Abstract
Diffusion-couple experiments were conducted on fine-grained alloys in the Al-Mg and Al-Zn systems. It is well known that grain refinement to the submicrometer range is feasible using the process of equal-channel angular pressing (ECAP). In addition, this process can be used also to produce microstructures with predominantly low-angle or high-angle grain boundaries by controlling the shearing direction and the extent of the imposed strain. Alloys having small grain sizes but different misorientation angles were used to make diffusion couples and the interdiffusion coefficients were determined by measuring the concentration profiles across the interfaces. The contribution of grain boundary diffusion to the overall diffusion was evaluated in terms of the alloying elements and the misorientation angles.
| Original language | English |
|---|---|
| Pages (from-to) | 1061-1066 |
| Number of pages | 6 |
| Journal | Materials Science Forum |
| Volume | 396-402 |
| Issue number | 2 |
| Publication status | Published - Dec 3 2002 |
| Event | Aluminium Alloys 2002 Their Physical and Mechnaical Properties: Proceedings of the 8th International Conference ICAA8 - Cambridge, United Kingdom Duration: Jul 2 2002 → Jul 5 2002 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Diffusion in fine-grained Al alloys having low and high angle grain boundaries. / Fujita, Takeshi; Horita, Zenji; Langdon, Terence G.
In: Materials Science Forum, Vol. 396-402, No. 2, 03.12.2002, p. 1061-1066.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Diffusion in fine-grained Al alloys having low and high angle grain boundaries
AU - Fujita, Takeshi
AU - Horita, Zenji
AU - Langdon, Terence G.
PY - 2002/12/3
Y1 - 2002/12/3
N2 - Diffusion-couple experiments were conducted on fine-grained alloys in the Al-Mg and Al-Zn systems. It is well known that grain refinement to the submicrometer range is feasible using the process of equal-channel angular pressing (ECAP). In addition, this process can be used also to produce microstructures with predominantly low-angle or high-angle grain boundaries by controlling the shearing direction and the extent of the imposed strain. Alloys having small grain sizes but different misorientation angles were used to make diffusion couples and the interdiffusion coefficients were determined by measuring the concentration profiles across the interfaces. The contribution of grain boundary diffusion to the overall diffusion was evaluated in terms of the alloying elements and the misorientation angles.
AB - Diffusion-couple experiments were conducted on fine-grained alloys in the Al-Mg and Al-Zn systems. It is well known that grain refinement to the submicrometer range is feasible using the process of equal-channel angular pressing (ECAP). In addition, this process can be used also to produce microstructures with predominantly low-angle or high-angle grain boundaries by controlling the shearing direction and the extent of the imposed strain. Alloys having small grain sizes but different misorientation angles were used to make diffusion couples and the interdiffusion coefficients were determined by measuring the concentration profiles across the interfaces. The contribution of grain boundary diffusion to the overall diffusion was evaluated in terms of the alloying elements and the misorientation angles.
UR - http://www.scopus.com/inward/record.url?scp=0036433849&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036433849&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0036433849
VL - 396-402
SP - 1061
EP - 1066
JO - Materials Science Forum
JF - Materials Science Forum
SN - 0255-5476
IS - 2
ER -