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Tesla Motors, Inc. (TSLA) Message Board

  • keefwivaneff keefwivaneff Jan 19, 2014 7:44 AM Flag

    Dissimilar metals plus SALT = CORROSION

    Google "I seem to have some nasty corrosion on the support that goes across the front of the Frunk"
    Holy kkrapp......
    I'm going to CANCEL MY ORDER

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    • Pungoteague_Dave | SEPTEMBER 26, 2013
      Virtually every fact stated in the original post is incorrect.

      Aluminum does corrode and in many ways can be worse for structural integrity than steel. I have aluminum panels on a work boat that are completely corroded through, while the stainless steel used in the same spots on its sister boat has no corrosion.

      The Model S does have many steel body components, including the battery cladding on the bottom, and the bumper structures that are bolted to the aluminum chassis are high strength steel. There are other boron steel reinforcements throughout the body. On some cars delivered in the U.S., the steel in the bumpers is beginning to rust and are showing streaking below the headlights.

      The Nissan Leaf is a lot lighter than a Model S. A Leaf weighs 3,291 lbs (1,493 kg), a Models S weighs 4,637 lbs (2,103 kg). But who's quibbling about the fact that the S weighs 41% more than a Leaf? Yeah, that's close enough.

      Lastly, my Model S is already on its third main high voltage battery in less than 9,000 miles, and is on its second 12-volt battery. Reliability with these cars is clearly not yet proven.

    • That is an old post and this is old news. Tesla has switched the bolts they use to mate the boron steel reinforced front bumper to the aluminum carrier assembly since about mid last year and also are switching out older car's bolts as they come through for service. I had my one year old Model S in for a tire rotation last week, no signs of corrosion but they switched out the bolts to bring them up to current spec as a matter of course. Same for some bolts in the suspension. Continual improvement.

      Sentiment: Buy

    • Good thread, thanks.

    • keefwivneff = dumb!

    • IT'S A WORRY!
      felixc (Electrical)
      22 Nov 03 11:48
      Hi,
      are cars with aluminum parts doomed to the scrapyard earlier than regular cars, because of galvanic corrosion?
      My brother is a mechanics at a Ford dealer, and he says that cars like the Lincoln LS, with aluminum parts in its suspension, is hard and costly to repair when aluminum parts are involved, they are corroded so badly. (of course in the short term it makes the dealer happy) When regular maintenance involves aluminum parts, many of these parts must be replaced, there's just no way to remove them without damage. I'm in Montreal, and the environment is very salty during winter.
      I remember using aluminum rivets to hold a cable on an older car. The rivet has been eaten within a year.
      Is aluminum a wave of the future in cars, or just another way to a quicker obsolescence? Will a cheap all-steel car be safer after 10 years than a high-tech car with aluminum parts? (too bad, I like the Lincoln LS)
      Felix
      mcguire (Materials)
      22 Nov 03 18:16
      The culprit isn't galvanic corrosion. It is the quite poor corrosion resistance of aluminum. Carbon steel cars had terrible performance vis-a-vis corrosion until they began to use electro-galvanize on all body parts.
      felixc (Electrical)
      23 Nov 03 22:35
      So is it preferable to stay away from aluminum cars for another several years, until they find ways to slow down the corrosion?
      TVP (Materials)
      24 Nov 03 17:28
      The corrosion performance of automotive aluminum alloys (castings using alloys such as 319, 356, & 380 and formed/forged parts using 6061) is considered acceptable for the expected lifetime of current automobiles-- 10 years or ~ 250,000 kilometers. Keep in mind that most aluminum components are not coated or plated, unlike iron and steel components.

      Another consideration is galvanic corrosion. Historically, many applications have involved aluminum components being directly fastened to iron/steel components, thus resulting in galvanic couples.

    • You guys make Debbie Downer look like a positive thinker guru. Relentless bashing, hairsplitting how terrible every nut and bolt is on the Tesla. Through your entire weekend, day and night, some of you for three years. Unreal.
      Did your wife hang herself after she realized what she married? Or does she sit by herself in another room watching "Green" conspiracy videos while you peck away every negative morsel you can muster on your keyboards? Just curious.

    • People wonder why message board writers are so mad. I'll tell you why. Because there are so many stupid comments by the shorts we (used to me a decent message board) may as well make this a "effed up message board"

    • Such an idiot! I googled it just like you said and nothing comes back.

    • So how about ice cars with aluminum engine or transmissions? You are such an id10t

    • Shut up about the freaking corrosion you bazterd
      we are going to issue a software reca.... I mean.....software upgrade
      so shut your freaking pie hole

    • View More Messages
 
TSLA
199.37-6.610(-3.21%)Jan 28 4:00 PMEST

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