Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 252 - 258 |
| Number of pages | 7 |
| Journal | Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing |
| Volume | 538 |
| DOIs | |
| Publication status | Published - 2012 |
Cite this
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Analysis of microstructure and strengthening in pure titanium recycled from machining chips by equal channel angular pressing using electron backscatter diffraction. / Luo, Peng; McDonald, Daniel T; Zhu, Su-Ming; Palanisamy, Suresh; Dargusch, Matthew Simon; Xia, Kenong.
In: Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, Vol. 538, 2012, p. 252 - 258.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Analysis of microstructure and strengthening in pure titanium recycled from machining chips by equal channel angular pressing using electron backscatter diffraction
AU - Luo, Peng
AU - McDonald, Daniel T
AU - Zhu, Su-Ming
AU - Palanisamy, Suresh
AU - Dargusch, Matthew Simon
AU - Xia, Kenong
PY - 2012
Y1 - 2012
N2 - Equal channel angular pressing (ECAP) was used to realise solid-state recycling of pure titanium machining chips. Fully dense bulk Ti with ultrafine grain sizes was obtained after ECAP at 450 °C although the grains were coarser at the higher consolidation temperature of 590 °C. The yield strength of the recycled Ti obeys the Hall–Petch relationship and reaches 650 MPa after consolidation at 450 °C for two passes. The strengths achieved are comparable to those observed in other Ti produced by ingot metallurgy with similar grain sizes. Analyses show that the strengthening is primarily due to grain size refinement rather than oxide dispersion, and low angle grain boundaries make significant contributions especially at the lower processing temperature.
AB - Equal channel angular pressing (ECAP) was used to realise solid-state recycling of pure titanium machining chips. Fully dense bulk Ti with ultrafine grain sizes was obtained after ECAP at 450 °C although the grains were coarser at the higher consolidation temperature of 590 °C. The yield strength of the recycled Ti obeys the Hall–Petch relationship and reaches 650 MPa after consolidation at 450 °C for two passes. The strengths achieved are comparable to those observed in other Ti produced by ingot metallurgy with similar grain sizes. Analyses show that the strengthening is primarily due to grain size refinement rather than oxide dispersion, and low angle grain boundaries make significant contributions especially at the lower processing temperature.
UR - http://dx.doi.org/10.1016/j.msea.2012.01.039
U2 - 10.1016/j.msea.2012.01.039
DO - 10.1016/j.msea.2012.01.039
M3 - Article
VL - 538
SP - 252
EP - 258
JO - Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
ER -