Talk:Aluminium–lithium alloys

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More info re: Airliners[edit]

The article currently states:
"They are currently used in a few commercial jetliner airframes".
I request that more info be provided here. Which jetliners are currently using Al-Li? Thanks, Lester 23:53, 10 April 2008 (UTC)[reply]

solubility limit[edit]

The article currently states:

Commercial Al-Li alloys contain up to 2.45% lithium... This effect works up to the solubility limit of lithium in aluminium...

So, what is the solubility limit of lithium in aluminum? Is 2.45 % the solubility limit of lithium in aluminum? Geo Swan (talk) 13:50, 14 May 2009 (UTC)[reply]

Well, I don't know if 2.45 % the solubility limit of lithium in aluminum, but I must tell that when the limity of solubility is crossed,no alloy is make. In the botton, we we will have aluminum, while lithium will be up. Agre22 (talk) 21:14, 20 October 2009 (UTC)agre22[reply]

I also think that if there's too much lithium in aluminum, the alloy can become too weak. Anything too much is bad. Agre22 (talk) 19:13, 25 December 2009 (UTC)agre22[reply]

Lighter but bigger?[edit]

I'm surprised to see the Li atom is bigger than the Al atom. Al has more electrons and I'd expect a wider radius therefore. How does that work? Midgley (talk) 10:55, 14 August 2009 (UTC)[reply]

See the atomic radius article for a periodic table of radii and a good explanation. --IanOsgood (talk) 21:15, 23 July 2010 (UTC)[reply]

Aplication as armor[edit]

Is any kind of Al-Li alloy used as an armor or to make a helmet?This site: [Key to metals] talks about this subject, but doesn't tells if Al-Li is being used ina commercial base.Agre22 (talk) 21:09, 20 October 2009 (UTC)agre22[reply]

Size of atoms ? lithium atom is larger than an aluminium one ?[edit]

the article says

"Strain hardening- The lithium atom is larger than an aluminium one"

really ? the lithium atom with 3 proton and 3 electrons on 2 shells is bigger than the aluminium atom with 13 protons and 13 electrons on 3 shells ? how is that even possible ? by redefining the definition of "largeness" for an atom ?

67.204.17.20 (talk) 10:40, 21 January 2011 (UTC)[reply]

Quite right, I removed the offending statement. Wizard191 (talk) 20:25, 21 January 2011 (UTC)[reply]

Just FYI, the lithium atom is larger than the aluminum atom. See the atomic radius article IanOsgood linked to earler. 24.130.82.66 (talk) 18:09, 26 November 2011 (UTC)[reply]

so should we reinstate, but with some ref to justify ? (& see 2009 comment "Lighter but bigger" above) - Rod57 (talk) 09:48, 22 March 2021 (UTC)[reply]

Should note many have more copper than lithium by mass[edit]

Should note many (the 2000 series) have more copper than lithium by mass. Can we explain why they are called Al-Li alloys ? & Are they all less dense than pure Al as implied by intro ? - Rod57 (talk) 10:00, 22 March 2021 (UTC)[reply]