Mesoscopic Structure of Super-High Strength P/M Al-Zn-Mg-Cu Alloys

This paper reviews a method, “in situ consolidation ball milling” that provides artifactfree bulk nanocrystalline samples for several ductile metals such as Zn, Al and Al alloys, and Cu and Cu alloys. The preparation method is described in this paper and examples of the mechanical behavior of nanocrystalline materials made by this technique are given. It is found that in such artifact-free metals, combinations of both high strength and good ductility are possible.

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Stress-corrosion resistance of high-strength Al-Zn-Mg-Cu alloys with and without silver additions

Metallurgical and Materials Transactions B ◽

10.1007/bf02680599 ◽

1972 ◽

Vol 3 (1) ◽

pp. 201-209 ◽

Cited By ~ 10

Author(s):

H. Y. Hunsicker ◽

J. T. Staley ◽

R. H. Brown

Keyword(s):

Corrosion Resistance ◽

Stress Corrosion ◽

High Strength ◽

Cu Alloys ◽

Stress Corrosion Resistance ◽

Silver Additions

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Local electrochemical properties of laser beam-welded high-strength Al–Zn–Mg–Cu alloys

Materials and Corrosion ◽

10.1002/maco.200704081 ◽

2008 ◽

Vol 59 (1) ◽

pp. 5-13 ◽

Cited By ~ 3

Author(s):

J. Wloka ◽

T. Hack ◽

S. Virtanen

Keyword(s):

Laser Beam ◽

Electrochemical Properties ◽

High Strength ◽

Cu Alloys

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Development of high-strength aluminum alloys by mesoscopic structure control

Metallurgical and Materials Transactions A ◽

10.1007/bf02647611 ◽

1995 ◽

Vol 26 (6) ◽

pp. 1597-1599 ◽

Cited By ~ 12

Author(s):

Kozo Osamura ◽

Osamu Kubota ◽

Parsons Promstit ◽

Hiroshi Okuda ◽

Shojiro Ochiai ◽

...

Keyword(s):

Aluminum Alloys ◽

High Strength ◽

Structure Control ◽

Mesoscopic Structure ◽

High Strength Aluminum Alloys

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Effect of Alloying Elements on the Strength and Casting Characteristics of High Strength Al-Zn-Mg-Cu Alloys

Materials Science Forum - PRICM-5 ◽

10.4028/0-87849-960-1.2539 ◽

2005 ◽

pp. 2539-2542

Author(s):

Ki Tae Kim ◽

Jeong Min Kim ◽

Ki Dug Sung ◽

Joong Hwan Jun ◽

Woon Jae Jung

Keyword(s):

High Strength ◽

Alloying Elements ◽

Cu Alloys ◽

Effect Of Alloying

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Key Microstructural Features Responsible for Improved Stress Corrosion Cracking Resistance and Weldability in 7xxx Series Al Alloys Containing Micro / Trace Alloying Additions

Materials Science Forum ◽

10.4028/www.scientific.net/msf.519-521.315 ◽

2006 ◽

Vol 519-521 ◽

pp. 315-320 ◽

Cited By ~ 16

Author(s):

A.K. Mukhopadhyay ◽

K. Satya Prasad ◽

Vikas Kumar ◽

G. Madhusudhan Reddy ◽

S.V. Kamat ◽

...

Keyword(s):

Quantitative Data ◽

Microstructural Analysis ◽

High Strength ◽

Al Alloys ◽

The Other ◽

Alloying Additions ◽

Cu Alloys ◽

Medium Strength ◽

Retrogression And Reaging ◽

Peak Aged

The commercial 7xxx series Al alloys are based on medium strength Al-Zn-Mg and high strength Al-Zn-Mg-Cu systems. The medium strength alloys are weldable, whilst the high strength alloys are nonweldable. On the other hand, the Cu-free, weldable alloys suffer from poor SCC resistance. It is the purpose of this article to provide quantitative data and microstructural analysis to demonstrate that small additions of either Ag or Sc to Al-Zn-Mg and Al-Zn-Mg-Cu alloys bring about very significant improvement in SCC resistance and weldability, respectively. The improvement in SCC resistance of the Cu-bearing alloys due to over aging and retrogression and reaging (RRA) is further discussed in light of a similar improvement in the SCC resistance of these alloys, when peak aged, due to Ag and Sc additions.

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