film has a two-layer structure comprising an amorphous oxide interlayer and a ZDDP-based top film with complex compounds.

AB - This paper reports a wear reduction by up to six orders of magnitude for Ti-6Al-4V alloy when treated by an oxygen diffusion (OD) process and subsequently tested in a zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricant. In addition to case hardening, it is discovered that OD enables the formation of an anti-wear boundary film on the titanium surface. Transmission electron microscopy and surface chemical analyses revealed that this boundary film has a two-layer structure comprising an amorphous oxide interlayer and a ZDDP-based top film with complex compounds.

KW - Boundary film

KW - Oxygen diffusion

KW - Titanium alloys

KW - Wear

KW - ZDDP

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M3 - Article

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SN - 1359-6462

VL - 60

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EP - 889

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

Oxygen diffusion enables anti-wear boundary film formation on titanium surfaces in zinc-dialkyl-dithiophosphate (ZDDP)-containing lubricants

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Keywords

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