Talk:Heat treatment

From Wikipedia, the free encyclopedia

This article is part of WikiProject Metalworking, an attempt to cleanup, categorize and expand Wikipedia articles related to metalworking. If you would like to participate, you can edit the article attached to this page or visit the project page, where a list of open tasks is maintained.

Generally for steels during temp.

Heat treatment is a very general topic name. Could we find a more specific name for this page, if we wanted a topic on just the heat treatment of metals? Hardening (metallurgy) is kind of that, but is only a part of it. — Sverdrup 8 July 2005 07:44 (UTC)

[edit] Much is missing

This article, as it currently stands, is clearly written from the viewpoint of an edged weapons fan. There is little technical information (even in a form suitable for a layman) about, for instance, ferrous metallurgy (a murky reference to crystals is about it), and none relevant to non-ferrous metallurgy.

This is a tremendously important topic bearing on (to pick only a few): welding (not a good idea for items which depend on proper heat treatment for their properties -- unless it's followed by appropriate heat treatment), construction (eg, mild steel beams and columns), machinery (eg, automobiles, engines generally, ...). WP should have a better article. Perhaps someone could walk through a text and paraphrase? ww 19:46, 14 December 2005 (UTC)

[edit] carbon-steel phase chart

Well, i'm an engineering student myself. Regarding this Heat Treatment for metal, i think we should include the Metal-Carbon Phase Chart which determine the heating temperature of metal base on its carbon percentage to achieve particular micro structure, this is really important.--Dehanz 18:28, 9 October 2006 (UTC)

I would love to see an Iron-Cementite (or Iron-Graphite, though alot of charts show both) phase chart. Finding one in the public domain could be difficult, though - copyrights last for 95 years, and some of the information in that chart is only forty years old. Someone would have to find an author willing to release the diagram into the public domain. Lyrl ^Talk _Contribs 21:37, 9 October 2006 (UTC)

Phase diagrams describe alloy systems in a state of equilibria, which is not the case during heat treatment. A T-T-T diagram is much more useful than a phase diagram during heat treating. Phase diagrams are reletively unimportant in heat treatment as kinetics effect the process (i.e. the times involved in the steps are not infinite). Also, a Fe-C diagram would be too narrow for this article. Save the phase diagram for steel, phase diagram, or heat treatment of steel. Iepeulas 17:33, 18 October 2006 (UTC)

TTT diagrams don't make any sense for people not familiar with phase diagrams, however. And phase diagrams are useful for understanding why steels of different carbon contents are heat treated differently. If a source were found for such diagrams, I would support including both phase and TTT diagrams in this article. Lyrl ^Talk _Contribs 18:46, 21 October 2006 (UTC)

Check out the heat treatment section in carbon steel. I created a iron-carbon phase diagram over there with a couple of heat treatment ranges. I agree that the TTT charts are really what's important when it comes to heat treating. --Wizard191 (talk) 13:53, 14 March 2008 (UTC)