Abstract
to tailor the bulk mechanical properties of many engineering alloys. It is
less well appreciated that precipitation can also be induced to occur on
the surfaces of engineering alloys using simple heat treatments raising
the possibility of using precipitation as a form of surface treatment.
Surface precipitation occurs through a nucleation and growth process
with kinetics that suggest mass transfer by surface (or interface)
diffusion plays the dominant role. In this presentation, surface
precipitation in a number of Al based alloys is presented, the physical
principles underlying the phenomena are discussed and some
interesting possibilities for ‘surface physical metallurgy’ are highlighted.
Questions of the competition in phase formation on the surface, the
compositions inherited by the growing surface precipitates and the
coupling of bulk and surface diffusion are discussed.
| Original language | English |
|---|---|
| Pages | 1007-1008 |
| Number of pages | 2 |
| Publication status | Published - 2015 |
| Event | International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015 - Westin Whistler Resort & Spa, Whistler, Canada Duration: 28 Jun 2015 → 3 Jul 2015 https://www.eiseverywhere.com//ehome/ptm2015/ |
Conference
| Conference | International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015 |
|---|---|
| Abbreviated title | PTM 2015 |
| Country | Canada |
| City | Whistler |
| Period | 28/06/15 → 3/07/15 |
| Internet address |
Keywords
- Aluminum
- Engineering alloys
- Precipitation
- Surfaces
Cite this
}
Surface precipitation on engineering alloys. / Chen, Yu; Fang, Xiya; Brechet, Yves; Hutchinson, Christopher.
2015. 1007-1008 Abstract from International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015, Whistler, Canada.Research output: Contribution to conference › Abstract › Other
TY - CONF
T1 - Surface precipitation on engineering alloys
AU - Chen, Yu
AU - Fang, Xiya
AU - Brechet, Yves
AU - Hutchinson, Christopher
PY - 2015
Y1 - 2015
N2 - The nucleation and growth of solid state precipitates is used extensivelyto tailor the bulk mechanical properties of many engineering alloys. It isless well appreciated that precipitation can also be induced to occur onthe surfaces of engineering alloys using simple heat treatments raisingthe possibility of using precipitation as a form of surface treatment.Surface precipitation occurs through a nucleation and growth processwith kinetics that suggest mass transfer by surface (or interface)diffusion plays the dominant role. In this presentation, surfaceprecipitation in a number of Al based alloys is presented, the physicalprinciples underlying the phenomena are discussed and someinteresting possibilities for ‘surface physical metallurgy’ are highlighted.Questions of the competition in phase formation on the surface, thecompositions inherited by the growing surface precipitates and thecoupling of bulk and surface diffusion are discussed.
AB - The nucleation and growth of solid state precipitates is used extensivelyto tailor the bulk mechanical properties of many engineering alloys. It isless well appreciated that precipitation can also be induced to occur onthe surfaces of engineering alloys using simple heat treatments raisingthe possibility of using precipitation as a form of surface treatment.Surface precipitation occurs through a nucleation and growth processwith kinetics that suggest mass transfer by surface (or interface)diffusion plays the dominant role. In this presentation, surfaceprecipitation in a number of Al based alloys is presented, the physicalprinciples underlying the phenomena are discussed and someinteresting possibilities for ‘surface physical metallurgy’ are highlighted.Questions of the competition in phase formation on the surface, thecompositions inherited by the growing surface precipitates and thecoupling of bulk and surface diffusion are discussed.
KW - Aluminum
KW - Engineering alloys
KW - Precipitation
KW - Surfaces
UR - http://www.scopus.com/inward/record.url?scp=84962706047&partnerID=8YFLogxK
M3 - Abstract
SP - 1007
EP - 1008
ER -