User talk:Tullie

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-Poli (talk &bull; contribs) 04:25, 2005 July 29 (UTC)

Portal:Russia and Portal:Ukraine
Hi there. Come check Portal:Russia/New article announcements and Portal:Russia/Russia-related Wikipedia notice board. Or Portal:Ukraine/New article announcements and Portal:Russia/Russia-related Wikipedia notice board if you are more interested in Ukraine. You may want to add these boards to your watchlist. Happy edits, Ghirla | talk 14:30, 24 January 2006 (UTC)

3% carbon steel?
Got a reference? The highest I can find is about 1%, for example 1095 carbon steel. Anything more than that gets too hard and brittle for use; 3% carbon in a low alloy steel would put it in the realm of cast iron, which contains 2-4% carbon. scot 00:02, 19 January 2007 (UTC)


 * Forgot one--52100, a low alloy steel often found in ball bearings, has up to 1.1% of carbon--see http://www.admiralsteel.com/reference/alcomp.html. I think the W  class water hardening tool steels are similar--I know I picked 1095 as my second choice when I couldn't find W-2.  scot 00:18, 19 January 2007 (UTC)

Vanadium carbide steels
Yeah, I did some research last night and ran across the 440V, 420V, and other -V series steels. They all seem to have one thing in common, and that's massive amounts of vanadium. When the C content jumps over 1%, the V content is likewise up over 1%--see http://www.elinemerchandising.com/blog/?cat=13 for a good chart. At those levels, a siginificant amount of the carbon is combining with the vanadium to form vanadium carbide, so what you end up with is a lower level of iron carbide content than the straight carbon content would lead you to expect. Even the old D-2 tool steel, with 1.5% C, has 1.1% V. I also see a higher than 1% carbon steel that uses a significant fraction of tungsten, also to act as a different carbide former (Talonite 6BH). I wonder if these are really steels at all, or if they are more correctly described as an alloy of iron and non-iron carbides? Certainly they aren't formed like "normal" steels, they seem to be based on a powdered metal process (http://www.seamountknifeworks.com/Preliminary%20Report%20On%20The%20Newest%20Particle%20Metallurgy%20Blade%20Material.htm) that may be needed to control the dispersion of carbon into V and Fe carbides at such high levels of alloying elements. The 440V vs. 420V comparision is particularly interesting since the C content is the same, but the V content is nearly double in 420V. Even in Verhoeven and Pendray's work with Damascus steel, which ran about 1.5% to 1.7% carbon (http://www.tms.org/pubs/journals/JOM/9809/Verhoeven-9809.html), significant levels of V and Mo were required in the wootz before the sub-critical temp forging would break up and disperse the iron carbide particles to form the flexible, hard steel desired. While the iron carbide content in the resulting steel is signficantly higher than you'd get with a 1% carbon content, the subcritical heating and forging cycles are required, otherwise you end up with something pretty useless for a blade.

I guess the end result of all this rambling is this--how about we leave in the 1% comment, and add in "low alloy steel" so exclude the mess with the new vanadium carbide steels? scot 15:32, 19 January 2007 (UTC)

Reverting reverts
Hi, Tullie, and welcome to the science pages of Wikipedia. It's important not to get into edit wars with other users, especially those who have made many frequent edits to a page.

Dr. Connolley is a climate modeller with the British Antarctic Survey, and he's usually very careful about references. If you think he's made an error, you might want to mention it on the talk page instead of reverting quickly. He's a very polite chap, and he knows a lot about this subject. --Uncle Ed 23:56, 3 February 2007 (UTC) Dr. Connelley

reason for NPOV tag
When you added this NPOV tag, I was expecting to see you explain your reason, but could not find such. SaltyBoatr 15:16, 17 April 2007 (UTC)

Here is a little exercise in proper sourcing
Some critics would contend that George W. Bush has violated the trust of the American public in relation to warrant-less wiretapping  and the war in Iraq. 

Now, is this sourced or what? Ten sources and almost all are from top notch media outlets. Here is you and others keep adding to the article.

The film has been criticized extensively for not discussing the drawbacks of universal health care in Canada, Britain, France and Cuba, thus presenting a one-sided argument. 

Now, are these both adequately sourced or what? Seriously, what do you think? Turtlescrubber 18:01, 15 July 2007 (UTC)

ArbCom elections are now open!
MediaWiki message delivery (talk) 13:07, 23 November 2015 (UTC)

ArbCom elections are now open!
MediaWiki message delivery (talk) 13:32, 23 November 2015 (UTC)