Paper Title:
Control of Nano-Precipitates in Age-Hardenable Aluminum Alloys and Their Mechanical Properties
  Abstract

The nano-scale precipitate microstructures and properties of age-hardenable aluminum alloys such as Al-Cu, Al-Mg-Si and Al-Zn-Mg alloys were investigated using conventional electrical resistivity and hardness measurements, TEM and 3D-AP techniques. To increase mechanical strength and ductility of the alloys nano-scale precipitates were effectively controlled by applying new type heat treatments and microalloying elements. In the initial stage of phase decomposition of the alloys containing microalloying elements several types of nanoclusters were formed and distinctly detected by the 3D-AP technique. These nanoclusters greatly affect the nucleation of the subsequent precipitates and resultantly mechanical properties. In Al-Mg-Si and Al-Zn-Mg alloys complicated two-step aging behaviors were found to be originated in the positive or negative effect of the nanoclusters with different structures.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
337-342
DOI
10.4028/www.scientific.net/MSF.475-479.337
Citation
T. Sato, S. Hirosawa, "Control of Nano-Precipitates in Age-Hardenable Aluminum Alloys and Their Mechanical Properties", Materials Science Forum, Vols. 475-479, pp. 337-342, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Tomoatsu Murakami, Kenji Matsuda, Takeshi Nagai, Junya Nakamura, Tokimasa Kawabata, Susumu Ikeno
Chapter 2: Aluminium Alloys
Abstract:It is known that Al-Mg-Ge alloy shows the similar precipitation sequence to Al-Mg-Si alloy, and its equilibrium phase is β-Mg2Ge...
63
Authors: Momoko Tokuda, Kenji Matsuda, Takeshi Nagai, Junya Nakamura, Tokimasa Kawabata, Susumu Ikeno
Chapter 2: Aluminium Alloys
Abstract:It has been known that Cu-and Ag-addition Al-1.0mass%Mg2Si alloys (Al-Mg-Si-Cu alloy and Al-Mg-Si-Ag alloy) have higher hardness...
81
Authors: Taiki Tsuchiya, Katsumi Watanabe, Kenji Matsuda, Tokimasa Kawabata, Katsuya Sakakibara, Tomoyasu Yamaguchi, Seiji Saikawa, Susumu Ikeno
Chapter 10: Magnesium Alloys
Abstract:Magnesium alloys containing aluminum have been used for industrial materials due to their lightweight and recyclability. And the Mg-Al based...
379
Authors: Yuki Kitani, Keitaro Horikawa, Hidetoshi Kobayashi, Kenichi Tanigaki, Tomo Ogura, Akio Hirose
VIII. Dynamic Behavior and Application
Abstract:The effect of impact compression on age hardening behavior was examined for Meso20 and 6061 aluminum alloys using a single stage gun. The...
409
Authors: Hisao Shishido, Yasuo Takaki, Masaya Kozuka, Katsushi Matsumoto, Yasuhiro Aruga
Chapter 6: Advanced Atomic-Scale Characterization
Abstract:The effects of Sn addition on clustering and age-hardening behavior in an Al-0.6Mg-1.0Si (mass %) alloy were investigated. Addition of Sn...
455