Abstract
The age hardening behavior of ultrafine-grained Al-Mg-Si alloys with micro-additions of Cu and Ag has been investigated with a special emphasis on the relationship between microstructural features and hardness evolutions. Using transmission electron microscopy, it is shown that the higher hardness and thermal stability induced by a small amount of Cu is due to clustering during grain refinement by severe plastic deformation. It is also demonstrated that the addition of Ag is beneficial for the thermal stability of the ultrafine grain structure as it segregates along grain boundaries and significantly reduces their mobility.
| Original language | English |
|---|---|
| Pages (from-to) | 199-204 |
| Number of pages | 6 |
| Journal | Journal of Alloys and Compounds |
| Volume | 710 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Origin of the influence of Cu or Ag micro-additions on the age hardening behavior of ultrafine-grained Al-Mg-Si alloys. / Sauvage, Xavier; Lee, Seungwon; Matsuda, Kenji; Horita, Zenji.
In: Journal of Alloys and Compounds, Vol. 710, 01.01.2017, p. 199-204.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Origin of the influence of Cu or Ag micro-additions on the age hardening behavior of ultrafine-grained Al-Mg-Si alloys
AU - Sauvage, Xavier
AU - Lee, Seungwon
AU - Matsuda, Kenji
AU - Horita, Zenji
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The age hardening behavior of ultrafine-grained Al-Mg-Si alloys with micro-additions of Cu and Ag has been investigated with a special emphasis on the relationship between microstructural features and hardness evolutions. Using transmission electron microscopy, it is shown that the higher hardness and thermal stability induced by a small amount of Cu is due to clustering during grain refinement by severe plastic deformation. It is also demonstrated that the addition of Ag is beneficial for the thermal stability of the ultrafine grain structure as it segregates along grain boundaries and significantly reduces their mobility.
AB - The age hardening behavior of ultrafine-grained Al-Mg-Si alloys with micro-additions of Cu and Ag has been investigated with a special emphasis on the relationship between microstructural features and hardness evolutions. Using transmission electron microscopy, it is shown that the higher hardness and thermal stability induced by a small amount of Cu is due to clustering during grain refinement by severe plastic deformation. It is also demonstrated that the addition of Ag is beneficial for the thermal stability of the ultrafine grain structure as it segregates along grain boundaries and significantly reduces their mobility.
UR - http://www.scopus.com/inward/record.url?scp=85015990338&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015990338&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2017.03.250
DO - 10.1016/j.jallcom.2017.03.250
M3 - Article
AN - SCOPUS:85015990338
VL - 710
SP - 199
EP - 204
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -