Details
| Original language | English |
|---|---|
| Pages (from-to) | 97-104 |
| Number of pages | 8 |
| Journal | Materials Science and Engineering A |
| Volume | 517 |
| Issue number | 1-2 |
| Publication status | Published - 20 Aug 2009 |
| Externally published | Yes |
Abstract
In this study, pure grade 2 Ti was processed via equal-channel angular extrusion (ECAE) for 8 and 12 passes following route-E at 300 °C. After processing, the microstructural evolution, tensile properties and wear behavior were investigated. ECAE-processed Ti exhibited a significant improvement in strength values with a slight decrease in ductility. However, the wear test results surprisingly showed that the strengthening of titanium by ECAE processing does not lead to the improvement of wear resistance at least for the pressures and sliding distances used in this study. This finding was mainly attributed to the tribochemical reaction leading to oxidative wear with the abrasive effect in Ti. Three distinct regions were formed on the subsurface of CG and UFG Ti after sliding wear, which are the tribolayer including titanium oxide with smeared wear material at the top, a deformed region having material structure oriented along the sliding direction in the middle, and the original unaffected bulk material at the bottom.
Keywords
- Equal-channel angular extrusion, Mechanical behavior, Titanium, Ultrafine-grained materials, Wear
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materials Science and Engineering A, Vol. 517, No. 1-2, 20.08.2009, p. 97-104.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Mechanical and wear properties of ultrafine-grained pure Ti produced by multi-pass equal-channel angular extrusion
AU - Purcek, G.
AU - Saray, O.
AU - Kul, O.
AU - Karaman, I.
AU - Yapici, G. G.
AU - Haouaoui, M.
AU - Maier, H. J.
PY - 2009/8/20
Y1 - 2009/8/20
N2 - In this study, pure grade 2 Ti was processed via equal-channel angular extrusion (ECAE) for 8 and 12 passes following route-E at 300 °C. After processing, the microstructural evolution, tensile properties and wear behavior were investigated. ECAE-processed Ti exhibited a significant improvement in strength values with a slight decrease in ductility. However, the wear test results surprisingly showed that the strengthening of titanium by ECAE processing does not lead to the improvement of wear resistance at least for the pressures and sliding distances used in this study. This finding was mainly attributed to the tribochemical reaction leading to oxidative wear with the abrasive effect in Ti. Three distinct regions were formed on the subsurface of CG and UFG Ti after sliding wear, which are the tribolayer including titanium oxide with smeared wear material at the top, a deformed region having material structure oriented along the sliding direction in the middle, and the original unaffected bulk material at the bottom.
AB - In this study, pure grade 2 Ti was processed via equal-channel angular extrusion (ECAE) for 8 and 12 passes following route-E at 300 °C. After processing, the microstructural evolution, tensile properties and wear behavior were investigated. ECAE-processed Ti exhibited a significant improvement in strength values with a slight decrease in ductility. However, the wear test results surprisingly showed that the strengthening of titanium by ECAE processing does not lead to the improvement of wear resistance at least for the pressures and sliding distances used in this study. This finding was mainly attributed to the tribochemical reaction leading to oxidative wear with the abrasive effect in Ti. Three distinct regions were formed on the subsurface of CG and UFG Ti after sliding wear, which are the tribolayer including titanium oxide with smeared wear material at the top, a deformed region having material structure oriented along the sliding direction in the middle, and the original unaffected bulk material at the bottom.
KW - Equal-channel angular extrusion
KW - Mechanical behavior
KW - Titanium
KW - Ultrafine-grained materials
KW - Wear
UR - http://www.scopus.com/inward/record.url?scp=67649414393&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2009.03.054
DO - 10.1016/j.msea.2009.03.054
M3 - Article
AN - SCOPUS:67649414393
VL - 517
SP - 97
EP - 104
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 1-2
ER -