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alloying elements that effect low temp charpy strength

alloying elements that effect low temp charpy strength

alloying elements that effect low temp charpy strength

(OP)
I was wondering if there is a table or publication which addresses the effects of the alloying elements and their direct effect on low temperature charpy readings. I am trying to compile a list of predictors so i can better select raw materials prior to the testing.

RE: alloying elements that effect low temp charpy strength

A thorough answer might require several books. The method of production & all thermal & mechanical processing play a role in a material's properties.  Often alloying elements in combinations play a role -- for steels, there are asustenite formers, ferrite formers & of course carbon affects microstructure in combination with all of these & thermal processing.
You mentioned alloying elements, but S & P, often considered impurities rather than alloying elements, often have a negative effect.  However, Mn at the correct level can largely negate small amounts (0.05 wt%) of S.
Some good introductory reading on steel -- alloying, embrittlement, fracture, heat treatment, mechanical testing, microstructure, etc., here:
http://www.key-to-steel.com/default.aspx?ID=Articles#p9

Of course, you could simply use wrought aluminum or austenitic stainlesses for low temperatures. Their crystal structures have more slip systems available for plastic deformation than the usual steels.
 

RE: alloying elements that effect low temp charpy strength



Also try "Ferroalloys and alloying additives handbook" Shieldalloy Metallurgical Corporation.  This goes through all of the common alloys.

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