> From: "Jack Cole" <[email protected]> > Sent: Thursday, January 24, 2013 3:46:39 AM
> Thanks Chuck, > > > It's encouraging to know we've had the same ideas! You may not have > had the polarity wrong. I've gone through two wires with it so far. > I've thought maybe I was putting too much power through it, but it > also may be that the hydrogen loading is very rough on the wire. After > running ~5 hrs the wire broke and you could touch it, and it would > disintegrate. I may need to try thicker wire (using .009" currently). Could you be seeing "hydrogen embrittlement" --- I'd just finished reading this article in one of my trade mags : Danger: When Hydrogen Embrittlement Strikes http://www.designnews.com/author.asp?section_id=1365&doc_id=248433
